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f633d550ca
If a vector index is out of bounds, the result is supposed to be undefined but is not undefined behavior. Change the legalization for indexing the vector on the stack so that an out of bounds index does not create an out of bounds memory access. llvm-svn: 291604
119 lines
3.6 KiB
LLVM
119 lines
3.6 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=i386-unknown -mattr=+sse4.1 | FileCheck %s --check-prefix=X32
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; RUN: llc < %s -mtriple=x86_64-unknown -mattr=+sse4.1 | FileCheck %s --check-prefix=X64
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; Inserts and extracts with variable indices must be lowered
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; to memory accesses.
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define i32 @t0(i32 inreg %t7, <4 x i32> inreg %t8) nounwind {
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; X32-LABEL: t0:
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; X32: # BB#0:
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; X32-NEXT: pushl %ebp
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; X32-NEXT: movl %esp, %ebp
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; X32-NEXT: andl $-16, %esp
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; X32-NEXT: subl $32, %esp
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; X32-NEXT: andl $3, %eax
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; X32-NEXT: movaps %xmm0, (%esp)
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; X32-NEXT: movl $76, (%esp,%eax,4)
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; X32-NEXT: movl (%esp), %eax
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; X32-NEXT: movl %ebp, %esp
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; X32-NEXT: popl %ebp
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; X32-NEXT: retl
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;
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; X64-LABEL: t0:
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; X64: # BB#0:
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; X64-NEXT: # kill: %EDI<def> %EDI<kill> %RDI<def>
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; X64-NEXT: movaps %xmm0, -{{[0-9]+}}(%rsp)
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; X64-NEXT: andl $3, %edi
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; X64-NEXT: movl $76, -24(%rsp,%rdi,4)
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; X64-NEXT: movl -{{[0-9]+}}(%rsp), %eax
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; X64-NEXT: retq
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%t13 = insertelement <4 x i32> %t8, i32 76, i32 %t7
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%t9 = extractelement <4 x i32> %t13, i32 0
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ret i32 %t9
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}
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define i32 @t1(i32 inreg %t7, <4 x i32> inreg %t8) nounwind {
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; X32-LABEL: t1:
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; X32: # BB#0:
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; X32-NEXT: pushl %ebp
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; X32-NEXT: movl %esp, %ebp
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; X32-NEXT: andl $-16, %esp
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; X32-NEXT: subl $32, %esp
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; X32-NEXT: andl $3, %eax
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; X32-NEXT: movl $76, %ecx
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; X32-NEXT: pinsrd $0, %ecx, %xmm0
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; X32-NEXT: movdqa %xmm0, (%esp)
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; X32-NEXT: movl (%esp,%eax,4), %eax
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; X32-NEXT: movl %ebp, %esp
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; X32-NEXT: popl %ebp
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; X32-NEXT: retl
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;
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; X64-LABEL: t1:
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; X64: # BB#0:
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; X64-NEXT: # kill: %EDI<def> %EDI<kill> %RDI<def>
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; X64-NEXT: movl $76, %eax
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; X64-NEXT: pinsrd $0, %eax, %xmm0
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; X64-NEXT: movdqa %xmm0, -{{[0-9]+}}(%rsp)
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; X64-NEXT: andl $3, %edi
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; X64-NEXT: movl -24(%rsp,%rdi,4), %eax
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; X64-NEXT: retq
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%t13 = insertelement <4 x i32> %t8, i32 76, i32 0
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%t9 = extractelement <4 x i32> %t13, i32 %t7
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ret i32 %t9
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}
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define <4 x i32> @t2(i32 inreg %t7, <4 x i32> inreg %t8) nounwind {
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; X32-LABEL: t2:
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; X32: # BB#0:
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; X32-NEXT: pushl %ebp
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; X32-NEXT: movl %esp, %ebp
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; X32-NEXT: andl $-16, %esp
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; X32-NEXT: subl $32, %esp
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; X32-NEXT: andl $3, %eax
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; X32-NEXT: movdqa %xmm0, (%esp)
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; X32-NEXT: pinsrd $0, (%esp,%eax,4), %xmm0
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; X32-NEXT: movl %ebp, %esp
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; X32-NEXT: popl %ebp
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; X32-NEXT: retl
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;
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; X64-LABEL: t2:
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; X64: # BB#0:
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; X64-NEXT: # kill: %EDI<def> %EDI<kill> %RDI<def>
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; X64-NEXT: movdqa %xmm0, -{{[0-9]+}}(%rsp)
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; X64-NEXT: andl $3, %edi
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; X64-NEXT: pinsrd $0, -24(%rsp,%rdi,4), %xmm0
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; X64-NEXT: retq
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%t9 = extractelement <4 x i32> %t8, i32 %t7
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%t13 = insertelement <4 x i32> %t8, i32 %t9, i32 0
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ret <4 x i32> %t13
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}
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define <4 x i32> @t3(i32 inreg %t7, <4 x i32> inreg %t8) nounwind {
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; X32-LABEL: t3:
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; X32: # BB#0:
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; X32-NEXT: pushl %ebp
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; X32-NEXT: movl %esp, %ebp
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; X32-NEXT: andl $-16, %esp
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; X32-NEXT: subl $32, %esp
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; X32-NEXT: andl $3, %eax
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; X32-NEXT: movaps %xmm0, (%esp)
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; X32-NEXT: movss %xmm0, (%esp,%eax,4)
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; X32-NEXT: movaps (%esp), %xmm0
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; X32-NEXT: movl %ebp, %esp
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; X32-NEXT: popl %ebp
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; X32-NEXT: retl
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;
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; X64-LABEL: t3:
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; X64: # BB#0:
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; X64-NEXT: # kill: %EDI<def> %EDI<kill> %RDI<def>
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; X64-NEXT: movaps %xmm0, -{{[0-9]+}}(%rsp)
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; X64-NEXT: andl $3, %edi
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; X64-NEXT: movss %xmm0, -24(%rsp,%rdi,4)
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; X64-NEXT: movaps -{{[0-9]+}}(%rsp), %xmm0
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; X64-NEXT: retq
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%t9 = extractelement <4 x i32> %t8, i32 0
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%t13 = insertelement <4 x i32> %t8, i32 %t9, i32 %t7
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ret <4 x i32> %t13
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}
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