forked from OSchip/llvm-project
21 lines
806 B
LLVM
21 lines
806 B
LLVM
; RUN: opt < %s -instcombine -S | FileCheck %s
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target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
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target triple = "i686-apple-darwin8"
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; Make sure that the memcpy has been replaced with a load/store of i64.
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define void @foo(i8* %d, i8* %s) {
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; CHECK-LABEL: @foo(
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; CHECK-NEXT: [[TMP1:%.*]] = bitcast i8* %s to i64*
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; CHECK-NEXT: [[TMP2:%.*]] = bitcast i8* %d to i64*
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; CHECK-NEXT: [[TMP3:%.*]] = load i64, i64* [[TMP1]], align 1
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; CHECK-NEXT: store i64 [[TMP3]], i64* [[TMP2]], align 1
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; CHECK-NEXT: ret void
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;
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call void @llvm.memcpy.p0i8.p0i8.i32(i8* %d, i8* %s, i32 8, i32 1, i1 false)
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ret void
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}
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declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i32, i1) nounwind
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