forked from OSchip/llvm-project
45 lines
1.7 KiB
LLVM
45 lines
1.7 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=i686-unknown -mcpu=pentium4 | FileCheck %s
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%struct.Foo = type { i32, %struct.Bar }
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%struct.Bar = type { i32, %struct.Buffer, i32 }
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%struct.Buffer = type { i8*, i32 }
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; This test checks that the load of store %2 is not dropped.
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;
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define i32 @pr34088() local_unnamed_addr {
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; CHECK-LABEL: pr34088:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: pushl %ebp
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; CHECK-NEXT: .cfi_def_cfa_offset 8
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; CHECK-NEXT: .cfi_offset %ebp, -8
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; CHECK-NEXT: movl %esp, %ebp
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; CHECK-NEXT: .cfi_def_cfa_register %ebp
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; CHECK-NEXT: andl $-16, %esp
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; CHECK-NEXT: subl $32, %esp
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; CHECK-NEXT: xorps %xmm0, %xmm0
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; CHECK-NEXT: movaps {{.*#+}} xmm1 = [205,205,205,205,205,205,205,205,205,205,205,205,205,205,205,205]
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; CHECK-NEXT: xorl %eax, %eax
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; CHECK-NEXT: movaps %xmm0, (%esp)
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; CHECK-NEXT: movsd {{.*#+}} xmm0 = mem[0],zero
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; CHECK-NEXT: movl $-842150451, {{[0-9]+}}(%esp) # imm = 0xCDCDCDCD
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; CHECK-NEXT: movaps %xmm1, (%esp)
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; CHECK-NEXT: movsd %xmm0, {{[0-9]+}}(%esp)
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; CHECK-NEXT: movl %ebp, %esp
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; CHECK-NEXT: popl %ebp
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; CHECK-NEXT: .cfi_def_cfa %esp, 4
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; CHECK-NEXT: retl
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entry:
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%foo = alloca %struct.Foo, align 4
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%0 = bitcast %struct.Foo* %foo to i8*
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call void @llvm.memset.p0i8.i32(i8* align 4 nonnull %0, i8 0, i32 20, i1 false)
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%buffer1 = getelementptr inbounds %struct.Foo, %struct.Foo* %foo, i32 0, i32 1, i32 1
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%1 = bitcast %struct.Buffer* %buffer1 to i64*
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%2 = load i64, i64* %1, align 4
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call void @llvm.memset.p0i8.i32(i8* align 4 nonnull %0, i8 -51, i32 20, i1 false)
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store i64 %2, i64* %1, align 4
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ret i32 0
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}
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declare void @llvm.memset.p0i8.i32(i8* nocapture writeonly, i8, i32, i1)
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