diff options
Diffstat (limited to 'llvm/test/CodeGen/X86/ctpop-combine.ll')
| -rw-r--r-- | llvm/test/CodeGen/X86/ctpop-combine.ll | 27 |
1 files changed, 6 insertions, 21 deletions
diff --git a/llvm/test/CodeGen/X86/ctpop-combine.ll b/llvm/test/CodeGen/X86/ctpop-combine.ll index d1a888396f3..41a7d93025d 100644 --- a/llvm/test/CodeGen/X86/ctpop-combine.ll +++ b/llvm/test/CodeGen/X86/ctpop-combine.ll @@ -122,28 +122,13 @@ define i32 @ctpop_eq_one(i64 %x) nounwind readnone { ; ; NO-POPCOUNT-LABEL: ctpop_eq_one: ; NO-POPCOUNT: # %bb.0: -; NO-POPCOUNT-NEXT: movq %rdi, %rax -; NO-POPCOUNT-NEXT: shrq %rax -; NO-POPCOUNT-NEXT: movabsq $6148914691236517205, %rcx # imm = 0x5555555555555555 -; NO-POPCOUNT-NEXT: andq %rax, %rcx -; NO-POPCOUNT-NEXT: subq %rcx, %rdi -; NO-POPCOUNT-NEXT: movabsq $3689348814741910323, %rax # imm = 0x3333333333333333 -; NO-POPCOUNT-NEXT: movq %rdi, %rcx -; NO-POPCOUNT-NEXT: andq %rax, %rcx -; NO-POPCOUNT-NEXT: shrq $2, %rdi -; NO-POPCOUNT-NEXT: andq %rax, %rdi -; NO-POPCOUNT-NEXT: addq %rcx, %rdi -; NO-POPCOUNT-NEXT: movq %rdi, %rax -; NO-POPCOUNT-NEXT: shrq $4, %rax -; NO-POPCOUNT-NEXT: addq %rdi, %rax -; NO-POPCOUNT-NEXT: movabsq $1085102592571150095, %rcx # imm = 0xF0F0F0F0F0F0F0F -; NO-POPCOUNT-NEXT: andq %rax, %rcx -; NO-POPCOUNT-NEXT: movabsq $72340172838076673, %rdx # imm = 0x101010101010101 -; NO-POPCOUNT-NEXT: imulq %rcx, %rdx -; NO-POPCOUNT-NEXT: shrq $56, %rdx -; NO-POPCOUNT-NEXT: xorl %eax, %eax -; NO-POPCOUNT-NEXT: cmpq $1, %rdx +; NO-POPCOUNT-NEXT: leaq -1(%rdi), %rax +; NO-POPCOUNT-NEXT: testq %rax, %rdi ; NO-POPCOUNT-NEXT: sete %al +; NO-POPCOUNT-NEXT: testq %rdi, %rdi +; NO-POPCOUNT-NEXT: setne %cl +; NO-POPCOUNT-NEXT: andb %al, %cl +; NO-POPCOUNT-NEXT: movzbl %cl, %eax ; NO-POPCOUNT-NEXT: retq %count = tail call i64 @llvm.ctpop.i64(i64 %x) %cmp = icmp eq i64 %count, 1 |
