diff options
Diffstat (limited to 'llvm')
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 5 | ||||
| -rw-r--r-- | llvm/test/CodeGen/X86/vec_extract.ll | 66 |
2 files changed, 70 insertions, 1 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index 568a8c4..11ab8dc 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -5001,9 +5001,12 @@ static bool getTargetConstantBitsFromNode(SDValue Op, unsigned EltSizeInBits, EVT VT = Op.getValueType(); unsigned SizeInBits = VT.getSizeInBits(); - assert((SizeInBits % EltSizeInBits) == 0 && "Can't split constant!"); unsigned NumElts = SizeInBits / EltSizeInBits; + // Can't split constant. + if ((SizeInBits % EltSizeInBits) != 0) + return false; + // Bitcast a source array of element bits to the target size. auto CastBitData = [&](APInt &UndefSrcElts, ArrayRef<APInt> SrcEltBits) { unsigned NumSrcElts = UndefSrcElts.getBitWidth(); diff --git a/llvm/test/CodeGen/X86/vec_extract.ll b/llvm/test/CodeGen/X86/vec_extract.ll index 087cd30..9bd38db 100644 --- a/llvm/test/CodeGen/X86/vec_extract.ll +++ b/llvm/test/CodeGen/X86/vec_extract.ll @@ -104,6 +104,72 @@ entry: } declare <2 x double> @foo() +define i64 @pr150117(<31 x i8> %a0) nounwind { +; X86-LABEL: pr150117: +; X86: # %bb.0: +; X86-NEXT: pushl %ebx +; X86-NEXT: pushl %edi +; X86-NEXT: pushl %esi +; X86-NEXT: movzbl {{[0-9]+}}(%esp), %eax +; X86-NEXT: movzbl {{[0-9]+}}(%esp), %ecx +; X86-NEXT: movzbl {{[0-9]+}}(%esp), %esi +; X86-NEXT: movzbl {{[0-9]+}}(%esp), %edi +; X86-NEXT: movzbl {{[0-9]+}}(%esp), %ebx +; X86-NEXT: movl {{[0-9]+}}(%esp), %edx +; X86-NEXT: shll $8, %edx +; X86-NEXT: orl %ebx, %edx +; X86-NEXT: shll $8, %edi +; X86-NEXT: orl %esi, %edi +; X86-NEXT: shll $16, %ecx +; X86-NEXT: orl %edi, %ecx +; X86-NEXT: movl {{[0-9]+}}(%esp), %esi +; X86-NEXT: shll $24, %esi +; X86-NEXT: orl %ecx, %esi +; X86-NEXT: movd %esi, %xmm0 +; X86-NEXT: pinsrw $2, %edx, %xmm0 +; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx +; X86-NEXT: shll $8, %ecx +; X86-NEXT: orl %eax, %ecx +; X86-NEXT: pinsrw $3, %ecx, %xmm0 +; X86-NEXT: movd %xmm0, %eax +; X86-NEXT: pshufd {{.*#+}} xmm0 = xmm0[1,1,1,1] +; X86-NEXT: movd %xmm0, %edx +; X86-NEXT: popl %esi +; X86-NEXT: popl %edi +; X86-NEXT: popl %ebx +; X86-NEXT: retl +; +; X64-LABEL: pr150117: +; X64: # %bb.0: +; X64-NEXT: movzbl {{[0-9]+}}(%rsp), %eax +; X64-NEXT: movzbl {{[0-9]+}}(%rsp), %ecx +; X64-NEXT: movzbl {{[0-9]+}}(%rsp), %edx +; X64-NEXT: movzbl {{[0-9]+}}(%rsp), %esi +; X64-NEXT: movzbl {{[0-9]+}}(%rsp), %edi +; X64-NEXT: movl {{[0-9]+}}(%rsp), %r8d +; X64-NEXT: shll $8, %r8d +; X64-NEXT: orl %edi, %r8d +; X64-NEXT: shll $8, %esi +; X64-NEXT: orl %edx, %esi +; X64-NEXT: shll $16, %ecx +; X64-NEXT: orl %esi, %ecx +; X64-NEXT: movl {{[0-9]+}}(%rsp), %edx +; X64-NEXT: shll $24, %edx +; X64-NEXT: orl %ecx, %edx +; X64-NEXT: movd %edx, %xmm0 +; X64-NEXT: pinsrw $2, %r8d, %xmm0 +; X64-NEXT: movl {{[0-9]+}}(%rsp), %ecx +; X64-NEXT: shll $8, %ecx +; X64-NEXT: orl %eax, %ecx +; X64-NEXT: pinsrw $3, %ecx, %xmm0 +; X64-NEXT: movq %xmm0, %rax +; X64-NEXT: retq + %shuffle = shufflevector <31 x i8> %a0, <31 x i8> zeroinitializer, <32 x i32> <i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison> + %bitcast = bitcast <32 x i8> %shuffle to <4 x i64> + %elt = extractelement <4 x i64> %bitcast, i64 0 + ret i64 %elt +} + ; OSS-Fuzz #15662 ; https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15662 define <4 x i32> @ossfuzz15662(ptr %in) { |