llvm-project/polly/test/ScopInfo/reduction_escaping_intermed...

73 lines
2.3 KiB
LLVM
Raw Normal View History

; RUN: opt %loadPolly -basicaa -polly-scops -analyze < %s | FileCheck %s
;
; void f(int N, int * restrict sums, int * restrict escape) {
; int i, j;
; for (i = 0; i < 1024; i++) {
; for (j = 0; j < 1024; j++) {
; sums[i] += 5;
; escape[N-j] = escape[i] + sums[i-1];
; }
; }
; }
;
; CHECK: Reduction Type: NONE
; CHECK: sums
; CHECK: Reduction Type: NONE
; CHECK: sums
; CHECK: Reduction Type: NONE
; CHECK: escape
; CHECK: Reduction Type: NONE
; CHECK: sums
; CHECK: Reduction Type: NONE
; CHECK: escape
target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-n32-S64"
define void @f(i32 %N, i32* noalias %sums, i32* noalias %escape) {
entry:
br label %for.cond
for.cond: ; preds = %for.inc10, %entry
%i.0 = phi i32 [ 0, %entry ], [ %inc11, %for.inc10 ]
%exitcond1 = icmp ne i32 %i.0, 1024
br i1 %exitcond1, label %for.body, label %for.end12
for.body: ; preds = %for.cond
br label %for.cond1
for.cond1: ; preds = %for.inc, %for.body
%j.0 = phi i32 [ 0, %for.body ], [ %inc, %for.inc ]
%exitcond = icmp ne i32 %j.0, 1024
br i1 %exitcond, label %for.body3, label %for.end
for.body3: ; preds = %for.cond1
%arrayidx = getelementptr inbounds i32, i32* %sums, i32 %i.0
%tmp = load i32, i32* %arrayidx, align 4
%add = add nsw i32 %tmp, 5
store i32 %add, i32* %arrayidx, align 4
%arrayidx4 = getelementptr inbounds i32, i32* %escape, i32 %i.0
%tmp2 = load i32, i32* %arrayidx4, align 4
%sub = add nsw i32 %i.0, -1
%arrayidx5 = getelementptr inbounds i32, i32* %sums, i32 %sub
%tmp3 = load i32, i32* %arrayidx5, align 4
%add6 = add nsw i32 %tmp2, %tmp3
%sub7 = sub nsw i32 %N, %i.0
%add8 = add nsw i32 %sub7, %j.0
%arrayidx9 = getelementptr inbounds i32, i32* %escape, i32 %add8
store i32 %add6, i32* %arrayidx9, align 4
br label %for.inc
for.inc: ; preds = %for.body3
%inc = add nsw i32 %j.0, 1
br label %for.cond1
for.end: ; preds = %for.cond1
br label %for.inc10
for.inc10: ; preds = %for.end
%inc11 = add nsw i32 %i.0, 1
br label %for.cond
for.end12: ; preds = %for.cond
ret void
}