File: i1-ext-fold.ll

package info (click to toggle)
llvm-toolchain-7 1%3A7.0.1-8
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 733,456 kB
  • sloc: cpp: 3,776,651; ansic: 633,271; asm: 350,301; python: 142,716; objc: 107,612; sh: 22,626; lisp: 11,056; perl: 7,999; pascal: 6,742; ml: 5,537; awk: 3,536; makefile: 2,557; cs: 2,027; xml: 841; ruby: 156
file content (73 lines) | stat: -rw-r--r-- 1,873 bytes parent folder | download | duplicates (5)
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
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
; RUN: llc -verify-machineinstrs -mcpu=pwr7 < %s | FileCheck %s
; RUN: llc -verify-machineinstrs -mcpu=pwr7 -ppc-gen-isel=false < %s | FileCheck --check-prefix=CHECK-NO-ISEL %s
target datalayout = "E-m:e-i64:64-n32:64"
target triple = "powerpc64-unknown-linux-gnu"

; Function Attrs: nounwind readnone
define signext i32 @foo(i32 signext %a, i32 signext %b) #0 {
entry:
  %cmp = icmp slt i32 %a, %b
  %conv = zext i1 %cmp to i32
  %shl = shl nuw nsw i32 %conv, 4
  ret i32 %shl

; CHECK-LABEL: @foo
; CHECK-NO-ISEL-LABEL: @foo
; CHECK-DAG: cmpw
; CHECK-DAG: li [[REG1:[0-9]+]], 0
; CHECK-DAG: li [[REG2:[0-9]+]], 16
; CHECK: isel 3, [[REG2]], [[REG1]],
; CHECK: blr

; CHECK-NO-ISEL: bclr 12, 0, 0
; CHECK-NO-ISEL: ori 3, 5, 0
; CHECK-NO-ISEL-NEXT: blr
}

; Function Attrs: nounwind readnone
define signext i32 @foo2(i32 signext %a, i32 signext %b) #0 {
entry:
  %cmp = icmp slt i32 %a, %b
  %conv = zext i1 %cmp to i32
  %shl = shl nuw nsw i32 %conv, 4
  %add1 = or i32 %shl, 5
  ret i32 %add1

; CHECK-LABEL: @foo2
; CHECK-NO-ISEL-LABEL: @foo2
; CHECK-DAG: cmpw
; CHECK-DAG: li [[REG1:[0-9]+]], 5
; CHECK-DAG: li [[REG2:[0-9]+]], 21
; CHECK: isel 3, [[REG2]], [[REG1]],
; CHECK: blr

; CHECK-NO-ISEL: bclr 12, 0, 0
; CHECK-NO-ISEL: ori 3, 5, 0
; CHECK-NO-ISEL-NEXT: blr
}

; Function Attrs: nounwind readnone
define signext i32 @foo3(i32 signext %a, i32 signext %b) #0 {
entry:
  %cmp = icmp sle i32 %a, %b
  %conv = zext i1 %cmp to i32
  %shl = shl nuw nsw i32 %conv, 4
  ret i32 %shl

; CHECK-LABEL: @foo3
; CHECK-NO-ISEL-LABEL: @foo3
; CHECK-DAG: cmpw
; CHECK-DAG: li [[REG1:[0-9]+]], 16
; CHECK: isel 3, 0, [[REG1]],
; CHECK: blr

; CHECK-NO-ISEL: bc 12, 1, [[TRUE:.LBB[0-9]+]]
; CHECK-NO-ISEL: ori 3, 5, 0
; CHECK-NO-ISEL-NEXT: blr
; CHECK-NO-ISEL-NEXT: [[TRUE]]
; CHECK-NO-ISEL-NEXT: addi 3, 0, 0
; CHECK-NO-ISEL-NEXT: blr
}

attributes #0 = { nounwind readnone }