31 lines
933 B
LLVM
31 lines
933 B
LLVM
|
; RUN: opt -loop-unroll -unroll-count=2 -S < %s | FileCheck %s
|
||
|
|
;
|
||
|
|
; Check whether the llvm.loop.unroll.count loop property overrides
|
||
|
|
; llvm.loop.disable_nonforced.
|
||
|
|
;
|
||
|
|
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
|
||
|
|
|
||
|
|
; CHECK-LABEL: @disable_nonforced_count(
|
||
|
|
; CHECK: store
|
||
|
|
; CHECK: store
|
||
|
|
; CHECK-NOT: store
|
||
|
|
define void @disable_nonforced_count(i32* nocapture %a) {
|
||
|
|
entry:
|
||
|
|
br label %for.body
|
||
|
|
|
||
|
|
for.body:
|
||
|
|
%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
|
||
|
|
%arrayidx = getelementptr inbounds i32, i32* %a, i64 %indvars.iv
|
||
|
|
%0 = load i32, i32* %arrayidx, align 4
|
||
|
|
%inc = add nsw i32 %0, 1
|
||
|
|
store i32 %inc, i32* %arrayidx, align 4
|
||
|
|
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
|
||
|
|
%exitcond = icmp eq i64 %indvars.iv.next, 64
|
||
|
|
br i1 %exitcond, label %for.end, label %for.body, !llvm.loop !0
|
||
|
|
|
||
|
|
for.end:
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
!0 = !{!0, !{!"llvm.loop.disable_nonforced"}, !{!"llvm.loop.unroll.count", i32 2}}
|