File: 2005-07-07-DeadPHILoop.ll

package info (click to toggle)
llvm-toolchain-13 1%3A13.0.1-11
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,418,840 kB
  • sloc: cpp: 5,290,826; ansic: 996,570; asm: 544,593; python: 188,212; objc: 72,027; lisp: 30,291; f90: 25,395; sh: 24,898; javascript: 9,780; pascal: 9,398; perl: 7,484; ml: 5,432; awk: 3,523; makefile: 2,913; xml: 953; cs: 573; fortran: 539
file content (14 lines) | stat: -rw-r--r-- 371 bytes parent folder | download | duplicates (28)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
; RUN: opt < %s -instcombine -disable-output

; This example caused instcombine to spin into an infinite loop.

define void @test(i32* %P) {
        ret void

Dead:           ; preds = %Dead
        %X = phi i32 [ %Y, %Dead ]              ; <i32> [#uses=1]
        %Y = sdiv i32 %X, 10            ; <i32> [#uses=2]
        store i32 %Y, i32* %P
        br label %Dead
}