diff options
| author |   Eli Friedman <efriedma@quicinc.com> | 2019-03-25 21:25:28 +0000 |
|---|---|---|
| committer | Eli Friedman <efriedma@quicinc.com> | 2019-03-25 21:25:28 +0000 |
| commit | 92d0d133661f6c1bcc3dd37c7a6435a2c0733f81 (patch) | |
| tree | fd283e47226841aa0869a6b7827c6c2f475db7a3 /llvm/test/CodeGen/AArch64/cmpxchg-idioms.ll | |
| parent | [WebAssembly] Don't use default GetLinkerPath (diff) | |
| download | llvm-project-92d0d133661f6c1bcc3dd37c7a6435a2c0733f81.tar.gz llvm-project-92d0d133661f6c1bcc3dd37c7a6435a2c0733f81.tar.bz2 llvm-project-92d0d133661f6c1bcc3dd37c7a6435a2c0733f81.zip | |
[AArch64] Prefer "mov" over "orr" to materialize constants.
This is generally more readable due to the way the assembler aliases
work.
(This causes a lot of test changes, but it's not really as scary as it
looks at first glance; it's just mechanically changing a bunch of checks
for orr to check for mov instead.)
Differential Revision: https://reviews.llvm.org/D59720
llvm-svn: 356954
Diffstat (limited to 'llvm/test/CodeGen/AArch64/cmpxchg-idioms.ll')
| -rw-r--r-- | llvm/test/CodeGen/AArch64/cmpxchg-idioms.ll | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/llvm/test/CodeGen/AArch64/cmpxchg-idioms.ll b/llvm/test/CodeGen/AArch64/cmpxchg-idioms.ll index 5ff3ddfe09a4..088710c67379 100644 --- a/llvm/test/CodeGen/AArch64/cmpxchg-idioms.ll +++ b/llvm/test/CodeGen/AArch64/cmpxchg-idioms.ll @@ -12,7 +12,7 @@ define i32 @test_return(i32* %p, i32 %oldval, i32 %newval) { ; CHECK: cbnz [[STATUS]], [[LOOP]] ; CHECK-NOT: cmp {{w[0-9]+}}, {{w[0-9]+}} -; CHECK: orr w0, wzr, #0x1 +; CHECK: mov w0, #1 ; CHECK: ret ; CHECK: [[FAILED]]: @@ -39,7 +39,7 @@ define i1 @test_return_bool(i8* %value, i8 %oldValue, i8 %newValue) { ; CHECK-NOT: cmp {{w[0-9]+}}, {{w[0-9]+}} ; FIXME: DAG combine should be able to deal with this. -; CHECK: orr [[TMP:w[0-9]+]], wzr, #0x1 +; CHECK: mov [[TMP:w[0-9]+]], #1 ; CHECK: eor w0, [[TMP]], #0x1 ; CHECK: ret @@ -100,7 +100,7 @@ define i1 @test_conditional2(i32 %a, i32 %b, i32* %c) { ; CHECK: stlxr [[STATUS:w[0-9]+]], w20, [x19] ; CHECK: cbnz [[STATUS]], [[LOOP]] -; CHECK: orr [[STATUS]], wzr, #0x1 +; CHECK: mov [[STATUS]], #1 ; CHECK: b [[PH:LBB[0-9]+_[0-9]+]] ; CHECK: [[FAILED]]: @@ -108,8 +108,8 @@ define i1 @test_conditional2(i32 %a, i32 %b, i32* %c) { ; verify the preheader is simplified by simplifycfg. ; CHECK: [[PH]]: -; CHECK: orr w22, wzr, #0x2 -; CHECK-NOT: orr w22, wzr, #0x4 +; CHECK: mov w22, #2 +; CHECK-NOT: mov w22, #4 ; CHECK-NOT: cmn w22, #4 ; CHECK: b [[LOOP2:LBB[0-9]+_[0-9]+]] ; CHECK-NOT: b.ne [[LOOP2]] |