File: 2012-03-16-Crash-because-of-unsigned-in-scev.ll

package info (click to toggle)
swiftlang 6.1.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 2,791,604 kB
  • sloc: cpp: 9,901,740; ansic: 2,201,431; asm: 1,091,827; python: 308,252; objc: 82,166; f90: 80,126; lisp: 38,358; pascal: 25,559; sh: 20,429; ml: 5,058; perl: 4,745; makefile: 4,484; awk: 3,535; javascript: 3,018; xml: 918; fortran: 664; cs: 573; ruby: 396
file content (31 lines) | stat: -rw-r--r-- 841 bytes parent folder | download | duplicates (8) 
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
 
; RUN: opt %loadNPMPolly '-passes=print<polly-function-scops>' -disable-output < %s 2>&1 | FileCheck %s

target datalayout = "e-p:32:32:32-i64:64:64-i32:32:32-i16:16:16-i1:32:32-f64:64:64-f32:32:32-a0:0-n32"

@array = external global [64 x i8], align 8

define void @foo(ptr %A) nounwind {
entry:
  br label %if.then132

if.then132:
  %loaded = load i32, ptr %A
  %0 = icmp ugt i32 %loaded, 10
  %umax = select i1 %0, i32 %loaded, i32 10
  br label %do.body

do.body:
  %indvar = phi i32 [ %3, %do.body ], [ 0, %if.then132 ]
  %1 = add i32 0, %umax
  %2 = sub i32 %1, %indvar
  %arrayidx = getelementptr [64 x i8], ptr @array, i32 0, i32 %2
  store i8 1, ptr %arrayidx, align 1
  %3 = add i32 %indvar, 1
  %exitcond = icmp eq i32 %3, 20
  br i1 %exitcond, label %for.end, label %do.body

for.end:
  ret void
}

;CHECK: p0: (10 umax %loaded)