Files
clang-p2996/polly/test/Isl/CodeGen/MemAccess/bad_alignment.ll
Tobias Grosser f4ee371e60 tests: Drop -polly-detect-unprofitable and -polly-no-early-exit
These flags are now always passed to all tests and need to be disabled if
not needed. Disabling these flags, rather than passing them to almost all
tests, significantly simplfies our RUN: lines.

llvm-svn: 249422
2015-10-06 15:36:44 +00:00

37 lines
1.2 KiB
LLVM

; RUN: opt %loadPolly -polly-import-jscop -polly-import-jscop-dir=%S -analyze 2>&1 < %s | FileCheck %s
;
; Check that we do not allow to access elements not accessed before because the
; alignment information would become invalid.
;
; CHECK: JScop file changes the accessed memory
;
; void bad_alignment(int *A) {
; for (int i = 0; i < 1024; i += 2)
; A[i] = i;
; }
;
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
define void @bad_alignment(i32* %A) {
entry:
br label %for.cond
for.cond: ; preds = %for.inc, %entry
%indvars.iv = phi i64 [ %indvars.iv.next, %for.inc ], [ 0, %entry ]
%cmp = icmp slt i64 %indvars.iv, 1024
br i1 %cmp, label %for.body, label %for.end
for.body: ; preds = %for.cond
%arrayidx = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
%tmp = trunc i64 %indvars.iv to i32
store i32 %tmp, i32* %arrayidx, align 8
br label %for.inc
for.inc: ; preds = %for.body
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 2
br label %for.cond
for.end: ; preds = %for.cond
ret void
}