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| author | Amaury Sechet <deadalnix@gmail.com> | 2018-01-29 20:22:46 +0000 |
|---|---|---|
| committer | Amaury Sechet <deadalnix@gmail.com> | 2018-01-29 20:22:46 +0000 |
| commit | 4cbca08d71f90222803a6bd4156c5b5f2be141d9 (patch) | |
| tree | 00948345d88678ea052bb466e74ee99187cc6314 | |
| parent | 1589d6e6a3a2a605a68dbf6e0e21415afe824f7c (diff) | |
| download | bcm5719-llvm-4cbca08d71f90222803a6bd4156c5b5f2be141d9.tar.gz bcm5719-llvm-4cbca08d71f90222803a6bd4156c5b5f2be141d9.zip | |
[X86] Add test case to ensure testw is generated when optimizing for size. NFC
llvm-svn: 323687
| -rw-r--r-- | llvm/test/CodeGen/X86/test-shrink.ll | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/test-shrink.ll b/llvm/test/CodeGen/X86/test-shrink.ll index d7050504d54..a054c1f1edb 100644 --- a/llvm/test/CodeGen/X86/test-shrink.ll +++ b/llvm/test/CodeGen/X86/test-shrink.ll @@ -530,4 +530,48 @@ no: ret void } +define void @testw(i16 inreg %x) nounwind minsize { +; CHECK-LINUX64-LABEL: testw: +; CHECK-LINUX64: # %bb.0: +; CHECK-LINUX64-NEXT: testw $2049, %di # imm = 0x801 +; CHECK-LINUX64-NEXT: je .LBB12_1 +; CHECK-LINUX64-NEXT: # %bb.2: # %no +; CHECK-LINUX64-NEXT: retq +; CHECK-LINUX64-NEXT: .LBB12_1: # %yes +; CHECK-LINUX64-NEXT: pushq %rax +; CHECK-LINUX64-NEXT: callq bar +; CHECK-LINUX64-NEXT: popq %rax +; CHECK-LINUX64-NEXT: retq +; +; CHECK-WIN32-64-LABEL: testw: +; CHECK-WIN32-64: # %bb.0: +; CHECK-WIN32-64-NEXT: subq $40, %rsp +; CHECK-WIN32-64-NEXT: testw $2049, %cx # imm = 0x801 +; CHECK-WIN32-64-NEXT: jne .LBB12_2 +; CHECK-WIN32-64-NEXT: # %bb.1: # %yes +; CHECK-WIN32-64-NEXT: callq bar +; CHECK-WIN32-64-NEXT: .LBB12_2: # %no +; CHECK-WIN32-64-NEXT: addq $40, %rsp +; CHECK-WIN32-64-NEXT: retq +; +; CHECK-X86-LABEL: testw: +; CHECK-X86: # %bb.0: +; CHECK-X86-NEXT: testw $2049, %ax # imm = 0x801 +; CHECK-X86-NEXT: je .LBB12_1 +; CHECK-X86-NEXT: # %bb.2: # %no +; CHECK-X86-NEXT: retl +; CHECK-X86-NEXT: .LBB12_1: # %yes +; CHECK-X86-NEXT: calll bar +; CHECK-X86-NEXT: retl + %t = and i16 %x, 2049 + %s = icmp eq i16 %t, 0 + br i1 %s, label %yes, label %no + +yes: + call void @bar() + ret void +no: + ret void +} + declare void @bar() |
