[LLVMbugs] [Bug 22347] New: ICE when generating XOP code for integer

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=22347

            Bug ID: 22347
           Summary: ICE when generating XOP code for integer
           Product: clang
           Version: 3.5
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: -New Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: joel.falcou at numscale.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

While compiling Boost.SIMD unti test on a XOP machine (see spec here
https://gist.github.com/jfalcou/7003868d2e71eba5c03a), clang-3.5 from Debian
repository ICE with the following message :

fatal error: error in backend: Cannot select: 0x8826330: v4i32 = BUILD_VECTOR
0x9bbb9d0, 0x9bbb9d0, 0x9bbb9d0, 0x9bbb9d0 [ORD=36] [ID=34]
  0x9bbb9d0: i32 = Constant<1> [ID=29]
  0x9bbb9d0: i32 = Constant<1> [ID=29]
  0x9bbb9d0: i32 = Constant<1> [ID=29]
  0x9bbb9d0: i32 = Constant<1> [ID=29]
In function: _Z24test_main_sqr_signed_intv

The boost::simd::sqr function just performs the equivalent of multiplying a
SIMD vector with itself.

The preprocessed output + .sh from clang output is 18Mb and is available here :

https://dl.dropboxusercontent.com/u/3819406/clang-xop-sqr.tgz

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