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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=i686-unknown-unknown | FileCheck %s --check-prefixes=X86
; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s --check-prefixes=X64
; Ensure that the (pre-extended) shift amount type is wide enough to take any mask.
define void @PR56859() {
; X86-LABEL: PR56859:
; X86: # %bb.0: # %entry
; X86-NEXT: movl (%eax), %ecx
; X86-NEXT: testl %ecx, %ecx
; X86-NEXT: setne %al
; X86-NEXT: movl $1, %edx
; X86-NEXT: # kill: def $cl killed $cl killed $ecx
; X86-NEXT: shrl %cl, %edx
; X86-NEXT: btsl %eax, %edx
; X86-NEXT: movl %edx, (%eax)
; X86-NEXT: retl
;
; X64-LABEL: PR56859:
; X64: # %bb.0: # %entry
; X64-NEXT: movl (%rax), %ecx
; X64-NEXT: testl %ecx, %ecx
; X64-NEXT: setne %al
; X64-NEXT: movl $1, %edx
; X64-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NEXT: shrl %cl, %edx
; X64-NEXT: btsl %eax, %edx
; X64-NEXT: movl %edx, (%rax)
; X64-NEXT: retq
entry:
%0 = load i32, ptr undef, align 4
%tobool = icmp ne i32 %0, 0
%lor.ext = zext i1 %tobool to i32
%shr = lshr i32 1, %0
%shl = shl i32 1, %lor.ext
%or = or i32 %shl, %shr
store i32 %or, ptr undef, align 4
ret void
}
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