diff options
| -rw-r--r-- | llvm/test/CodeGen/X86/ctpop-combine.ll | 38 |
1 files changed, 24 insertions, 14 deletions
diff --git a/llvm/test/CodeGen/X86/ctpop-combine.ll b/llvm/test/CodeGen/X86/ctpop-combine.ll index 786f7f9b1cc..3da16fb0121 100644 --- a/llvm/test/CodeGen/X86/ctpop-combine.ll +++ b/llvm/test/CodeGen/X86/ctpop-combine.ll @@ -1,40 +1,50 @@ -; RUN: llc -march=x86-64 -mcpu=corei7 < %s | FileCheck %s +; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py +; RUN: llc < %s -mtriple=x86_64-unknown -mcpu=corei7 | FileCheck %s declare i64 @llvm.ctpop.i64(i64) nounwind readnone define i32 @test1(i64 %x) nounwind readnone { +; CHECK-LABEL: test1: +; CHECK: # BB#0: +; CHECK-NEXT: leaq -1(%rdi), %rax +; CHECK-NEXT: testq %rax, %rdi +; CHECK-NEXT: setne %al +; CHECK-NEXT: movzbl %al, %eax +; CHECK-NEXT: retq %count = tail call i64 @llvm.ctpop.i64(i64 %x) %cast = trunc i64 %count to i32 %cmp = icmp ugt i32 %cast, 1 %conv = zext i1 %cmp to i32 ret i32 %conv -; CHECK-LABEL: test1: -; CHECK: leaq -1([[A0:%rdi|%rcx]]) -; CHECK-NEXT: testq -; CHECK-NEXT: setne -; CHECK: ret } define i32 @test2(i64 %x) nounwind readnone { +; CHECK-LABEL: test2: +; CHECK: # BB#0: +; CHECK-NEXT: leaq -1(%rdi), %rax +; CHECK-NEXT: testq %rax, %rdi +; CHECK-NEXT: sete %al +; CHECK-NEXT: movzbl %al, %eax +; CHECK-NEXT: retq %count = tail call i64 @llvm.ctpop.i64(i64 %x) %cmp = icmp ult i64 %count, 2 %conv = zext i1 %cmp to i32 ret i32 %conv -; CHECK-LABEL: test2: -; CHECK: leaq -1([[A0]]) -; CHECK-NEXT: testq -; CHECK-NEXT: sete -; CHECK: ret } define i32 @test3(i64 %x) nounwind readnone { +; CHECK-LABEL: test3: +; CHECK: # BB#0: +; CHECK-NEXT: popcntq %rdi, %rax +; CHECK-NEXT: andb $63, %al +; CHECK-NEXT: cmpb $2, %al +; CHECK-NEXT: sbbl %eax, %eax +; CHECK-NEXT: andl $1, %eax +; CHECK-NEXT: retq %count = tail call i64 @llvm.ctpop.i64(i64 %x) %cast = trunc i64 %count to i6 ; Too small for 0-64 %cmp = icmp ult i6 %cast, 2 %conv = zext i1 %cmp to i32 ret i32 %conv -; CHECK-LABEL: test3: -; CHECK: cmpb $2 -; CHECK: ret } |
