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Imported Upstream version 5.18.0.205

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Former-commit-id: 7f59f7e792705db773f1caecdaa823092f4e2927
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Xamarin Public Jenkins (auto-signing)
2018-11-16 08:20:38 +00:00
parent 5cd5df71cc
commit 8e12397d70
28486 changed files with 3867013 additions and 66 deletions
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37
external/llvm/test/Transforms/InstCombine/memcpy.ll vendored Normal file
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@ -0,0 +1,37 @@
; RUN: opt < %s -instcombine -S | FileCheck %s
declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i32, i1) nounwind
declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) nounwind
; Same src/dest.
define void @test1(i8* %a) {
; CHECK-LABEL: @test1(
; CHECK-NEXT: ret void
;
tail call void @llvm.memcpy.p0i8.p0i8.i32(i8* %a, i8* %a, i32 100, i32 1, i1 false)
ret void
}
; PR8267 - same src/dest, but volatile.
define void @test2(i8* %a) {
; CHECK-LABEL: @test2(
; CHECK-NEXT: tail call void @llvm.memcpy.p0i8.p0i8.i32(i8* %a, i8* %a, i32 100, i32 1, i1 true)
; CHECK-NEXT: ret void
;
tail call void @llvm.memcpy.p0i8.p0i8.i32(i8* %a, i8* %a, i32 100, i32 1, i1 true)
ret void
}
; 17179869184 == 0x400000000 - make sure that doesn't get truncated to 32-bit.
define void @test3(i8* %d, i8* %s) {
; CHECK-LABEL: @test3(
; CHECK-NEXT: tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %d, i8* %s, i64 17179869184, i32 4, i1 false)
; CHECK-NEXT: ret void
;
tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %d, i8* %s, i64 17179869184, i32 4, i1 false)
ret void
}