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28 lines
1007 B
LLVM
28 lines
1007 B
LLVM
; RUN: llc < %s -o - -mtriple=x86_64-linux | FileCheck %s
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; RUN: llc < %s -o - -mtriple=x86_64-win32 | FileCheck %s -check-prefix=WIN64
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; PR4891
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; Both loads should happen before either store.
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; CHECK: movl (%rdi), %[[R1:...]]
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; CHECK: movl (%rsi), %[[R2:...]]
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; CHECK: movl %[[R2]], (%rdi)
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; CHECK: movl %[[R1]], (%rsi)
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; WIN64: movl (%rcx), %[[R1:...]]
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; WIN64: movl (%rdx), %[[R2:...]]
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; WIN64: movl %[[R2]], (%rcx)
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; WIN64: movl %[[R1]], (%rdx)
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define void @short2_int_swap(<2 x i16>* nocapture %b, i32* nocapture %c) nounwind {
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entry:
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%0 = load <2 x i16>* %b, align 2 ; <<2 x i16>> [#uses=1]
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%1 = load i32* %c, align 4 ; <i32> [#uses=1]
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%tmp1 = bitcast i32 %1 to <2 x i16> ; <<2 x i16>> [#uses=1]
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store <2 x i16> %tmp1, <2 x i16>* %b, align 2
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%tmp5 = bitcast <2 x i16> %0 to <1 x i32> ; <<1 x i32>> [#uses=1]
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%tmp3 = extractelement <1 x i32> %tmp5, i32 0 ; <i32> [#uses=1]
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store i32 %tmp3, i32* %c, align 4
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ret void
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}
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