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
|
; RUN: llc -mcpu=pwr7 < %s | FileCheck %s
target datalayout = "E-m:e-p:32:32-i64:64-n32"
target triple = "powerpc-unknown-linux-gnu"
; Function Attrs: nounwind readnone
define zeroext i16 @test16(i16 zeroext %x, i16 zeroext %y) #0 {
entry:
%0 = xor i16 %y, %x
%1 = and i16 %0, 255
%cmp = icmp eq i16 %1, 0
%cmp20 = icmp ult i16 %0, 256
%conv25 = select i1 %cmp, i32 255, i32 0
%conv27 = select i1 %cmp20, i32 65280, i32 0
%or = or i32 %conv25, %conv27
%conv29 = trunc i32 %or to i16
ret i16 %conv29
; CHECK-LABEL: @test16
; CHECK: cmpb [[REG1:[0-9]+]], 4, 3
; CHECK: clrlwi 3, [[REG1]], 16
; CHECK: blr
}
define i32 @test32(i32 %x, i32 %y) #0 {
entry:
%0 = xor i32 %y, %x
%1 = and i32 %0, 255
%cmp = icmp eq i32 %1, 0
%2 = and i32 %0, 65280
%cmp28 = icmp eq i32 %2, 0
%3 = and i32 %0, 16711680
%cmp34 = icmp eq i32 %3, 0
%cmp40 = icmp ult i32 %0, 16777216
%conv44 = select i1 %cmp, i32 255, i32 0
%conv45 = select i1 %cmp28, i32 65280, i32 0
%conv47 = select i1 %cmp34, i32 16711680, i32 0
%conv50 = select i1 %cmp40, i32 -16777216, i32 0
%or = or i32 %conv45, %conv50
%or49 = or i32 %or, %conv44
%or52 = or i32 %or49, %conv47
ret i32 %or52
; CHECK-LABEL: @test32
; CHECK: cmpb 3, 4, 3
; CHECK-NOT: rlwinm
; CHECK: blr
}
attributes #0 = { nounwind readnone }
|
