llvm/test/Transforms/IndVarSimplify/pr135182.ll


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

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
; RUN: opt -S -passes=indvars < %s | FileCheck %s

target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"

define i32 @pr135182() {
; CHECK-LABEL: define i32 @pr135182() {
; CHECK-NEXT:  [[ENTRY:.*:]]
; CHECK-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK:       [[FOR_BODY]]:
; CHECK-NEXT:    br i1 false, label %[[FOR_BODY]], label %[[FOR_END:.*]]
; CHECK:       [[FOR_END]]:
; CHECK-NEXT:    ret i32 65512
;
entry:
  br label %for.body

for.body:
  %indvar = phi i16 [ -12, %entry ], [ %indvar.next, %for.body ]
  %add = add i16 %indvar, %indvar
  %ext = zext i16 %add to i32
  %indvar.next = add i16 %indvar, 1
  br i1 false, label %for.body, label %for.end

for.end:
  ret i32 %ext
}