64 lines
3.2 KiB
LLVM
64 lines
3.2 KiB
LLVM
|
; RUN: opt < %s -S -loop-unroll -unroll-count=2 | FileCheck %s -check-prefixes=COUNT,COMMON
|
||
|
|
; RUN: opt < %s -S -loop-unroll -unroll-runtime=true -unroll-runtime-epilog=true | FileCheck %s -check-prefixes=EPILOG,COMMON
|
||
|
|
; RUN: opt < %s -S -loop-unroll -unroll-runtime=true -unroll-runtime-epilog=false | FileCheck %s -check-prefixes=PROLOG,COMMON
|
||
|
|
;
|
||
|
|
; Check that followup-attributes are applied after LoopUnroll.
|
||
|
|
;
|
||
|
|
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
|
||
|
|
|
||
|
|
define i32 @test(i32* nocapture %a, i32 %n) nounwind uwtable readonly {
|
||
|
|
entry:
|
||
|
|
%cmp1 = icmp eq i32 %n, 0
|
||
|
|
br i1 %cmp1, label %for.end, label %for.body
|
||
|
|
|
||
|
|
for.body: ; preds = %for.body, %entry
|
||
|
|
%indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %entry ]
|
||
|
|
%sum.02 = phi i32 [ %add, %for.body ], [ 0, %entry ]
|
||
|
|
%arrayidx = getelementptr inbounds i32, i32* %a, i64 %indvars.iv
|
||
|
|
%0 = load i32, i32* %arrayidx, align 4
|
||
|
|
%add = add nsw i32 %0, %sum.02
|
||
|
|
%indvars.iv.next = add i64 %indvars.iv, 1
|
||
|
|
%lftr.wideiv = trunc i64 %indvars.iv.next to i32
|
||
|
|
%exitcond = icmp eq i32 %lftr.wideiv, %n
|
||
|
|
br i1 %exitcond, label %for.end, label %for.body, !llvm.loop !4
|
||
|
|
|
||
|
|
for.end: ; preds = %for.body, %entry
|
||
|
|
%sum.0.lcssa = phi i32 [ 0, %entry ], [ %add, %for.body ]
|
||
|
|
ret i32 %sum.0.lcssa
|
||
|
|
}
|
||
|
|
|
||
|
|
!1 = !{!"llvm.loop.unroll.followup_all", !{!"FollowupAll"}}
|
||
|
|
!2 = !{!"llvm.loop.unroll.followup_unrolled", !{!"FollowupUnrolled"}}
|
||
|
|
!3 = !{!"llvm.loop.unroll.followup_remainder", !{!"FollowupRemainder"}}
|
||
|
|
!4 = distinct !{!4, !1, !2, !3}
|
||
|
|
|
||
|
|
|
||
|
|
; COMMON-LABEL: @test(
|
||
|
|
|
||
|
|
|
||
|
|
; COUNT: br i1 %exitcond.1, label %for.end.loopexit, label %for.body, !llvm.loop ![[LOOP:[0-9]+]]
|
||
|
|
|
||
|
|
; COUNT: ![[FOLLOWUP_ALL:[0-9]+]] = !{!"FollowupAll"}
|
||
|
|
; COUNT: ![[FOLLOWUP_UNROLLED:[0-9]+]] = !{!"FollowupUnrolled"}
|
||
|
|
; COUNT: ![[LOOP]] = distinct !{![[LOOP]], ![[FOLLOWUP_ALL]], ![[FOLLOWUP_UNROLLED]]}
|
||
|
|
|
||
|
|
|
||
|
|
; EPILOG: br i1 %niter.ncmp.7, label %for.end.loopexit.unr-lcssa.loopexit, label %for.body, !llvm.loop ![[LOOP_0:[0-9]+]]
|
||
|
|
; EPILOG: br i1 %epil.iter.cmp, label %for.body.epil, label %for.end.loopexit.epilog-lcssa, !llvm.loop ![[LOOP_2:[0-9]+]]
|
||
|
|
|
||
|
|
; EPILOG: ![[LOOP_0]] = distinct !{![[LOOP_0]], ![[FOLLOWUP_ALL:[0-9]+]], ![[FOLLOWUP_UNROLLED:[0-9]+]]}
|
||
|
|
; EPILOG: ![[FOLLOWUP_ALL]] = !{!"FollowupAll"}
|
||
|
|
; EPILOG: ![[FOLLOWUP_UNROLLED]] = !{!"FollowupUnrolled"}
|
||
|
|
; EPILOG: ![[LOOP_2]] = distinct !{![[LOOP_2]], ![[FOLLOWUP_ALL]], ![[FOLLOWUP_REMAINDER:[0-9]+]]}
|
||
|
|
; EPILOG: ![[FOLLOWUP_REMAINDER]] = !{!"FollowupRemainder"}
|
||
|
|
|
||
|
|
|
||
|
|
; PROLOG: br i1 %prol.iter.cmp, label %for.body.prol, label %for.body.prol.loopexit.unr-lcssa, !llvm.loop ![[LOOP_0:[0-9]+]]
|
||
|
|
; PROLOG: br i1 %exitcond.7, label %for.end.loopexit.unr-lcssa, label %for.body, !llvm.loop ![[LOOP_2:[0-9]+]]
|
||
|
|
|
||
|
|
; PROLOG: ![[LOOP_0]] = distinct !{![[LOOP_0]], ![[FOLLOWUP_ALL:[0-9]+]], ![[FOLLOWUP_REMAINDER:[0-9]+]]}
|
||
|
|
; PROLOG: ![[FOLLOWUP_ALL]] = !{!"FollowupAll"}
|
||
|
|
; PROLOG: ![[FOLLOWUP_REMAINDER]] = !{!"FollowupRemainder"}
|
||
|
|
; PROLOG: ![[LOOP_2]] = distinct !{![[LOOP_2]], ![[FOLLOWUP_ALL]], ![[FOLLOWUP_UNROLLED:[0-9]+]]}
|
||
|
|
; PROLOG: ![[FOLLOWUP_UNROLLED]] = !{!"FollowupUnrolled"}
|