Files
clang-p2996/polly/test/Isl/CodeGen/simple_vec_stride_negative_one.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

38 lines
1.2 KiB
LLVM

; RUN: opt %loadPolly -polly-codegen -polly-vectorizer=polly -S < %s | FileCheck %s
; ModuleID = 'reverse.c'
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
;int A[100];
;void foo() {
; for (int i=3; i >= 0; i--)
; A[i]+=1;
;}
@A = common global [100 x i32] zeroinitializer, align 16
; Function Attrs: nounwind uwtable
define void @foo() #0 {
entry:
br label %for.body
for.body: ; preds = %entry, %for.body
%indvars.iv = phi i64 [ 3, %entry ], [ %indvars.iv.next, %for.body ]
%arrayidx = getelementptr inbounds [100 x i32], [100 x i32]* @A, i64 0, i64 %indvars.iv
%0 = load i32, i32* %arrayidx, align 4
%add = add nsw i32 %0, 1
store i32 %add, i32* %arrayidx, align 4
%indvars.iv.next = add nsw i64 %indvars.iv, -1
%1 = trunc i64 %indvars.iv to i32
%cmp = icmp sgt i32 %1, 0
br i1 %cmp, label %for.body, label %for.end
for.end: ; preds = %for.body
ret void
}
; CHECK: @foo
; CHECK: [[LOAD:%[a-zA-Z0-9_]+]] = load <4 x i32>, <4 x i32>*
; CHECK: [[REVERSE_LOAD:%[a-zA-Z0-9_]+reverse]] = shufflevector <4 x i32> [[LOAD]], <4 x i32> [[LOAD]], <4 x i32> <i32 3, i32 2, i32 1, i32 0>