[Bug 977652] New: ghc fails to compile files using llvm-3.3 on ARM

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=977652

Bug ID: 977652
           Summary: ghc fails to compile files using llvm-3.3 on ARM
           Product: Fedora
           Version: 19
         Component: ghc
          Severity: unspecified
          Priority: unspecified
          Assignee: [e-mail]
          Reporter: [e-mail]
        QA Contact: [e-mail]
                CC: [e-mail],
                    [e-mail],
                    [e-mail]

Description of problem:
ghc < 7.8 (unreleased) seems not to support llvm > 3.2.

Version-Release number of selected component (if applicable):
ghc-7.4.2
llvm-3.3-rc

How reproducible:
100%

Steps to Reproduce:
1. try to build a haskell package on F19 ARM with llvm-3.3pre

Actual results:
+ ghc --make -no-user-package-conf Setup
[1 of 1] Compiling Main             ( Setup.hs, Setup.o )
wrong initalizer for intrinsic global variable
[0 x i8*] undef
Broken module found, compilation aborted!
0  libLLVM-3.3.so 0xb5e4f4f8 llvm::sys::PrintStackTrace(_IO_FILE*) + 36
1  libLLVM-3.3.so 0xb5e4f2d8
2  libc.so.6      0xb595ec60 __default_sa_restorer_v2 + 0
3  libc.so.6      0xb595d854 gsignal + 52
4  libc.so.6      0xb595ee54 abort + 408
5  libLLVM-3.3.so 0xb649580c
6  libLLVM-3.3.so 0xb649c4f4
7  libLLVM-3.3.so 0xb647828c llvm::FPPassManager::doFinalization(llvm::Module&)
+ 80
8  libLLVM-3.3.so 0xb647f1b4 llvm::MPPassManager::runOnModule(llvm::Module&) +
640
9  libLLVM-3.3.so 0xb647f2f0 llvm::PassManagerImpl::run(llvm::Module&) + 152
10 opt            0x0001830c main + 2532
11 libc.so.6      0xb594728c __libc_start_main + 276
Stack dump:
0.    Program arguments: opt /tmp/ghc2007_0/ghc2007_0.ll -o
/tmp/ghc2007_0/ghc2007_0.bc -mem2reg 
llc: /tmp/ghc2007_0/ghc2007_0.bc: error: Could not open input file: No such
file or directory

Expected results:
No error

Additional info:
http://hackage.haskell.org/trac/ghc/ticket/7996
There seems to be a fix for this for ghc-7.8 (commit db9b63105a54),
which we can try test and backport.