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author | Matthias Braun <matze@braunis.de> | 2017-12-19 00:43:00 +0000 |
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committer | Matthias Braun <matze@braunis.de> | 2017-12-19 00:43:00 +0000 |
commit | e29c0b88628c0f353d2fa1423525fe4acbd7ad67 (patch) | |
tree | 5c980985ab5f8d14a9880fa2ba0b1fb416b73ed4 /llvm/test/CodeGen/AArch64/arm64-memset-to-bzero.ll | |
parent | 92de8b2405b2bdb7e4e27ef95e050273e1a03ea8 (diff) | |
download | bcm5719-llvm-e29c0b88628c0f353d2fa1423525fe4acbd7ad67.tar.gz bcm5719-llvm-e29c0b88628c0f353d2fa1423525fe4acbd7ad67.zip |
TargetLoweringBase: Followup to r321035
I missed some prefixes and the fact that on AArch64 we use "bzero"
instead of "__bzero" as on X86 when doing my refactoring in r321035.
Improve tests for bzero.
llvm-svn: 321046
Diffstat (limited to 'llvm/test/CodeGen/AArch64/arm64-memset-to-bzero.ll')
-rw-r--r-- | llvm/test/CodeGen/AArch64/arm64-memset-to-bzero.ll | 49 |
1 files changed, 27 insertions, 22 deletions
diff --git a/llvm/test/CodeGen/AArch64/arm64-memset-to-bzero.ll b/llvm/test/CodeGen/AArch64/arm64-memset-to-bzero.ll index 29036caabf3..3466e1bace5 100644 --- a/llvm/test/CodeGen/AArch64/arm64-memset-to-bzero.ll +++ b/llvm/test/CodeGen/AArch64/arm64-memset-to-bzero.ll @@ -4,9 +4,10 @@ ; RUN: FileCheck --check-prefix=CHECK-LINUX --check-prefix=CHECK %s ; <rdar://problem/14199482> ARM64: Calls to bzero() replaced with calls to memset() -; CHECK: @fct1 +; CHECK-LABEL: fct1: ; For small size (<= 256), we do not change memset to bzero. -; CHECK: memset +; CHECK-DARWIN: {{b|bl}} _memset +; CHECK-LINUX: {{b|bl}} memset define void @fct1(i8* nocapture %ptr) { entry: tail call void @llvm.memset.p0i8.i64(i8* %ptr, i8 0, i64 256, i32 1, i1 false) @@ -15,20 +16,20 @@ entry: declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1) -; CHECK: @fct2 +; CHECK-LABEL: fct2: ; When the size is bigger than 256, change into bzero. -; CHECK-DARWIN: bzero -; CHECK-LINUX: memset +; CHECK-DARWIN: {{b|bl}} _bzero +; CHECK-LINUX: {{b|bl}} memset define void @fct2(i8* nocapture %ptr) { entry: tail call void @llvm.memset.p0i8.i64(i8* %ptr, i8 0, i64 257, i32 1, i1 false) ret void } -; CHECK: @fct3 +; CHECK-LABEL: fct3: ; For unknown size, change to bzero. -; CHECK-DARWIN: bzero -; CHECK-LINUX: memset +; CHECK-DARWIN: {{b|bl}} _bzero +; CHECK-LINUX: {{b|bl}} memset define void @fct3(i8* nocapture %ptr, i32 %unknown) { entry: %conv = sext i32 %unknown to i64 @@ -36,9 +37,10 @@ entry: ret void } -; CHECK: @fct4 +; CHECK-LABEL: fct4: ; Size <= 256, no change. -; CHECK: memset +; CHECK-DARWIN: {{b|bl}} _memset +; CHECK-LINUX: {{b|bl}} memset define void @fct4(i8* %ptr) { entry: %tmp = tail call i64 @llvm.objectsize.i64(i8* %ptr, i1 false) @@ -50,10 +52,10 @@ declare i8* @__memset_chk(i8*, i32, i64, i64) declare i64 @llvm.objectsize.i64(i8*, i1) -; CHECK: @fct5 +; CHECK-LABEL: fct5: ; Size > 256, change. -; CHECK-DARWIN: bzero -; CHECK-LINUX: memset +; CHECK-DARWIN: {{b|bl}} _bzero +; CHECK-LINUX: {{b|bl}} memset define void @fct5(i8* %ptr) { entry: %tmp = tail call i64 @llvm.objectsize.i64(i8* %ptr, i1 false) @@ -61,10 +63,10 @@ entry: ret void } -; CHECK: @fct6 +; CHECK-LABEL: fct6: ; Size = unknown, change. -; CHECK-DARWIN: bzero -; CHECK-LINUX: memset +; CHECK-DARWIN: {{b|bl}} _bzero +; CHECK-LINUX: {{b|bl}} memset define void @fct6(i8* %ptr, i32 %unknown) { entry: %conv = sext i32 %unknown to i64 @@ -76,9 +78,10 @@ entry: ; Next functions check that memset is not turned into bzero ; when the set constant is non-zero, whatever the given size. -; CHECK: @fct7 +; CHECK-LABEL: fct7: ; memset with something that is not a zero, no change. -; CHECK: memset +; CHECK-DARWIN: {{b|bl}} _memset +; CHECK-LINUX: {{b|bl}} memset define void @fct7(i8* %ptr) { entry: %tmp = tail call i64 @llvm.objectsize.i64(i8* %ptr, i1 false) @@ -86,9 +89,10 @@ entry: ret void } -; CHECK: @fct8 +; CHECK-LABEL: fct8: ; memset with something that is not a zero, no change. -; CHECK: memset +; CHECK-DARWIN: {{b|bl}} _memset +; CHECK-LINUX: {{b|bl}} memset define void @fct8(i8* %ptr) { entry: %tmp = tail call i64 @llvm.objectsize.i64(i8* %ptr, i1 false) @@ -96,9 +100,10 @@ entry: ret void } -; CHECK: @fct9 +; CHECK-LABEL: fct9: ; memset with something that is not a zero, no change. -; CHECK: memset +; CHECK-DARWIN: {{b|bl}} _memset +; CHECK-LINUX: {{b|bl}} memset define void @fct9(i8* %ptr, i32 %unknown) { entry: %conv = sext i32 %unknown to i64 |