[LLVMbugs] [Bug 10493] New: [AVX] "cannot select" v8f32 = X86ISD::VZEXT_MOVL error

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Tue Jul 26 02:23:55 PDT 2011


           Summary: [AVX] "cannot select" v8f32 = X86ISD::VZEXT_MOVL error
           Product: new-bugs
           Version: trunk
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: new bugs
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: matt at pharr.org
                CC: llvmbugs at cs.uiuc.edu

Created an attachment (id=6941)
 --> (http://llvm.org/bugs/attachment.cgi?id=6941)
test case

WIth the attached test case, if I run:

% llc bug.ll -o /dev/null -mcpu=corei7-avx -mattr=+avx

I get the following crash:

LLVM ERROR: Cannot select: 0x7fe7fb043610: v8f32 = X86ISD::VZEXT_MOVL
0x7fe7fb043510 [ID=38]
  0x7fe7fb043510: v8f32 = insert_subvector 0x7fe7fb043410, 0x7fe7fb043310,
0x7fe7fb036610 [ID=37]
    0x7fe7fb043410: v8f32 = undef [ID=15]
    0x7fe7fb043310: v4f32 = scalar_to_vector 0x7fe7fb03fb10 [ID=36]
      0x7fe7fb03fb10: f32,ch = load 0x107010cf8, 0x7fe7fb042d10,
0x7fe7fb03fc10<LD4[ConstantPool]> [ID=35]
        0x7fe7fb042d10: i64 = X86ISD::WrapperRIP 0x7fe7fb03ff10 [ID=32]
          0x7fe7fb03ff10: i64 = TargetConstantPool<float 0xC61E1E1E00000000> 0
        0x7fe7fb03fc10: i64 = undef [ID=12]
    0x7fe7fb036610: i32 = Constant<0> [ORD=14] [ID=5]

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