forked from OSchip/llvm-project
68 lines
1.5 KiB
LLVM
68 lines
1.5 KiB
LLVM
; RUN: opt %loadPolly -polly-stmt-granularity=bb -polly-print-delicm -disable-output -pass-remarks-missed=polly-delicm < %s 2>&1 | FileCheck %s
|
|
;
|
|
; void func(double *A) {
|
|
; for (int j = 0; j < 2; j += 1) { /* outer */
|
|
; double phi = 0.0;
|
|
; for (int i = 0; i < 4; i += 1) /* reduction */
|
|
; phi += 4.2;
|
|
; A[j] = phi;
|
|
; (void)A[j];
|
|
; }
|
|
; }
|
|
;
|
|
define void @func(double* noalias nonnull %A) {
|
|
entry:
|
|
br label %outer.preheader
|
|
|
|
outer.preheader:
|
|
br label %outer.for
|
|
|
|
outer.for:
|
|
%j = phi i32 [0, %outer.preheader], [%j.inc, %outer.inc]
|
|
%j.cmp = icmp slt i32 %j, 2
|
|
br i1 %j.cmp, label %reduction.preheader, label %outer.exit
|
|
|
|
|
|
reduction.preheader:
|
|
br label %reduction.for
|
|
|
|
reduction.for:
|
|
%i = phi i32 [0, %reduction.preheader], [%i.inc, %reduction.inc]
|
|
%phi = phi double [0.0, %reduction.preheader], [%add, %reduction.inc]
|
|
%i.cmp = icmp slt i32 %i, 4
|
|
br i1 %i.cmp, label %body, label %reduction.exit
|
|
|
|
|
|
|
|
body:
|
|
%add = fadd double %phi, 4.2
|
|
br label %reduction.inc
|
|
|
|
|
|
|
|
reduction.inc:
|
|
%i.inc = add nuw nsw i32 %i, 1
|
|
br label %reduction.for
|
|
|
|
reduction.exit:
|
|
%A_idx = getelementptr inbounds double, double* %A, i32 %j
|
|
store double %phi, double* %A_idx
|
|
%dummy = load double, double* %A_idx
|
|
br label %outer.inc
|
|
|
|
|
|
|
|
outer.inc:
|
|
%j.inc = add nuw nsw i32 %j, 1
|
|
br label %outer.for
|
|
|
|
outer.exit:
|
|
br label %return
|
|
|
|
return:
|
|
ret void
|
|
}
|
|
|
|
|
|
; CHECK: load after store of same element in same statement
|