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ca0f4dc4f0
This commit starts with a "git mv ARM64 AArch64" and continues out from there, renaming the C++ classes, intrinsics, and other target-local objects for consistency. "ARM64" test directories are also moved, and tests that began their life in ARM64 use an arm64 triple, those from AArch64 use an aarch64 triple. Both should be equivalent though. This finishes the AArch64 merge, and everyone should feel free to continue committing as normal now. llvm-svn: 209577
109 lines
3.0 KiB
LLVM
109 lines
3.0 KiB
LLVM
; RUN: llc %s -mtriple=arm64-apple-darwin -o - | \
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; RUN: FileCheck --check-prefix=CHECK-DARWIN --check-prefix=CHECK %s
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; RUN: llc %s -mtriple=arm64-linux-gnu -o - | \
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; RUN: FileCheck --check-prefix=CHECK-LINUX --check-prefix=CHECK %s
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; <rdar://problem/14199482> ARM64: Calls to bzero() replaced with calls to memset()
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; CHECK: @fct1
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; For small size (<= 256), we do not change memset to bzero.
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; CHECK: memset
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define void @fct1(i8* nocapture %ptr) {
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entry:
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tail call void @llvm.memset.p0i8.i64(i8* %ptr, i8 0, i64 256, i32 1, i1 false)
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ret void
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}
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declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1)
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; CHECK: @fct2
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; When the size is bigger than 256, change into bzero.
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; CHECK-DARWIN: bzero
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; CHECK-LINUX: memset
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define void @fct2(i8* nocapture %ptr) {
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entry:
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tail call void @llvm.memset.p0i8.i64(i8* %ptr, i8 0, i64 257, i32 1, i1 false)
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ret void
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}
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; CHECK: @fct3
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; For unknown size, change to bzero.
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; CHECK-DARWIN: bzero
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; CHECK-LINUX: memset
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define void @fct3(i8* nocapture %ptr, i32 %unknown) {
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entry:
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%conv = sext i32 %unknown to i64
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tail call void @llvm.memset.p0i8.i64(i8* %ptr, i8 0, i64 %conv, i32 1, i1 false)
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ret void
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}
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; CHECK: @fct4
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; Size <= 256, no change.
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; CHECK: memset
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define void @fct4(i8* %ptr) {
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entry:
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%tmp = tail call i64 @llvm.objectsize.i64(i8* %ptr, i1 false)
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%call = tail call i8* @__memset_chk(i8* %ptr, i32 0, i64 256, i64 %tmp)
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ret void
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}
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declare i8* @__memset_chk(i8*, i32, i64, i64)
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declare i64 @llvm.objectsize.i64(i8*, i1)
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; CHECK: @fct5
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; Size > 256, change.
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; CHECK-DARWIN: bzero
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; CHECK-LINUX: memset
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define void @fct5(i8* %ptr) {
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entry:
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%tmp = tail call i64 @llvm.objectsize.i64(i8* %ptr, i1 false)
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%call = tail call i8* @__memset_chk(i8* %ptr, i32 0, i64 257, i64 %tmp)
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ret void
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}
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; CHECK: @fct6
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; Size = unknown, change.
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; CHECK-DARWIN: bzero
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; CHECK-LINUX: memset
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define void @fct6(i8* %ptr, i32 %unknown) {
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entry:
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%conv = sext i32 %unknown to i64
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%tmp = tail call i64 @llvm.objectsize.i64(i8* %ptr, i1 false)
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%call = tail call i8* @__memset_chk(i8* %ptr, i32 0, i64 %conv, i64 %tmp)
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ret void
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}
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; Next functions check that memset is not turned into bzero
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; when the set constant is non-zero, whatever the given size.
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; CHECK: @fct7
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; memset with something that is not a zero, no change.
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; CHECK: memset
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define void @fct7(i8* %ptr) {
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entry:
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%tmp = tail call i64 @llvm.objectsize.i64(i8* %ptr, i1 false)
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%call = tail call i8* @__memset_chk(i8* %ptr, i32 1, i64 256, i64 %tmp)
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ret void
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}
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; CHECK: @fct8
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; memset with something that is not a zero, no change.
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; CHECK: memset
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define void @fct8(i8* %ptr) {
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entry:
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%tmp = tail call i64 @llvm.objectsize.i64(i8* %ptr, i1 false)
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%call = tail call i8* @__memset_chk(i8* %ptr, i32 1, i64 257, i64 %tmp)
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ret void
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}
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; CHECK: @fct9
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; memset with something that is not a zero, no change.
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; CHECK: memset
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define void @fct9(i8* %ptr, i32 %unknown) {
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entry:
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%conv = sext i32 %unknown to i64
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%tmp = tail call i64 @llvm.objectsize.i64(i8* %ptr, i1 false)
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%call = tail call i8* @__memset_chk(i8* %ptr, i32 1, i64 %conv, i64 %tmp)
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ret void
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}
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