forked from OSchip/llvm-project
39 lines
970 B
LLVM
39 lines
970 B
LLVM
; RUN: opt %loadPolly -polly-opt-isl -polly-pragma-based-opts=1 -analyze < %s | FileCheck %s --match-full-lines
|
|
; RUN: opt %loadPolly -polly-opt-isl -polly-pragma-based-opts=0 -analyze < %s | FileCheck %s --match-full-lines
|
|
;
|
|
; Unrolling with heuristic factor.
|
|
; Currently not supported and expected to be handled by LLVM's unroll pass.
|
|
;
|
|
define void @func(i32 %n, double* noalias nonnull %A) {
|
|
entry:
|
|
br label %for
|
|
|
|
for:
|
|
%j = phi i32 [0, %entry], [%j.inc, %inc]
|
|
%j.cmp = icmp slt i32 %j, %n
|
|
br i1 %j.cmp, label %body, label %exit
|
|
|
|
body:
|
|
store double 42.0, double* %A
|
|
br label %inc
|
|
|
|
inc:
|
|
%j.inc = add nuw nsw i32 %j, 1
|
|
br label %for, !llvm.loop !2
|
|
|
|
exit:
|
|
br label %return
|
|
|
|
return:
|
|
ret void
|
|
}
|
|
|
|
|
|
!2 = distinct !{!2, !4}
|
|
!4 = !{!"llvm.loop.unroll.enable", i1 true}
|
|
|
|
|
|
; CHECK-LABEL: Printing analysis 'Polly - Optimize schedule of SCoP' for region: 'for => return' in function 'func':
|
|
; CHECK-NEXT: Calculated schedule:
|
|
; CHECK-NEXT: n/a
|