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; RUN: opt %loadPolly -polly-invariant-load-hoisting -polly-print-scops -disable-output < %s | FileCheck %s -check-prefix=SCOP
; RUN: opt %loadPolly -S -polly-use-llvm-names -polly-codegen-ppcg -polly-invariant-load-hoisting < %s | FileCheck %s -check-prefix=HOST-IR
; REQUIRES: pollyacc
; Check that we detect a scop with invariant accesses.
; SCOP: Function: f
; SCOP-NEXT: Region: %entry.split---%for.end
; SCOP-NEXT: Max Loop Depth: 1
; SCOP-NEXT: Invariant Accesses: {
; SCOP-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
; SCOP-NEXT: [tmp2] -> { Stmt_for_body[i0] -> MemRef_idx[0] };
; SCOP-NEXT: Execution Context: [tmp2] -> { : }
; SCOP-NEXT: }
; Check that kernel launch is generated in host IR.
; the declare would not be generated unless a call to a kernel exists.
; HOST-IR: declare void @polly_launchKernel(i8*, i32, i32, i32, i32, i32, i8*)
; Check if we generate GPU code for simple loop with variable upper bound.
; This always worked, but have this test to prevent regressions.
; void f(int *idx, int *arr) {
; for (int i = 0; i < *idx; i++) {
; arr[i] = 0;
; }
; }
;
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
define void @f(i32* %idx, i32* %arr) {
entry:
br label %entry.split
entry.split: ; preds = %entry
%tmp21 = load i32, i32* %idx, align 4
%cmp2 = icmp sgt i32 %tmp21, 0
br i1 %cmp2, label %for.body.lr.ph, label %for.end
for.body.lr.ph: ; preds = %entry.split
br label %for.body
for.body: ; preds = %for.body.lr.ph, %for.body
%indvars.iv = phi i64 [ 0, %for.body.lr.ph ], [ %indvars.iv.next, %for.body ]
%arrayidx = getelementptr inbounds i32, i32* %arr, i64 %indvars.iv
store i32 0, i32* %arrayidx, align 4
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
%tmp2 = load i32, i32* %idx, align 4
%0 = sext i32 %tmp2 to i64
%cmp = icmp slt i64 %indvars.iv.next, %0
br i1 %cmp, label %for.body, label %for.cond.for.end_crit_edge
for.cond.for.end_crit_edge: ; preds = %for.body
br label %for.end
for.end: ; preds = %for.cond.for.end_crit_edge, %entry.split
ret void
}
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