llvm-capstone/polly/test/DeadCodeElimination/non-affine.ll
Tobias Grosser 780ce0f8e3 DeadCodeElim: Compute correct liveout for non-affine accesses
Thanks to Johannes Doerfert for narrowing down the bug.

Reported-by: Chris Jenneisch <chrisj@codeaurora.org>
llvm-svn: 212796
2014-07-11 07:12:10 +00:00

35 lines
994 B
LLVM

; RUN: opt %loadPolly -polly-allow-nonaffine -polly-dce -polly-ast -analyze < %s | FileCheck %s
;
; CHECK: for (int c1 = 0; c1 <= 1023; c1 += 1)
;
; void f(int *A) {
; for (int i = 0; i < 1024; i++)
; A[i % 2] = i;
; }
;
target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-n32-S64"
define void @f(i32* %A) {
entry:
br label %for.cond
for.cond: ; preds = %for.inc, %entry
%i.0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ]
%exitcond = icmp ne i32 %i.0, 1024
br i1 %exitcond, label %for.body, label %for.end
for.body: ; preds = %for.cond
%rem = srem i32 %i.0, 2
%arrayidx = getelementptr inbounds i32* %A, i32 %rem
store i32 %i.0, i32* %arrayidx, align 4
br label %for.inc
for.inc: ; preds = %for.body
%inc = add nsw i32 %i.0, 1
br label %for.cond
for.end: ; preds = %for.cond
ret void
}