forked from OSchip/llvm-project
26 lines
805 B
LLVM
26 lines
805 B
LLVM
; RUN: opt -indvars -loop-idiom -loop-deletion -S < %s | FileCheck %s
|
|
|
|
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-unknown-linux-gnu"
|
|
|
|
; Checking for a crash
|
|
|
|
define void @f(i32* %a) {
|
|
; CHECK-LABEL: @f(
|
|
entry:
|
|
br label %for.cond
|
|
|
|
for.cond: ; preds = %for.inc, %for.cond, %entry
|
|
%iv = phi i32 [ 0, %entry ], [ %add, %for.inc ], [ %iv, %for.cond ]
|
|
%add = add nsw i32 %iv, 1
|
|
%idxprom = sext i32 %add to i64
|
|
%arrayidx = getelementptr inbounds i32, i32* %a, i64 %idxprom
|
|
br i1 undef, label %for.cond, label %for.inc
|
|
|
|
for.inc: ; preds = %for.cond
|
|
br i1 undef, label %for.cond, label %for.end
|
|
|
|
for.end: ; preds = %for.inc
|
|
ret void
|
|
}
|