diff options
Diffstat (limited to 'llvm/test/CodeGen/X86/extract-lowbits.ll')
| -rw-r--r-- | llvm/test/CodeGen/X86/extract-lowbits.ll | 15 |
1 files changed, 3 insertions, 12 deletions
diff --git a/llvm/test/CodeGen/X86/extract-lowbits.ll b/llvm/test/CodeGen/X86/extract-lowbits.ll index f17074a7aed..c7fa8617e07 100644 --- a/llvm/test/CodeGen/X86/extract-lowbits.ll +++ b/llvm/test/CodeGen/X86/extract-lowbits.ll @@ -3463,22 +3463,13 @@ define i32 @bzhi64_32_c0(i64 %val, i64 %numlowbits) nounwind { ; ; X64-BMI1NOTBM-LABEL: bzhi64_32_c0: ; X64-BMI1NOTBM: # %bb.0: -; X64-BMI1NOTBM-NEXT: movq %rsi, %rcx -; X64-BMI1NOTBM-NEXT: negb %cl -; X64-BMI1NOTBM-NEXT: movq $-1, %rax -; X64-BMI1NOTBM-NEXT: # kill: def $cl killed $cl killed $rcx -; X64-BMI1NOTBM-NEXT: shrq %cl, %rax -; X64-BMI1NOTBM-NEXT: andl %edi, %eax -; X64-BMI1NOTBM-NEXT: # kill: def $eax killed $eax killed $rax +; X64-BMI1NOTBM-NEXT: shll $8, %esi +; X64-BMI1NOTBM-NEXT: bextrl %esi, %edi, %eax ; X64-BMI1NOTBM-NEXT: retq ; ; X64-BMI1BMI2-LABEL: bzhi64_32_c0: ; X64-BMI1BMI2: # %bb.0: -; X64-BMI1BMI2-NEXT: negb %sil -; X64-BMI1BMI2-NEXT: movq $-1, %rax -; X64-BMI1BMI2-NEXT: shrxq %rsi, %rax, %rax -; X64-BMI1BMI2-NEXT: andl %edi, %eax -; X64-BMI1BMI2-NEXT: # kill: def $eax killed $eax killed $rax +; X64-BMI1BMI2-NEXT: bzhil %esi, %edi, %eax ; X64-BMI1BMI2-NEXT: retq %numhighbits = sub i64 64, %numlowbits %mask = lshr i64 -1, %numhighbits |
