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[NFC][X86] Add a few more blsr test cases

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llvm-svn: 352305
This commit is contained in:
Gabor Buella 2019-01-27 06:05:40 +00:00
parent d6f6e529e5
commit 72dfe06ad1
1 changed files with 100 additions and 0 deletions
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100
test/CodeGen/X86/bmi.ll
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@ -1053,4 +1053,104 @@ define void @pr40060(i32, i32) {
ret void
}
define i32 @blsr32_branch(i32 %x) {
; X86-LABEL: blsr32_branch:
; X86: # %bb.0:
; X86-NEXT: pushl %esi
; X86-NEXT: .cfi_def_cfa_offset 8
; X86-NEXT: .cfi_offset %esi, -8
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: leal -1(%eax), %esi
; X86-NEXT: andl %eax, %esi
; X86-NEXT: jne .LBB46_2
; X86-NEXT: # %bb.1:
; X86-NEXT: calll bar
; X86-NEXT: .LBB46_2:
; X86-NEXT: movl %esi, %eax
; X86-NEXT: popl %esi
; X86-NEXT: .cfi_def_cfa_offset 4
; X86-NEXT: retl
;
; X64-LABEL: blsr32_branch:
; X64: # %bb.0:
; X64-NEXT: pushq %rbx
; X64-NEXT: .cfi_def_cfa_offset 16
; X64-NEXT: .cfi_offset %rbx, -16
; X64-NEXT: # kill: def $edi killed $edi def $rdi
; X64-NEXT: leal -1(%rdi), %ebx
; X64-NEXT: andl %edi, %ebx
; X64-NEXT: jne .LBB46_2
; X64-NEXT: # %bb.1:
; X64-NEXT: callq bar
; X64-NEXT: .LBB46_2:
; X64-NEXT: movl %ebx, %eax
; X64-NEXT: popq %rbx
; X64-NEXT: .cfi_def_cfa_offset 8
; X64-NEXT: retq
%tmp = sub i32 %x, 1
%tmp2 = and i32 %x, %tmp
%cmp = icmp eq i32 %tmp2, 0
br i1 %cmp, label %1, label %2
tail call void @bar()
br label %2
ret i32 %tmp2
}
define i64 @blsr64_branch(i64 %x) {
; X86-LABEL: blsr64_branch:
; X86: # %bb.0:
; X86-NEXT: pushl %edi
; X86-NEXT: .cfi_def_cfa_offset 8
; X86-NEXT: pushl %esi
; X86-NEXT: .cfi_def_cfa_offset 12
; X86-NEXT: .cfi_offset %esi, -12
; X86-NEXT: .cfi_offset %edi, -8
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT: movl %eax, %esi
; X86-NEXT: addl $-1, %esi
; X86-NEXT: movl %ecx, %edi
; X86-NEXT: adcl $-1, %edi
; X86-NEXT: andl %eax, %esi
; X86-NEXT: andl %ecx, %edi
; X86-NEXT: movl %esi, %eax
; X86-NEXT: orl %edi, %eax
; X86-NEXT: jne .LBB47_2
; X86-NEXT: # %bb.1:
; X86-NEXT: calll bar
; X86-NEXT: .LBB47_2:
; X86-NEXT: movl %esi, %eax
; X86-NEXT: movl %edi, %edx
; X86-NEXT: popl %esi
; X86-NEXT: .cfi_def_cfa_offset 8
; X86-NEXT: popl %edi
; X86-NEXT: .cfi_def_cfa_offset 4
; X86-NEXT: retl
;
; X64-LABEL: blsr64_branch:
; X64: # %bb.0:
; X64-NEXT: pushq %rbx
; X64-NEXT: .cfi_def_cfa_offset 16
; X64-NEXT: .cfi_offset %rbx, -16
; X64-NEXT: leaq -1(%rdi), %rbx
; X64-NEXT: andq %rdi, %rbx
; X64-NEXT: jne .LBB47_2
; X64-NEXT: # %bb.1:
; X64-NEXT: callq bar
; X64-NEXT: .LBB47_2:
; X64-NEXT: movq %rbx, %rax
; X64-NEXT: popq %rbx
; X64-NEXT: .cfi_def_cfa_offset 8
; X64-NEXT: retq
%tmp = sub i64 %x, 1
%tmp2 = and i64 %x, %tmp
%cmp = icmp eq i64 %tmp2, 0
br i1 %cmp, label %1, label %2
tail call void @bar()
br label %2
ret i64 %tmp2
}
declare void @bar()