File: 2003-09-23-NotAtTop.ll

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-3~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm-proposed-updates
  • size: 1,998,492 kB
  • sloc: cpp: 6,951,680; ansic: 1,486,157; asm: 913,598; python: 232,024; f90: 80,126; objc: 75,281; lisp: 37,276; pascal: 16,990; sh: 10,009; ml: 5,058; perl: 4,724; awk: 3,523; makefile: 3,167; javascript: 2,504; xml: 892; fortran: 664; cs: 573
file content (20 lines) | stat: -rw-r--r-- 697 bytes parent folder | download | duplicates (12)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
; RUN: opt -S -passes=indvars < %s | FileCheck %s

; The indvar simplification code should ensure that the first PHI in the block 
; is the canonical one!

define i32 @test() {
; <label>:0
        br label %Loop

Loop:           ; preds = %Loop, %0
; CHECK: Loop:
; CHECK-NEXT: Canonical
        %NonIndvar = phi i32 [ 200, %0 ], [ %NonIndvarNext, %Loop ]             ; <i32> [#uses=1]
        %Canonical = phi i32 [ 0, %0 ], [ %CanonicalNext, %Loop ]               ; <i32> [#uses=2]
        store i32 %Canonical, ptr null
        %NonIndvarNext = sdiv i32 %NonIndvar, 2         ; <i32> [#uses=1]
        %CanonicalNext = add i32 %Canonical, 1          ; <i32> [#uses=1]
        br label %Loop
}