File: pr27996.ll

package info (click to toggle)
llvm-toolchain-14 1%3A14.0.6-12
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,496,180 kB
  • sloc: cpp: 5,593,972; ansic: 986,872; asm: 585,869; python: 184,223; objc: 72,530; lisp: 31,119; f90: 27,793; javascript: 9,780; pascal: 9,762; sh: 9,482; perl: 7,468; ml: 5,432; awk: 3,523; makefile: 2,538; xml: 953; cs: 573; fortran: 567
file content (41 lines) | stat: -rw-r--r-- 950 bytes parent folder | download | duplicates (15) 
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
 
; RUN: opt < %s -instcombine -S | FileCheck %s


@i = constant i32 1, align 4
@f = constant float 0x3FF19999A0000000, align 4
@cmp = common global i32 0, align 4
@resf = common global float* null, align 8
@resi = common global i32* null, align 8

define i32 @foo() {
entry:
  br label %while.cond

while.cond:
  %res.0 = phi i32* [ null, %entry ], [ @i, %if.then ], [ bitcast (float* @f to i32*), %if.else ]
  %0 = load i32, i32* @cmp, align 4
  %shr = ashr i32 %0, 1
  store i32 %shr, i32* @cmp, align 4
  %tobool = icmp ne i32 %shr, 0
  br i1 %tobool, label %while.body, label %while.end

while.body:
  %and = and i32 %shr, 1
  %tobool1 = icmp ne i32 %and, 0
  br i1 %tobool1, label %if.then, label %if.else

if.then:
  br label %while.cond

if.else:
  br label %while.cond

while.end:
  %1 = bitcast i32* %res.0 to float*
  store float* %1, float** @resf, align 8
  store i32* %res.0, i32** @resi, align 8
  ret i32 0

; CHECK-NOT: bitcast i32
}