File: 2006-03-31-NegativeStride.ll

package info (click to toggle)
swiftlang 6.0.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 2,519,992 kB
  • sloc: cpp: 9,107,863; ansic: 2,040,022; asm: 1,135,751; python: 296,500; objc: 82,456; f90: 60,502; lisp: 34,951; pascal: 19,946; sh: 18,133; perl: 7,482; ml: 4,937; javascript: 4,117; makefile: 3,840; awk: 3,535; xml: 914; fortran: 619; cs: 573; ruby: 573
file content (23 lines) | stat: -rw-r--r-- 772 bytes parent folder | download | duplicates (14) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
 
; PR726
; RUN: opt < %s -passes=indvars -S | FileCheck %s

; Make sure to compute the right exit value based on negative strides.

define i32 @test() {
; CHECK-LABEL: @test(
; CHECK: ret i32 27
entry:
        br label %cond_true

cond_true:              ; preds = %cond_true, %entry
        %a.0.0 = phi i32 [ 10, %entry ], [ %tmp4, %cond_true ]          ; <i32> [#uses=2]
        %b.0.0 = phi i32 [ 0, %entry ], [ %tmp2, %cond_true ]           ; <i32> [#uses=1]
        %tmp2 = add i32 %b.0.0, %a.0.0          ; <i32> [#uses=2]
        %tmp4 = add i32 %a.0.0, -1              ; <i32> [#uses=2]
        %tmp = icmp sgt i32 %tmp4, 7            ; <i1> [#uses=1]
        br i1 %tmp, label %cond_true, label %bb7

bb7:            ; preds = %cond_true
        ret i32 %tmp2
}