File: 2002-09-09-PointerIndVar.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 (17 lines) | stat: -rw-r--r-- 627 bytes parent folder | download | duplicates (29) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
 
; Induction variable pass is doing bad things with pointer induction vars, 
; trying to do arithmetic on them directly.
;
; RUN: opt < %s -indvars
;
define void @test(i32 %A, i32 %S, i8* %S.upgrd.1) {
; <label>:0
        br label %Loop

Loop:           ; preds = %Loop, %0
        %PIV = phi i8* [ %S.upgrd.1, %0 ], [ %PIVNext.upgrd.3, %Loop ]          ; <i8*> [#uses=1]
        %PIV.upgrd.2 = ptrtoint i8* %PIV to i64         ; <i64> [#uses=1]
        %PIVNext = add i64 %PIV.upgrd.2, 8              ; <i64> [#uses=1]
        %PIVNext.upgrd.3 = inttoptr i64 %PIVNext to i8*         ; <i8*> [#uses=1]
        br label %Loop
}