-pgma and -pgmc flags dont work as expected on mac

This is a bug report version of a related ticket.

As I discuss in this ticket, the Assembler available on the Mac OS X platform does not support AVX instructions, though the operating system/ platform does.

Clang, because it uses LLVM as a backend, supports AVX, and can generate AVX simd ops in the object code directly, or AVX assembly, or assemble assembly that uses AVX. Clang will select AVX instructions on SandyBridge or newer macs when given the -march=native flag.

There is another subtlety: the Apple Developer tools version of gcc 4.2 is old enough that it doesn't understand -march=native / doesn't support avx, and while newer versions of gcc (eg gcc 4.8), understand -march=native, and can choose -march=corei7-avx as appropriate (which corresponds to most new macs of the past 2 years), and while these newer gcc's can generate assembly that uses AVX instructions, these newer gcc's still seem to try to use the system assembler.

Now, one would think/hope that passing -pgma clang -pgmc clang to ghc would resolve this build problem, however, this does not seem to work,

though as documented in the related ticket, calling clang directly with the flags that ghc would generate DOES work correctly, (but calling clang by hand is no substitute for a compilation driver)

clang -march=native -mavx $flags -S foo.c
clang -march=native -mavx $flags -c foo.s

what *does* work is change the settings file that gets installed with ghc (for me this file is at /user/local/lib/ghc-7.6.2/settings) to have clang as the default ghc compiler rather than gcc. This makes the build work on the toy test case, but because of the clang cpp problem ticket, clang is not a viable default compiler setting for ghc as yet.

The fact that changing the settings file compiler from gcc -> clang worked, but doing -pgma clang -pgmc clang does not, suggest either those flags are incorrectly implemented for OS X ghcs, or there is some switch that isn't toggled by the currently exposed compiler passes.

I can work around these corner cases, at the cost of some complexity in my build tooling, but the fact that the -pgma clang -pgmc clang bits didn't work, but changing the settings file did work (something that really isn't a good idea given how clang and ghc interact wrt c pre processor), suggests that some part of the build process for the c -> object code path in the ghc driver isn't being configured properly by the standard program flags, but is changed by the settings file.

So this suggests that semantically there is some bug in the driver, or a part of the build process that doesn't have a flag exposed yet, but which behaves different subject to change the compiler choice in the ghc settings file. This seems like a misfeature.

Trac metadata

Trac field	Value
Version	7.6.3
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler
Test case
Differential revisions
BlockedBy	#7678 (closed)
Related
Blocking
CC
Operating system
Architecture

mentioned in issue #7678 (closed)

changed weight to 5

added Tbug Trac import labels

Trac metadata

Trac field	Value
BlockedBy	#7678 (closed) →

closed

If you pass GHC the -v flag, then you can see what commands it's running, so you will be able to see the difference between using the -pgm* flags and changing the compiler in the settings file.

I suspect that what you're running into is that using a -pgmX flag empties the flag list for X, so you will need to use -optX flags to add any necessary flags again. This is deliberate, as the current flag list is designed for a different X, so you may not want to use these flags with the new X (the new X may not even support them).

If you still think there's a bug, please reopen and give more details about what's happening, and what you think should happen.

Trac metadata

Trac field	Value
Resolution	Unresolved → ResolvedWorksForMe

Attached file test.zip (download).

test build package

reopened

Hi Ian,

i've attached the test case properly,

which as the -pgma etc flags set correctly.

when I run cabal clean ; cabal build -v3

i get the following, with the relevant bit at the end when the c code gets compiled.

carter code/test » cabal clean ; cabal build -v3                                                      1 ↵
cleaning...
Package has never been configured. Configuring with default flags. If this
fails, please run configure manually.
searching for ghc in path.
found ghc at /usr/local/bin/ghc
("/usr/local/bin/ghc",["--numeric-version"])
/usr/local/bin/ghc is version 7.6.2
looking for tool "ghc-pkg" near compiler in /usr/local/bin
found ghc-pkg in /usr/local/bin/ghc-pkg
("/usr/local/bin/ghc-pkg",["--version"])
/usr/local/bin/ghc-pkg is version 7.6.2
("/usr/local/bin/ghc",["--supported-languages"])
("/usr/local/bin/ghc",["--info"])
Reading installed packages...
("/usr/local/bin/ghc-pkg",["dump","--global","-v0"])
("/usr/local/bin/ghc-pkg",["dump","--user","-v0"])
("/usr/local/bin/ghc",["--print-libdir"])
Reading available packages...
Choosing modular solver.
Resolving dependencies...
[__0] trying: test-0.1.0.0 (user goal)
[__1] trying: base-4.6.0.1/installed-251... (dependency of test-0.1.0.0)
[__2] trying: rts-1.0/installedbuil... (dependency of
base-4.6.0.1/installed-251...)
[__3] trying: integer-gmp-0.5.0.0/installed-49d... (dependency of
base-4.6.0.1/installed-251...)
[__4] trying: ghc-prim-0.3.0.0/installed-bd1... (dependency of
base-4.6.0.1/installed-251...)
[__5] trying: vector-0.10.0.1/installed-04d... (dependency of test-0.1.0.0)
[__6] trying: primitive-0.5.0.1/installed-4ec... (dependency of
vector-0.10.0.1/installed-04d...)
[__7] trying: deepseq-1.3.0.1/installed-5a5... (dependency of
vector-0.10.0.1/installed-04d...)
[__8] next goal: array (dependency of deepseq-1.3.0.1/installed-5a5...)
[__8] trying: array-0.4.0.1/installed-bfd...
[__9] done
Using internal setup method with build-type Simple and args:
["configure","--verbose=3","--builddir=dist","--ghc","--prefix=/Users/carter/Library/Haskell/","--bindir=$prefix/bin","--libdir=$prefix/lib","--libsubdir=$arch-$os-$compiler/$pkgid","--libexecdir=$prefix/libexec","--datadir=$prefix/share","--datasubdir=$arch-$os-$compiler/$pkgid","--docdir=$datadir/doc/$arch-$os-$compiler/$pkgid","--htmldir=$docdir/html","--haddockdir=$htmldir","--enable-library-profiling","--enable-shared","--enable-library-for-ghci","--user","--constraint=vector
==0.10.0.1","--constraint=base
==4.6.0.1","--disable-tests","--disable-benchmarks"]
Configuring test-0.1.0.0...
creating dist
searching for ghc in path.
found ghc at /usr/local/bin/ghc
("/usr/local/bin/ghc",["--numeric-version"])
/usr/local/bin/ghc is version 7.6.2
looking for tool "ghc-pkg" near compiler in /usr/local/bin
found ghc-pkg in /usr/local/bin/ghc-pkg
("/usr/local/bin/ghc-pkg",["--version"])
/usr/local/bin/ghc-pkg is version 7.6.2
("/usr/local/bin/ghc",["--supported-languages"])
("/usr/local/bin/ghc",["--info"])
Reading installed packages...
("/usr/local/bin/ghc-pkg",["dump","--global","-v0"])
("/usr/local/bin/ghc-pkg",["dump","--user","-v0"])
("/usr/local/bin/ghc",["--print-libdir"])
Warning: The 'license-file' field refers to the file 'LICENSE' which does not
exist.
Dependency base ==4.6.0.1: using base-4.6.0.1
Dependency vector ==0.10.0.1: using vector-0.10.0.1
searching for alex in path.
found alex at /Users/carter/Library/Haskell/bin/alex
("/Users/carter/Library/Haskell/bin/alex",["--version"])
/Users/carter/Library/Haskell/bin/alex is version 3.0.5
searching for ar in path.
found ar at /usr/bin/ar
searching for c2hs in path.
found c2hs at /Users/carter/Library/Haskell/bin/c2hs
("/Users/carter/Library/Haskell/bin/c2hs",["--numeric-version"])
/Users/carter/Library/Haskell/bin/c2hs is version 0.16.3
searching for cpphs in path.
found cpphs at /Users/carter/Library/Haskell/bin/cpphs
("/Users/carter/Library/Haskell/bin/cpphs",["--version"])
/Users/carter/Library/Haskell/bin/cpphs is version 1.16
searching for ffihugs in path.
Cannot find ffihugs on the path
searching for gcc in path.
found gcc at /usr/local/bin/gcc
("/usr/local/bin/gcc",["-dumpversion"])
/usr/local/bin/gcc is version 4.8.0
searching for greencard in path.
Cannot find greencard on the path
searching for haddock in path.
found haddock at /Users/carter/Library/Haskell/bin/haddock
("/Users/carter/Library/Haskell/bin/haddock",["--version"])
/Users/carter/Library/Haskell/bin/haddock is version 2.13.1
searching for happy in path.
found happy at /Users/carter/Library/Haskell/bin/happy
("/Users/carter/Library/Haskell/bin/happy",["--version"])
/Users/carter/Library/Haskell/bin/happy is version 1.18.10
searching for hmake in path.
Cannot find hmake on the path
searching for hpc in path.
found hpc at /usr/local/bin/hpc
("/usr/local/bin/hpc",["version"])
/usr/local/bin/hpc is version 0.6
looking for tool "hsc2hs" near compiler in /usr/local/bin
found hsc2hs in /usr/local/bin/hsc2hs
("/usr/local/bin/hsc2hs",["--version"])
/usr/local/bin/hsc2hs is version 0.67
searching for HsColour in path.
found HsColour at /Users/carter/Library/Haskell/bin/HsColour
("/Users/carter/Library/Haskell/bin/HsColour",["-version"])
/Users/carter/Library/Haskell/bin/HsColour is version 1.20
searching for hugs in path.
Cannot find hugs on the path
searching for jhc in path.
Cannot find jhc on the path
searching for ld in path.
found ld at /usr/bin/ld
("/usr/local/bin/ghc",["-c","/var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/13324.c","-o","/var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/13324.o"])
("/usr/bin/ld",["-x","-r","/var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/13324.o","-o","/var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/13325.o"])
searching for lhc in path.
Cannot find lhc on the path
searching for lhc-pkg in path.
Cannot find lhc-pkg on the path
searching for nhc98 in path.
Cannot find nhc98 on the path
searching for pkg-config in path.
found pkg-config at /usr/local/bin/pkg-config
("/usr/local/bin/pkg-config",["--version"])
/usr/local/bin/pkg-config is version 0.28
searching for ranlib in path.
found ranlib at /usr/bin/ranlib
searching for strip in path.
found strip at /usr/bin/strip
searching for tar in path.
found tar at /usr/bin/tar
searching for uhc in path.
Cannot find uhc on the path
("/usr/local/bin/ghc",["--info"])
Using Cabal-1.17.0 compiled by ghc-7.6
Using compiler: ghc-7.6.2
Using install prefix: /Users/carter/Library/Haskell/
Binaries installed in: /Users/carter/Library/Haskell//bin
Libraries installed in:
/Users/carter/Library/Haskell//lib/x86_64-osx-ghc-7.6.2/test-0.1.0.0
Private binaries installed in: /Users/carter/Library/Haskell//libexec
Data files installed in:
/Users/carter/Library/Haskell//share/x86_64-osx-ghc-7.6.2/test-0.1.0.0
Documentation installed in:
/Users/carter/Library/Haskell//share/doc/x86_64-osx-ghc-7.6.2/test-0.1.0.0
Using alex version 3.0.5 found on system at:
/Users/carter/Library/Haskell/bin/alex
Using ar found on system at: /usr/bin/ar
Using c2hs version 0.16.3 found on system at:
/Users/carter/Library/Haskell/bin/c2hs
Using cpphs version 1.16 found on system at:
/Users/carter/Library/Haskell/bin/cpphs
No ffihugs found
Using gcc version 4.8.0 found on system at: /usr/local/bin/gcc
Using ghc version 7.6.2 found on system at: /usr/local/bin/ghc
Using ghc-pkg version 7.6.2 found on system at: /usr/local/bin/ghc-pkg
No greencard found
Using haddock version 2.13.1 found on system at:
/Users/carter/Library/Haskell/bin/haddock
Using happy version 1.18.10 found on system at:
/Users/carter/Library/Haskell/bin/happy
No hmake found
Using hpc version 0.6 found on system at: /usr/local/bin/hpc
Using hsc2hs version 0.67 found on system at: /usr/local/bin/hsc2hs
Using hscolour version 1.20 found on system at:
/Users/carter/Library/Haskell/bin/HsColour
No hugs found
No jhc found
Using ld found on system at: /usr/bin/ld
No lhc found
No lhc-pkg found
No nhc98 found
Using pkg-config version 0.28 found on system at: /usr/local/bin/pkg-config
Using ranlib found on system at: /usr/bin/ranlib
Using strip found on system at: /usr/bin/strip
Using tar found on system at: /usr/bin/tar
No uhc found
("/usr/local/bin/gcc",["-m64","/var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/13324.c","-o","/var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/13324","-D__GLASGOW_HASKELL__=706","-Ddarwin_HOST_OS=1","-Dx86_64_HOST_ARCH=1","-Idist/build/autogen","-I.","-march=native","-O3","-I/Users/carter/Library/Haskell//lib/x86_64-osx-ghc-7.6.2/vector-0.10.0.1/include","-I/Users/carter/Library/Haskell//lib/x86_64-osx-ghc-7.6.2/primitive-0.5.0.1/include","-I/usr/local/lib/ghc-7.6.2/base-4.6.0.1/include","-I/usr/local/lib/ghc-7.6.2/include","-march=native","-O3","-L/Users/carter/Library/Haskell//lib/x86_64-osx-ghc-7.6.2/vector-0.10.0.1","-L/Users/carter/Library/Haskell//lib/x86_64-osx-ghc-7.6.2/primitive-0.5.0.1","-L/usr/local/lib/ghc-7.6.2/deepseq-1.3.0.1","-L/usr/local/lib/ghc-7.6.2/array-0.4.0.1","-L/usr/local/lib/ghc-7.6.2/base-4.6.0.1","-L/usr/local/lib/ghc-7.6.2/integer-gmp-0.5.0.0","-L/usr/local/lib/ghc-7.6.2/ghc-prim-0.3.0.0","-L/usr/local/lib/ghc-7.6.2"])
Using internal setup method with build-type Simple and args:
["build","--verbose=3","--builddir=dist"]
Component build order: executable 'test'
creating dist/build
creating dist/build/autogen
Building test-0.1.0.0...
Preprocessing executable 'test' for test-0.1.0.0...
Building executable test...
creating dist/build/test
creating dist/build/test/test-tmp
("/usr/local/bin/ghc",["--make","-no-link","-v","-fbuilding-cabal-package","-O","-static","-odir","dist/build/test/test-tmp","-hidir","dist/build/test/test-tmp","-stubdir","dist/build/test/test-tmp","-i","-idist/build/test/test-tmp","-isrc","-idist/build/autogen","-Idist/build/autogen","-Idist/build/test/test-tmp","-optP-include","-optPdist/build/autogen/cabal_macros.h","-hide-all-packages","-package-db","dist/package.conf.inplace","-package-id","base-4.6.0.1-2514ecbfe6573e639515d3e91d6e1f29","-package-id","vector-0.10.0.1-04d4a4538e7c444d2821bb98877cda5f","-XHaskell2010","src/main.hs","-fllvm","-v","-pgma","clang","-pgmc","clang","-pgml","clang","-opta","-mavx","-opta","-march=native","-optc","-mavx","-optc","-march=native","-optc","-O2"])
Glasgow Haskell Compiler, Version 7.6.2, stage 2 booted by GHC version 7.4.2
Using binary package database: /usr/local/lib/ghc-7.6.2/package.conf.d/package.cache
Using binary package database: /Users/carter/.ghc/x86_64-darwin-7.6.2/package.conf.d/package.cache
Using package config file: dist/package.conf.inplace
package Cabal-1.17.0-38434fa60f61a5b61574f6aba8367e79 is shadowed by package Cabal-1.17.0-b9e1bc8708d659bcedd2261fc5afabdc
wired-in package ghc-prim mapped to ghc-prim-0.3.0.0-bd1d393903577692a5ef2aa7027b71f6
wired-in package integer-gmp mapped to integer-gmp-0.5.0.0-49dcb29a60dab14e03e6dd01e871a242
wired-in package base mapped to base-4.6.0.1-2514ecbfe6573e639515d3e91d6e1f29
wired-in package rts mapped to builtin_rts
wired-in package template-haskell mapped to template-haskell-2.8.0.0-0ad833f8876aca146ee7fa686b5bc01a
wired-in package dph-seq not found.
wired-in package dph-par not found.
Hsc static flags: -static -static
*** Chasing dependencies:
Chasing modules from: *src/main.hs
Stable obj: []
Stable BCO: []
Ready for upsweep
  [NONREC
      ModSummary {
         ms_hs_date = 2013-05-21 18:00:15 UTC
         ms_mod = main:Main,
         ms_textual_imps = [import (implicit) Prelude,
                            import qualified Data.Vector.Storable as S, import Foreign.C.Types,
                            import Foreign (), import Foreign.Ptr,
                            import qualified Data.Vector.Storable.Mutable as SM]
         ms_srcimps = []
      }]
*** Deleting temp files:
Deleting: 
compile: input file src/main.hs
Created temporary directory: /var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13365_0
*** Checking old interface for main:Main:
[1 of 1] Compiling Main             ( src/main.hs, dist/build/test/test-tmp/Main.o )
*** Parser:
*** Renamer/typechecker:
*** Desugar:
Result size of Desugar (after optimization)
  = {terms: 140, types: 153, coercions: 26}
*** Simplifier:
Result size of Simplifier iteration=1
  = {terms: 168, types: 187, coercions: 45}
Result size of Simplifier iteration=2
  = {terms: 156, types: 191, coercions: 45}
Result size of Simplifier iteration=3
  = {terms: 152, types: 182, coercions: 45}
Result size of Simplifier = {terms: 152, types: 182, coercions: 45}
*** Specialise:
Result size of Specialise = {terms: 152, types: 182, coercions: 45}
*** Float out(FOS {Lam = Just 0, Consts = True, PAPs = False}):
Result size of Float out(FOS {Lam = Just 0,
                              Consts = True,
                              PAPs = False})
  = {terms: 194, types: 254, coercions: 45}
*** Float inwards:
Result size of Float inwards
  = {terms: 194, types: 254, coercions: 45}
*** Simplifier:
Result size of Simplifier iteration=1
  = {terms: 552, types: 698, coercions: 291}
Result size of Simplifier iteration=2
  = {terms: 338, types: 346, coercions: 69}
Result size of Simplifier iteration=3
  = {terms: 315, types: 309, coercions: 59}
Result size of Simplifier iteration=4
  = {terms: 315, types: 309, coercions: 59}
Result size of Simplifier = {terms: 315, types: 309, coercions: 59}
*** Simplifier:
Result size of Simplifier iteration=1
  = {terms: 289, types: 278, coercions: 59}
Result size of Simplifier = {terms: 289, types: 278, coercions: 59}
*** Simplifier:
Result size of Simplifier iteration=1
  = {terms: 301, types: 306, coercions: 115}
Result size of Simplifier iteration=2
  = {terms: 233, types: 226, coercions: 45}
Result size of Simplifier = {terms: 233, types: 226, coercions: 45}
*** Demand analysis:
Result size of Demand analysis
  = {terms: 233, types: 226, coercions: 45}
*** Worker Wrapper binds:
Result size of Worker Wrapper binds
  = {terms: 233, types: 226, coercions: 45}
*** Simplifier:
Result size of Simplifier = {terms: 233, types: 226, coercions: 45}
*** Float out(FOS {Lam = Just 0, Consts = True, PAPs = True}):
Result size of Float out(FOS {Lam = Just 0,
                              Consts = True,
                              PAPs = True})
  = {terms: 235, types: 228, coercions: 45}
*** Common sub-expression:
Result size of Common sub-expression
  = {terms: 235, types: 228, coercions: 45}
*** Float inwards:
Result size of Float inwards
  = {terms: 235, types: 228, coercions: 45}
*** Simplifier:
Result size of Simplifier = {terms: 235, types: 228, coercions: 45}
*** Tidy Core:
Result size of Tidy Core = {terms: 235, types: 228, coercions: 45}
writeBinIface: 13 Names
writeBinIface: 62 dict entries
*** CorePrep:
Result size of CorePrep = {terms: 263, types: 254, coercions: 45}
*** Stg2Stg:
*** CodeOutput:
*** CodeGen:
*** LlVM CodeGen:
You are using a new version of LLVM that hasn't been tested yet!
We will try though...
*** LLVM Optimiser:
'opt' '/var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13365_0/ghc13365_0.ll' '-o' '/var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13365_0/ghc13365_0.bc' '-O1' '--enable-tbaa=true'
*** LLVM Compiler:
'llc' '-O2' '-relocation-model=pic' '/var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13365_0/ghc13365_0.bc' '-o' '/var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13365_0/ghc13365_0.lm_s' '--enable-tbaa=true'
*** LlVM Mangler:
*** Clang (Assembler):
'clang' '-m64' '-Isrc' '-Idist/build/test/test-tmp' '-Idist/build/autogen' '-Idist/build/test/test-tmp' '-c' '/var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13365_0/ghc13365_0.s' '-o' 'dist/build/test/test-tmp/Main.o'
Upsweep completely successful.
*** Deleting temp files:
Deleting: /var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13365_0/ghc13365_0.s /var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13365_0/ghc13365_0.lm_s /var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13365_0/ghc13365_0.bc /var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13365_0/ghc13365_0.c /var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13365_0/ghc13365_0.ll
Warning: deleting non-existent /var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13365_0/ghc13365_0.c
*** Deleting temp files:
Deleting: 
*** Deleting temp dirs:
Deleting: /var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13365_0
Building C Sources...
creating dist/build/test/test-tmp
("/usr/local/bin/ghc",["-c","-v","-static","-odir","dist/build/test/test-tmp","-Idist/build/test/test-tmp","-optc-march=native","-optc-O3","-optc-O2","-package-db","dist/package.conf.inplace","-package-id","base-4.6.0.1-2514ecbfe6573e639515d3e91d6e1f29","-package-id","vector-0.10.0.1-04d4a4538e7c444d2821bb98877cda5f","cbits/daft.c"])
Glasgow Haskell Compiler, Version 7.6.2, stage 2 booted by GHC version 7.4.2
Using binary package database: /usr/local/lib/ghc-7.6.2/package.conf.d/package.cache
Using binary package database: /Users/carter/.ghc/x86_64-darwin-7.6.2/package.conf.d/package.cache
Using package config file: dist/package.conf.inplace
package Cabal-1.17.0-38434fa60f61a5b61574f6aba8367e79 is shadowed by package Cabal-1.17.0-b9e1bc8708d659bcedd2261fc5afabdc
hiding package hashable-1.1.2.5 to avoid conflict with later version hashable-1.2.0.5
hiding package unordered-containers-0.2.3.0 to avoid conflict with later version unordered-containers-0.2.3.1
wired-in package ghc-prim mapped to ghc-prim-0.3.0.0-bd1d393903577692a5ef2aa7027b71f6
wired-in package integer-gmp mapped to integer-gmp-0.5.0.0-49dcb29a60dab14e03e6dd01e871a242
wired-in package base mapped to base-4.6.0.1-2514ecbfe6573e639515d3e91d6e1f29
wired-in package rts mapped to builtin_rts
wired-in package template-haskell mapped to template-haskell-2.8.0.0-0ad833f8876aca146ee7fa686b5bc01a
wired-in package dph-seq not found.
wired-in package dph-par not found.
Hsc static flags: -static -static
Created temporary directory: /var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13373_0
*** C Compiler:
'gcc' '-m64' '-fno-stack-protector' '-m64' '-x' 'c' 'cbits/daft.c' '-o' '/var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13373_0/ghc13373_0.s' '-fno-common' '-U __PIC__' '-D__PIC__' '-Wimplicit' '-S' '-O' '-D__GLASGOW_HASKELL__=706' '-DTABLES_NEXT_TO_CODE' '-march=native' '-O3' '-O2' '-I' 'dist/build/test/test-tmp' '-I' '/Users/carter/Library/Haskell//lib/x86_64-osx-ghc-7.6.2/vector-0.10.0.1/include' '-I' '/Users/carter/Library/Haskell//lib/x86_64-osx-ghc-7.6.2/primitive-0.5.0.1/include' '-I' '/usr/local/lib/ghc-7.6.2/base-4.6.0.1/include' '-I' '/usr/local/lib/ghc-7.6.2/include'
*** Assembler:
'gcc' '-m64' '-fno-stack-protector' '-m64' '-Idist/build/test/test-tmp' '-c' '/var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13373_0/ghc13373_0.s' '-o' 'dist/build/test/test-tmp/cbits/daft.o'

/var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13373_0/ghc13373_0.s:6:0:
    no such instruction: `vmovupd (%rdi), %xmm0'

/var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13373_0/ghc13373_0.s:7:0:
    no such instruction: `vaddpd %xmm0, %xmm0,%xmm0'

/var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13373_0/ghc13373_0.s:8:0:
    no such instruction: `vmovupd %xmm0, (%rsi)'
*** Deleting temp files:
Deleting: /var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13373_0/ghc13373_0.s
*** Deleting temp dirs:
Deleting: /var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13373_0
/usr/local/bin/ghc returned ExitFailure 1

Trac metadata

Trac field	Value
Resolution	ResolvedWorksForMe → Unresolved

in contrast, when I change the ghc settings file to point to clang rather than gcc

i get the following (successful) build output trace

carter code/test » cabal clean ; cabal build -v3
cleaning...
Package has never been configured. Configuring with default flags. If this
fails, please run configure manually.
searching for ghc in path.
found ghc at /usr/local/bin/ghc
("/usr/local/bin/ghc",["--numeric-version"])
/usr/local/bin/ghc is version 7.6.2
looking for tool "ghc-pkg" near compiler in /usr/local/bin
found ghc-pkg in /usr/local/bin/ghc-pkg
("/usr/local/bin/ghc-pkg",["--version"])
/usr/local/bin/ghc-pkg is version 7.6.2
("/usr/local/bin/ghc",["--supported-languages"])
("/usr/local/bin/ghc",["--info"])
Reading installed packages...
("/usr/local/bin/ghc-pkg",["dump","--global","-v0"])
("/usr/local/bin/ghc-pkg",["dump","--user","-v0"])
("/usr/local/bin/ghc",["--print-libdir"])
Reading available packages...
Choosing modular solver.
Resolving dependencies...
[__0] trying: test-0.1.0.0 (user goal)
[__1] trying: base-4.6.0.1/installed-251... (dependency of test-0.1.0.0)
[__2] trying: rts-1.0/installedbuil... (dependency of
base-4.6.0.1/installed-251...)
[__3] trying: integer-gmp-0.5.0.0/installed-49d... (dependency of
base-4.6.0.1/installed-251...)
[__4] trying: ghc-prim-0.3.0.0/installed-bd1... (dependency of
base-4.6.0.1/installed-251...)
[__5] trying: vector-0.10.0.1/installed-04d... (dependency of test-0.1.0.0)
[__6] trying: primitive-0.5.0.1/installed-4ec... (dependency of
vector-0.10.0.1/installed-04d...)
[__7] trying: deepseq-1.3.0.1/installed-5a5... (dependency of
vector-0.10.0.1/installed-04d...)
[__8] next goal: array (dependency of deepseq-1.3.0.1/installed-5a5...)
[__8] trying: array-0.4.0.1/installed-bfd...
[__9] done
Using internal setup method with build-type Simple and args:
["configure","--verbose=3","--builddir=dist","--ghc","--prefix=/Users/carter/Library/Haskell/","--bindir=$prefix/bin","--libdir=$prefix/lib","--libsubdir=$arch-$os-$compiler/$pkgid","--libexecdir=$prefix/libexec","--datadir=$prefix/share","--datasubdir=$arch-$os-$compiler/$pkgid","--docdir=$datadir/doc/$arch-$os-$compiler/$pkgid","--htmldir=$docdir/html","--haddockdir=$htmldir","--enable-library-profiling","--enable-shared","--enable-library-for-ghci","--user","--constraint=vector
==0.10.0.1","--constraint=base
==4.6.0.1","--disable-tests","--disable-benchmarks"]
Configuring test-0.1.0.0...
creating dist
searching for ghc in path.
found ghc at /usr/local/bin/ghc
("/usr/local/bin/ghc",["--numeric-version"])
/usr/local/bin/ghc is version 7.6.2
looking for tool "ghc-pkg" near compiler in /usr/local/bin
found ghc-pkg in /usr/local/bin/ghc-pkg
("/usr/local/bin/ghc-pkg",["--version"])
/usr/local/bin/ghc-pkg is version 7.6.2
("/usr/local/bin/ghc",["--supported-languages"])
("/usr/local/bin/ghc",["--info"])
Reading installed packages...
("/usr/local/bin/ghc-pkg",["dump","--global","-v0"])
("/usr/local/bin/ghc-pkg",["dump","--user","-v0"])
("/usr/local/bin/ghc",["--print-libdir"])
Warning: The 'license-file' field refers to the file 'LICENSE' which does not
exist.
Dependency base ==4.6.0.1: using base-4.6.0.1
Dependency vector ==0.10.0.1: using vector-0.10.0.1
searching for alex in path.
found alex at /Users/carter/Library/Haskell/bin/alex
("/Users/carter/Library/Haskell/bin/alex",["--version"])
/Users/carter/Library/Haskell/bin/alex is version 3.0.5
searching for ar in path.
found ar at /usr/bin/ar
searching for c2hs in path.
found c2hs at /Users/carter/Library/Haskell/bin/c2hs
("/Users/carter/Library/Haskell/bin/c2hs",["--numeric-version"])
/Users/carter/Library/Haskell/bin/c2hs is version 0.16.3
searching for cpphs in path.
found cpphs at /Users/carter/Library/Haskell/bin/cpphs
("/Users/carter/Library/Haskell/bin/cpphs",["--version"])
/Users/carter/Library/Haskell/bin/cpphs is version 1.16
searching for ffihugs in path.
Cannot find ffihugs on the path
searching for gcc in path.
found gcc at /usr/local/bin/gcc
("/usr/local/bin/gcc",["-dumpversion"])
/usr/local/bin/gcc is version 4.8.0
searching for greencard in path.
Cannot find greencard on the path
searching for haddock in path.
found haddock at /Users/carter/Library/Haskell/bin/haddock
("/Users/carter/Library/Haskell/bin/haddock",["--version"])
/Users/carter/Library/Haskell/bin/haddock is version 2.13.1
searching for happy in path.
found happy at /Users/carter/Library/Haskell/bin/happy
("/Users/carter/Library/Haskell/bin/happy",["--version"])
/Users/carter/Library/Haskell/bin/happy is version 1.18.10
searching for hmake in path.
Cannot find hmake on the path
searching for hpc in path.
found hpc at /usr/local/bin/hpc
("/usr/local/bin/hpc",["version"])
/usr/local/bin/hpc is version 0.6
looking for tool "hsc2hs" near compiler in /usr/local/bin
found hsc2hs in /usr/local/bin/hsc2hs
("/usr/local/bin/hsc2hs",["--version"])
/usr/local/bin/hsc2hs is version 0.67
searching for HsColour in path.
found HsColour at /Users/carter/Library/Haskell/bin/HsColour
("/Users/carter/Library/Haskell/bin/HsColour",["-version"])
/Users/carter/Library/Haskell/bin/HsColour is version 1.20
searching for hugs in path.
Cannot find hugs on the path
searching for jhc in path.
Cannot find jhc on the path
searching for ld in path.
found ld at /usr/bin/ld
("/usr/local/bin/ghc",["-c","/var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/13405.c","-o","/var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/13405.o"])

/var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/13405.c:1:12:
     warning: control reaches end of non-void function [-Wreturn-type]
int foo() {}
           ^
1 warning generated.
("/usr/bin/ld",["-x","-r","/var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/13405.o","-o","/var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/13406.o"])
searching for lhc in path.
Cannot find lhc on the path
searching for lhc-pkg in path.
Cannot find lhc-pkg on the path
searching for nhc98 in path.
Cannot find nhc98 on the path
searching for pkg-config in path.
found pkg-config at /usr/local/bin/pkg-config
("/usr/local/bin/pkg-config",["--version"])
/usr/local/bin/pkg-config is version 0.28
searching for ranlib in path.
found ranlib at /usr/bin/ranlib
searching for strip in path.
found strip at /usr/bin/strip
searching for tar in path.
found tar at /usr/bin/tar
searching for uhc in path.
Cannot find uhc on the path
("/usr/local/bin/ghc",["--info"])
Using Cabal-1.17.0 compiled by ghc-7.6
Using compiler: ghc-7.6.2
Using install prefix: /Users/carter/Library/Haskell/
Binaries installed in: /Users/carter/Library/Haskell//bin
Libraries installed in:
/Users/carter/Library/Haskell//lib/x86_64-osx-ghc-7.6.2/test-0.1.0.0
Private binaries installed in: /Users/carter/Library/Haskell//libexec
Data files installed in:
/Users/carter/Library/Haskell//share/x86_64-osx-ghc-7.6.2/test-0.1.0.0
Documentation installed in:
/Users/carter/Library/Haskell//share/doc/x86_64-osx-ghc-7.6.2/test-0.1.0.0
Using alex version 3.0.5 found on system at:
/Users/carter/Library/Haskell/bin/alex
Using ar found on system at: /usr/bin/ar
Using c2hs version 0.16.3 found on system at:
/Users/carter/Library/Haskell/bin/c2hs
Using cpphs version 1.16 found on system at:
/Users/carter/Library/Haskell/bin/cpphs
No ffihugs found
Using gcc version 4.8.0 found on system at: /usr/local/bin/gcc
Using ghc version 7.6.2 found on system at: /usr/local/bin/ghc
Using ghc-pkg version 7.6.2 found on system at: /usr/local/bin/ghc-pkg
No greencard found
Using haddock version 2.13.1 found on system at:
/Users/carter/Library/Haskell/bin/haddock
Using happy version 1.18.10 found on system at:
/Users/carter/Library/Haskell/bin/happy
No hmake found
Using hpc version 0.6 found on system at: /usr/local/bin/hpc
Using hsc2hs version 0.67 found on system at: /usr/local/bin/hsc2hs
Using hscolour version 1.20 found on system at:
/Users/carter/Library/Haskell/bin/HsColour
No hugs found
No jhc found
Using ld found on system at: /usr/bin/ld
No lhc found
No lhc-pkg found
No nhc98 found
Using pkg-config version 0.28 found on system at: /usr/local/bin/pkg-config
Using ranlib found on system at: /usr/bin/ranlib
Using strip found on system at: /usr/bin/strip
Using tar found on system at: /usr/bin/tar
No uhc found
("/usr/local/bin/gcc",["-m64","/var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/13405.c","-o","/var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/13405","-D__GLASGOW_HASKELL__=706","-Ddarwin_HOST_OS=1","-Dx86_64_HOST_ARCH=1","-Idist/build/autogen","-I.","-march=native","-O3","-I/Users/carter/Library/Haskell//lib/x86_64-osx-ghc-7.6.2/vector-0.10.0.1/include","-I/Users/carter/Library/Haskell//lib/x86_64-osx-ghc-7.6.2/primitive-0.5.0.1/include","-I/usr/local/lib/ghc-7.6.2/base-4.6.0.1/include","-I/usr/local/lib/ghc-7.6.2/include","-march=native","-O3","-L/Users/carter/Library/Haskell//lib/x86_64-osx-ghc-7.6.2/vector-0.10.0.1","-L/Users/carter/Library/Haskell//lib/x86_64-osx-ghc-7.6.2/primitive-0.5.0.1","-L/usr/local/lib/ghc-7.6.2/deepseq-1.3.0.1","-L/usr/local/lib/ghc-7.6.2/array-0.4.0.1","-L/usr/local/lib/ghc-7.6.2/base-4.6.0.1","-L/usr/local/lib/ghc-7.6.2/integer-gmp-0.5.0.0","-L/usr/local/lib/ghc-7.6.2/ghc-prim-0.3.0.0","-L/usr/local/lib/ghc-7.6.2"])
Using internal setup method with build-type Simple and args:
["build","--verbose=3","--builddir=dist"]
Component build order: executable 'test'
creating dist/build
creating dist/build/autogen
Building test-0.1.0.0...
Preprocessing executable 'test' for test-0.1.0.0...
Building executable test...
creating dist/build/test
creating dist/build/test/test-tmp
("/usr/local/bin/ghc",["--make","-no-link","-v","-fbuilding-cabal-package","-O","-static","-odir","dist/build/test/test-tmp","-hidir","dist/build/test/test-tmp","-stubdir","dist/build/test/test-tmp","-i","-idist/build/test/test-tmp","-isrc","-idist/build/autogen","-Idist/build/autogen","-Idist/build/test/test-tmp","-optP-include","-optPdist/build/autogen/cabal_macros.h","-hide-all-packages","-package-db","dist/package.conf.inplace","-package-id","base-4.6.0.1-2514ecbfe6573e639515d3e91d6e1f29","-package-id","vector-0.10.0.1-04d4a4538e7c444d2821bb98877cda5f","-XHaskell2010","src/main.hs","-fllvm","-v","-pgma","clang","-pgmc","clang","-pgml","clang","-opta","-mavx","-opta","-march=native","-optc","-mavx","-optc","-march=native","-optc","-O2"])
Glasgow Haskell Compiler, Version 7.6.2, stage 2 booted by GHC version 7.4.2
Using binary package database: /usr/local/lib/ghc-7.6.2/package.conf.d/package.cache
Using binary package database: /Users/carter/.ghc/x86_64-darwin-7.6.2/package.conf.d/package.cache
Using package config file: dist/package.conf.inplace
package Cabal-1.17.0-38434fa60f61a5b61574f6aba8367e79 is shadowed by package Cabal-1.17.0-b9e1bc8708d659bcedd2261fc5afabdc
wired-in package ghc-prim mapped to ghc-prim-0.3.0.0-bd1d393903577692a5ef2aa7027b71f6
wired-in package integer-gmp mapped to integer-gmp-0.5.0.0-49dcb29a60dab14e03e6dd01e871a242
wired-in package base mapped to base-4.6.0.1-2514ecbfe6573e639515d3e91d6e1f29
wired-in package rts mapped to builtin_rts
wired-in package template-haskell mapped to template-haskell-2.8.0.0-0ad833f8876aca146ee7fa686b5bc01a
wired-in package dph-seq not found.
wired-in package dph-par not found.
Hsc static flags: -static -static
*** Chasing dependencies:
Chasing modules from: *src/main.hs
Stable obj: []
Stable BCO: []
Ready for upsweep
  [NONREC
      ModSummary {
         ms_hs_date = 2013-05-21 18:00:15 UTC
         ms_mod = main:Main,
         ms_textual_imps = [import (implicit) Prelude,
                            import qualified Data.Vector.Storable as S, import Foreign.C.Types,
                            import Foreign (), import Foreign.Ptr,
                            import qualified Data.Vector.Storable.Mutable as SM]
         ms_srcimps = []
      }]
*** Deleting temp files:
Deleting: 
compile: input file src/main.hs
Created temporary directory: /var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13446_0
*** Checking old interface for main:Main:
[1 of 1] Compiling Main             ( src/main.hs, dist/build/test/test-tmp/Main.o )
*** Parser:
*** Renamer/typechecker:
*** Desugar:
Result size of Desugar (after optimization)
  = {terms: 140, types: 153, coercions: 26}
*** Simplifier:
Result size of Simplifier iteration=1
  = {terms: 168, types: 187, coercions: 45}
Result size of Simplifier iteration=2
  = {terms: 156, types: 191, coercions: 45}
Result size of Simplifier iteration=3
  = {terms: 152, types: 182, coercions: 45}
Result size of Simplifier = {terms: 152, types: 182, coercions: 45}
*** Specialise:
Result size of Specialise = {terms: 152, types: 182, coercions: 45}
*** Float out(FOS {Lam = Just 0, Consts = True, PAPs = False}):
Result size of Float out(FOS {Lam = Just 0,
                              Consts = True,
                              PAPs = False})
  = {terms: 194, types: 254, coercions: 45}
*** Float inwards:
Result size of Float inwards
  = {terms: 194, types: 254, coercions: 45}
*** Simplifier:
Result size of Simplifier iteration=1
  = {terms: 552, types: 698, coercions: 291}
Result size of Simplifier iteration=2
  = {terms: 338, types: 346, coercions: 69}
Result size of Simplifier iteration=3
  = {terms: 315, types: 309, coercions: 59}
Result size of Simplifier iteration=4
  = {terms: 315, types: 309, coercions: 59}
Result size of Simplifier = {terms: 315, types: 309, coercions: 59}
*** Simplifier:
Result size of Simplifier iteration=1
  = {terms: 289, types: 278, coercions: 59}
Result size of Simplifier = {terms: 289, types: 278, coercions: 59}
*** Simplifier:
Result size of Simplifier iteration=1
  = {terms: 301, types: 306, coercions: 115}
Result size of Simplifier iteration=2
  = {terms: 233, types: 226, coercions: 45}
Result size of Simplifier = {terms: 233, types: 226, coercions: 45}
*** Demand analysis:
Result size of Demand analysis
  = {terms: 233, types: 226, coercions: 45}
*** Worker Wrapper binds:
Result size of Worker Wrapper binds
  = {terms: 233, types: 226, coercions: 45}
*** Simplifier:
Result size of Simplifier = {terms: 233, types: 226, coercions: 45}
*** Float out(FOS {Lam = Just 0, Consts = True, PAPs = True}):
Result size of Float out(FOS {Lam = Just 0,
                              Consts = True,
                              PAPs = True})
  = {terms: 235, types: 228, coercions: 45}
*** Common sub-expression:
Result size of Common sub-expression
  = {terms: 235, types: 228, coercions: 45}
*** Float inwards:
Result size of Float inwards
  = {terms: 235, types: 228, coercions: 45}
*** Simplifier:
Result size of Simplifier = {terms: 235, types: 228, coercions: 45}
*** Tidy Core:
Result size of Tidy Core = {terms: 235, types: 228, coercions: 45}
writeBinIface: 13 Names
writeBinIface: 62 dict entries
*** CorePrep:
Result size of CorePrep = {terms: 263, types: 254, coercions: 45}
*** Stg2Stg:
*** CodeOutput:
*** CodeGen:
*** LlVM CodeGen:
You are using a new version of LLVM that hasn't been tested yet!
We will try though...
*** LLVM Optimiser:
'opt' '/var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13446_0/ghc13446_0.ll' '-o' '/var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13446_0/ghc13446_0.bc' '-O1' '--enable-tbaa=true'
*** LLVM Compiler:
'llc' '-O2' '-relocation-model=pic' '/var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13446_0/ghc13446_0.bc' '-o' '/var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13446_0/ghc13446_0.lm_s' '--enable-tbaa=true'
*** LlVM Mangler:
*** Clang (Assembler):
'clang' '-m64' '-Isrc' '-Idist/build/test/test-tmp' '-Idist/build/autogen' '-Idist/build/test/test-tmp' '-c' '/var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13446_0/ghc13446_0.s' '-o' 'dist/build/test/test-tmp/Main.o'
Upsweep completely successful.
*** Deleting temp files:
Deleting: /var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13446_0/ghc13446_0.s /var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13446_0/ghc13446_0.lm_s /var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13446_0/ghc13446_0.bc /var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13446_0/ghc13446_0.c /var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13446_0/ghc13446_0.ll
Warning: deleting non-existent /var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13446_0/ghc13446_0.c
*** Deleting temp files:
Deleting: 
*** Deleting temp dirs:
Deleting: /var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13446_0
Building C Sources...
creating dist/build/test/test-tmp
("/usr/local/bin/ghc",["-c","-v","-static","-odir","dist/build/test/test-tmp","-Idist/build/test/test-tmp","-optc-march=native","-optc-O3","-optc-O2","-package-db","dist/package.conf.inplace","-package-id","base-4.6.0.1-2514ecbfe6573e639515d3e91d6e1f29","-package-id","vector-0.10.0.1-04d4a4538e7c444d2821bb98877cda5f","cbits/daft.c"])
Glasgow Haskell Compiler, Version 7.6.2, stage 2 booted by GHC version 7.4.2
Using binary package database: /usr/local/lib/ghc-7.6.2/package.conf.d/package.cache
Using binary package database: /Users/carter/.ghc/x86_64-darwin-7.6.2/package.conf.d/package.cache
Using package config file: dist/package.conf.inplace
package Cabal-1.17.0-38434fa60f61a5b61574f6aba8367e79 is shadowed by package Cabal-1.17.0-b9e1bc8708d659bcedd2261fc5afabdc
hiding package hashable-1.1.2.5 to avoid conflict with later version hashable-1.2.0.5
hiding package unordered-containers-0.2.3.0 to avoid conflict with later version unordered-containers-0.2.3.1
wired-in package ghc-prim mapped to ghc-prim-0.3.0.0-bd1d393903577692a5ef2aa7027b71f6
wired-in package integer-gmp mapped to integer-gmp-0.5.0.0-49dcb29a60dab14e03e6dd01e871a242
wired-in package base mapped to base-4.6.0.1-2514ecbfe6573e639515d3e91d6e1f29
wired-in package rts mapped to builtin_rts
wired-in package template-haskell mapped to template-haskell-2.8.0.0-0ad833f8876aca146ee7fa686b5bc01a
wired-in package dph-seq not found.
wired-in package dph-par not found.
Hsc static flags: -static -static
Created temporary directory: /var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13454_0
*** C Compiler:
'clang' '-m64' '-fno-stack-protector' '-m64' '-x' 'c' 'cbits/daft.c' '-o' '/var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13454_0/ghc13454_0.s' '-fno-common' '-U __PIC__' '-D__PIC__' '-Wimplicit' '-S' '-O' '-D__GLASGOW_HASKELL__=706' '-DTABLES_NEXT_TO_CODE' '-march=native' '-O3' '-O2' '-I' 'dist/build/test/test-tmp' '-I' '/Users/carter/Library/Haskell//lib/x86_64-osx-ghc-7.6.2/vector-0.10.0.1/include' '-I' '/Users/carter/Library/Haskell//lib/x86_64-osx-ghc-7.6.2/primitive-0.5.0.1/include' '-I' '/usr/local/lib/ghc-7.6.2/base-4.6.0.1/include' '-I' '/usr/local/lib/ghc-7.6.2/include'
*** Assembler:
'clang' '-m64' '-fno-stack-protector' '-m64' '-Idist/build/test/test-tmp' '-c' '/var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13454_0/ghc13454_0.s' '-o' 'dist/build/test/test-tmp/cbits/daft.o'
*** Deleting temp files:
Deleting: /var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13454_0/ghc13454_0.s
*** Deleting temp dirs:
Deleting: /var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13454_0
Linking...
("/usr/local/bin/ghc",["--make","-v","-fbuilding-cabal-package","-O","-static","-odir","dist/build/test/test-tmp","-hidir","dist/build/test/test-tmp","-stubdir","dist/build/test/test-tmp","-i","-idist/build/test/test-tmp","-isrc","-idist/build/autogen","-Idist/build/autogen","-Idist/build/test/test-tmp","-optP-include","-optPdist/build/autogen/cabal_macros.h","-hide-all-packages","-package-db","dist/package.conf.inplace","-package-id","base-4.6.0.1-2514ecbfe6573e639515d3e91d6e1f29","-package-id","vector-0.10.0.1-04d4a4538e7c444d2821bb98877cda5f","-XHaskell2010","src/main.hs","dist/build/test/test-tmp/cbits/daft.o","-o","dist/build/test/test","-fllvm","-v","-pgma","clang","-pgmc","clang","-pgml","clang","-opta","-mavx","-opta","-march=native","-optc","-mavx","-optc","-march=native","-optc","-O2"])
Glasgow Haskell Compiler, Version 7.6.2, stage 2 booted by GHC version 7.4.2
Using binary package database: /usr/local/lib/ghc-7.6.2/package.conf.d/package.cache
Using binary package database: /Users/carter/.ghc/x86_64-darwin-7.6.2/package.conf.d/package.cache
Using package config file: dist/package.conf.inplace
package Cabal-1.17.0-38434fa60f61a5b61574f6aba8367e79 is shadowed by package Cabal-1.17.0-b9e1bc8708d659bcedd2261fc5afabdc
wired-in package ghc-prim mapped to ghc-prim-0.3.0.0-bd1d393903577692a5ef2aa7027b71f6
wired-in package integer-gmp mapped to integer-gmp-0.5.0.0-49dcb29a60dab14e03e6dd01e871a242
wired-in package base mapped to base-4.6.0.1-2514ecbfe6573e639515d3e91d6e1f29
wired-in package rts mapped to builtin_rts
wired-in package template-haskell mapped to template-haskell-2.8.0.0-0ad833f8876aca146ee7fa686b5bc01a
wired-in package dph-seq not found.
wired-in package dph-par not found.
Hsc static flags: -static -static
*** Chasing dependencies:
Chasing modules from: *src/main.hs
Stable obj: [Main]
Stable BCO: []
Ready for upsweep
  [NONREC
      ModSummary {
         ms_hs_date = 2013-05-21 18:00:15 UTC
         ms_mod = main:Main,
         ms_textual_imps = [import (implicit) Prelude,
                            import qualified Data.Vector.Storable as S, import Foreign.C.Types,
                            import Foreign (), import Foreign.Ptr,
                            import qualified Data.Vector.Storable.Mutable as SM]
         ms_srcimps = []
      }]
*** Deleting temp files:
Deleting: 
compile: input file src/main.hs
Created temporary directory: /var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13460_0
*** Checking old interface for main:Main:
[1 of 1] Skipping  Main             ( src/main.hs, dist/build/test/test-tmp/Main.o )
Upsweep completely successful.
*** Deleting temp files:
Deleting: /var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13460_0/ghc13460_0.ll
Warning: deleting non-existent /var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13460_0/ghc13460_0.ll
link: linkables are ...
LinkableM (2013-05-26 03:40:55 UTC) main:Main
   [DotO dist/build/test/test-tmp/Main.o]
Linking dist/build/test/test ...
*** C Compiler:
'clang' '-c' '/var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13460_0/ghc13460_0.c' '-o' '/var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13460_0/ghc13460_0.o' '-DTABLES_NEXT_TO_CODE' '-mavx' '-march=native' '-O2' '-I/usr/local/lib/ghc-7.6.2/include'
*** Linker:
'clang' '-o' 'dist/build/test/test' '-Wl,-no_compact_unwind' 'dist/build/test/test-tmp/Main.o' 'dist/build/test/test-tmp/cbits/daft.o' '-L/Users/carter/Library/Haskell//lib/x86_64-osx-ghc-7.6.2/vector-0.10.0.1' '-L/Users/carter/Library/Haskell//lib/x86_64-osx-ghc-7.6.2/primitive-0.5.0.1' '-L/usr/local/lib/ghc-7.6.2/deepseq-1.3.0.1' '-L/usr/local/lib/ghc-7.6.2/array-0.4.0.1' '-L/usr/local/lib/ghc-7.6.2/base-4.6.0.1' '-L/usr/local/lib/ghc-7.6.2/integer-gmp-0.5.0.0' '-L/usr/local/lib/ghc-7.6.2/ghc-prim-0.3.0.0' '-L/usr/local/lib/ghc-7.6.2' '/var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13460_0/ghc13460_0.o' '-lHSvector-0.10.0.1' '-lHSprimitive-0.5.0.1' '-lHSdeepseq-1.3.0.1' '-lHSarray-0.4.0.1' '-lHSbase-4.6.0.1' '-liconv' '-lHSinteger-gmp-0.5.0.0' '-lHSghc-prim-0.3.0.0' '-lHSrts' '-lm' '-ldl' '-u' '_ghczmprim_GHCziTypes_Izh_static_info' '-u' '_ghczmprim_GHCziTypes_Czh_static_info' '-u' '_ghczmprim_GHCziTypes_Fzh_static_info' '-u' '_ghczmprim_GHCziTypes_Dzh_static_info' '-u' '_base_GHCziPtr_Ptr_static_info' '-u' '_ghczmprim_GHCziTypes_Wzh_static_info' '-u' '_base_GHCziInt_I8zh_static_info' '-u' '_base_GHCziInt_I16zh_static_info' '-u' '_base_GHCziInt_I32zh_static_info' '-u' '_base_GHCziInt_I64zh_static_info' '-u' '_base_GHCziWord_W8zh_static_info' '-u' '_base_GHCziWord_W16zh_static_info' '-u' '_base_GHCziWord_W32zh_static_info' '-u' '_base_GHCziWord_W64zh_static_info' '-u' '_base_GHCziStable_StablePtr_static_info' '-u' '_ghczmprim_GHCziTypes_Izh_con_info' '-u' '_ghczmprim_GHCziTypes_Czh_con_info' '-u' '_ghczmprim_GHCziTypes_Fzh_con_info' '-u' '_ghczmprim_GHCziTypes_Dzh_con_info' '-u' '_base_GHCziPtr_Ptr_con_info' '-u' '_base_GHCziPtr_FunPtr_con_info' '-u' '_base_GHCziStable_StablePtr_con_info' '-u' '_ghczmprim_GHCziTypes_False_closure' '-u' '_ghczmprim_GHCziTypes_True_closure' '-u' '_base_GHCziPack_unpackCString_closure' '-u' '_base_GHCziIOziException_stackOverflow_closure' '-u' '_base_GHCziIOziException_heapOverflow_closure' '-u' '_base_ControlziExceptionziBase_nonTermination_closure' '-u' '_base_GHCziIOziException_blockedIndefinitelyOnMVar_closure' '-u' '_base_GHCziIOziException_blockedIndefinitelyOnSTM_closure' '-u' '_base_ControlziExceptionziBase_nestedAtomically_closure' '-u' '_base_GHCziWeak_runFinalizzerBatch_closure' '-u' '_base_GHCziTopHandler_flushStdHandles_closure' '-u' '_base_GHCziTopHandler_runIO_closure' '-u' '_base_GHCziTopHandler_runNonIO_closure' '-u' '_base_GHCziConcziIO_ensureIOManagerIsRunning_closure' '-u' '_base_GHCziConcziSync_runSparks_closure' '-u' '_base_GHCziConcziSignal_runHandlers_closure' '-Wl,-search_paths_first'
link: done
*** Deleting temp files:
Deleting: /var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13460_0/ghc13460_0.o /var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13460_0/ghc13460_0.c
*** Deleting temp dirs:
Deleting: /var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc13460_0

closed

Aha, thanks for your diagnosis work. However, it looks like the problem here is either a Cabal bug, or a problem in your .cabal file. The output shows that Cabal is calling ghc like this:

("/usr/local/bin/ghc",["-c","-v","-static","-odir","dist/build/test/test-tmp","-Idist/build/test/test-tmp","-optc-march=native","-optc-O3","-optc-O2","-package-db","dist/package.conf.inplace","-package-id","base-4.6.0.1-2514ecbfe6573e639515d3e91d6e1f29","-package-id","vector-0.10.0.1-04d4a4538e7c444d2821bb98877cda5f","cbits/daft.c"])

Note that it is not passing the -pgm* flags in this call.

If you think it's a Cabal bug, then you can file a ticket in their bug tracker here: https://github.com/haskell/cabal/issues

Trac metadata

Trac field	Value
Resolution	Unresolved → ResolvedInvalid

Thanks for your patience Ian, and yes, I now agree its a cabal bug! :)

I can cook up a sanish work around for my library work, but i'll now push on the cabal people to sort this out.

again, thanks for being patient with me

mentioned in issue #15319 (closed)

added Pnormal label