Files
clang-p2996/polly/test/Isl/CodeGen/MemAccess/simple_stride_test.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

48 lines
1.9 KiB
LLVM

; RUN: opt %loadPolly -basicaa -polly-import-jscop -polly-import-jscop-dir=%S -polly-codegen -polly-vectorizer=polly -S < %s | FileCheck %s
;
; Check that we use the correct __new__ strides:
; stride zero for B
; stride one for A
;
; CHECK: %polly.access.B = getelementptr i32, i32* %B, i64 0
; CHECK: %[[BC:[._a-zA-Z0-9]*]] = bitcast i32* %polly.access.B to <1 x i32>*
; CHECK: %[[LD:[._a-zA-Z0-9]*]] = load <1 x i32>, <1 x i32>* %[[BC]], align 8
; CHECK: %[[SV:[._a-zA-Z0-9]*]] = shufflevector <1 x i32> %[[LD]], <1 x i32> %[[LD]], <16 x i32> zeroinitializer
;
; CHECK: %polly.access.A = getelementptr i32, i32* %A, i64 0
; CHECK: %[[VP:[._a-zA-Z0-9]*]] = bitcast i32* %polly.access.A to <16 x i32>*
; CHECK: store <16 x i32> %[[SV]], <16 x i32>* %[[VP]], align 8
;
; void simple_stride(int *restrict A, int *restrict B) {
; for (int i = 0; i < 16; i++)
; A[i * 2] = B[i * 2];
; }
;
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
define void @simple_stride(i32* noalias %A, i32* noalias %B) {
entry:
br label %for.cond
for.cond: ; preds = %for.inc, %entry
%indvars.iv = phi i64 [ %indvars.iv.next, %for.inc ], [ 0, %entry ]
%exitcond = icmp ne i64 %indvars.iv, 16
br i1 %exitcond, label %for.body, label %for.end
for.body: ; preds = %for.cond
%tmp = shl nsw i64 %indvars.iv, 1
%arrayidx = getelementptr inbounds i32, i32* %B, i64 %tmp
%tmp4 = load i32, i32* %arrayidx, align 4
%tmp5 = shl nsw i64 %indvars.iv, 1
%arrayidx3 = getelementptr inbounds i32, i32* %A, i64 %tmp5
store i32 %tmp4, i32* %arrayidx3, align 4
br label %for.inc
for.inc: ; preds = %for.body
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
br label %for.cond
for.end: ; preds = %for.cond
ret void
}