File: pr25421.ll

package info (click to toggle)
llvm-toolchain-20 1%3A20.1.6-1~exp1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 2,111,304 kB
  • sloc: cpp: 7,438,677; ansic: 1,393,822; asm: 1,012,926; python: 241,650; f90: 86,635; objc: 75,479; lisp: 42,144; pascal: 17,286; sh: 10,027; ml: 5,082; perl: 4,730; awk: 3,523; makefile: 3,349; javascript: 2,251; xml: 892; fortran: 672
file content (30 lines) | stat: -rw-r--r-- 690 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
24
25
26
27
28
29
30
 
; RUN: opt -S -passes=indvars < %s | FileCheck %s

target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.11.0"

declare void @use(i1)

define void @f(i32 %x) {
; CHECK-LABEL: @f(
 entry:
  %conv = sext i32 %x to i64
  %sub = add i64 %conv, -1
  %ec = icmp sgt i32 %x, 0
  br i1 %ec, label %loop, label %leave

 loop:
; CHECK: loop:
  %iv = phi i64 [ 0, %entry ], [ %iv.inc, %loop ]
  %iv.inc = add i64 %iv, 1
  %cmp = icmp slt i64 %iv, %sub
  call void @use(i1 %cmp)
; CHECK: call void @use(i1 %cmp)
; CHECK-NOT: call void @use(i1 true)

  %be.cond = icmp slt i64 %iv.inc, %conv
  br i1 %be.cond, label %loop, label %leave

 leave:
  ret void
}