1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=i686-unknown-linux-gnu | FileCheck %s --check-prefix=X86
; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu | FileCheck %s --check-prefix=X64
define i32 @fn() {
; X86-LABEL: fn:
; X86: # %bb.0: # %entry
; X86-NEXT: xorl %eax, %eax
; X86-NEXT: cmpl $1, %eax
; X86-NEXT: setne %al
; X86-NEXT: sete %cl
; X86-NEXT: negl %eax
; X86-NEXT: addb %cl, %cl
; X86-NEXT: shll %cl, %eax
; X86-NEXT: .p2align 4, 0x90
; X86-NEXT: .LBB0_1: # %bb1
; X86-NEXT: # =>This Inner Loop Header: Depth=1
; X86-NEXT: testl %eax, %eax
; X86-NEXT: je .LBB0_1
; X86-NEXT: # %bb.2: # %bb2
; X86-NEXT: retl
;
; X64-LABEL: fn:
; X64: # %bb.0: # %entry
; X64-NEXT: xorl %eax, %eax
; X64-NEXT: cmpl $1, %eax
; X64-NEXT: setne %al
; X64-NEXT: sete %cl
; X64-NEXT: negl %eax
; X64-NEXT: addb %cl, %cl
; X64-NEXT: shll %cl, %eax
; X64-NEXT: .p2align 4, 0x90
; X64-NEXT: .LBB0_1: # %bb1
; X64-NEXT: # =>This Inner Loop Header: Depth=1
; X64-NEXT: testl %eax, %eax
; X64-NEXT: je .LBB0_1
; X64-NEXT: # %bb.2: # %bb2
; X64-NEXT: retq
entry:
%cmp1 = icmp ne i32 undef, 1
%cmp2 = icmp eq i32 undef, 1
%sel1 = select i1 %cmp1, i32 0, i32 2
%sel2 = select i1 %cmp2, i32 2, i32 0
%sext = sext i1 %cmp1 to i32
%shl1 = shl i32 %sext, %sel1
%shl2 = shl i32 %sext, %sel2
%tobool = icmp eq i32 %shl1, 0
br label %bb1
bb1: ; preds = %bb1, %entry
br i1 %tobool, label %bb1, label %bb2
bb2: ; preds = %bb1
ret i32 %shl2
}
|
