invariant-load-hoisting-with-variable-lower-bound.ll
1.96 KB
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; RUN: opt %loadPolly -analyze -polly-use-llvm-names -polly-scops \
; RUN: -polly-invariant-load-hoisting < %s | FileCheck %s -check-prefix=SCOP
; RUN: opt %loadPolly -S -polly-use-llvm-names -polly-codegen-ppcg \
; RUN: -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: [beginval] -> { Stmt_entry_split[] -> MemRef_begin[0] };
; SCOP-NEXT: Execution Context: [beginval] -> { : }
; SCOP-NEXT: }
; Check that the kernel launch is generated in the host IR.
; This declaration would not have been generated unless a kernel launch exists.
; HOST-IR: declare void @polly_launchKernel(i8*, i32, i32, i32, i32, i32, i8*)
;
; void f(int *begin, int *arr) {
; for (int i = *begin; i < 100; i++) {
; arr[i] = 0;
; }
; }
target datalayout = "e-m:o-p:32:32-f64:32:64-f80:128-n8:16:32-S128"
define void @f(i32* %begin, i32* %arr) {
entry:
br label %entry.split
entry.split: ; preds = %entry
%beginval = load i32, i32* %begin, align 4
%cmp1 = icmp slt i32 %beginval, 100
br i1 %cmp1, label %for.body, label %for.end
for.body: ; preds = %for.body.lr.ph, %for.body
%ival = phi i32 [ %beginval, %entry.split ], [ %inc, %for.body ]
%arrayidx = getelementptr inbounds i32, i32* %arr, i32 %ival
store i32 0, i32* %arrayidx, align 4
%inc = add nsw i32 %ival, 1
%cmp = icmp slt i32 %ival, 99
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
}