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llvm-project/llvm/test/Transforms/LoopVersioning/basic.ll

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[BasicAA] Rename deprecated -basicaa to -basic-aa Follow-up to D82607 Revert an accidental change (empty.ll) of D82683
2020-06-27 11:41:37 +08:00
; RUN: opt -basic-aa -loop-versioning -S < %s | FileCheck %s
[NewPM][LoopVersioning] Port LoopVersioning to NPM Reviewed By: ychen, fhahn Differential Revision: https://reviews.llvm.org/D85063
2020-08-01 08:30:30 +08:00
; RUN: opt -aa-pipeline=basic-aa -passes=loop-versioning -S < %s | FileCheck %s
Revert "Temporarily Revert "Add basic loop fusion pass."" The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
2019-04-17 12:52:47 +08:00
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
; Version this loop with overlap checks between a, c and b, c.
define void @f(i32* %a, i32* %b, i32* %c) {
entry:
br label %for.body
; CHECK: for.body.lver.check:
; CHECK: icmp
; CHECK: icmp
; CHECK: icmp
; CHECK: icmp
; CHECK-NOT: icmp
; CHECK: br i1 %memcheck.conflict, label %for.body.ph.lver.orig, label %for.body.ph
; CHECK: for.body.ph.lver.orig:
; CHECK: for.body.lver.orig:
[LoopVersioning] Form dedicated exits for versioned loop to preserve simplify form The exit blocks of the versioned and non-versioned loops are not dedicated and thus the two loops are not in simplify form. Insert dummy exit blocks after loop versioning with `formDedicatedExits()` to preserve the simplify form for subsequence passes. Reviewed By: aeubanks Differential Revision: https://reviews.llvm.org/D89569
2020-10-24 21:39:42 +08:00
; CHECK: br i1 %exitcond.lver.orig, label %for.end.loopexit, label %for.body.lver.orig
Revert "Temporarily Revert "Add basic loop fusion pass."" The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
2019-04-17 12:52:47 +08:00
; CHECK: for.body.ph:
; CHECK: for.body:
[LoopVersioning] Form dedicated exits for versioned loop to preserve simplify form The exit blocks of the versioned and non-versioned loops are not dedicated and thus the two loops are not in simplify form. Insert dummy exit blocks after loop versioning with `formDedicatedExits()` to preserve the simplify form for subsequence passes. Reviewed By: aeubanks Differential Revision: https://reviews.llvm.org/D89569
2020-10-24 21:39:42 +08:00
; CHECK: br i1 %exitcond, label %for.end.loopexit12, label %for.body
; CHECK: for.end.loopexit:
; CHECK: br label %for.end
; CHECK: for.end.loopexit12:
; CHECK: br label %for.end
Revert "Temporarily Revert "Add basic loop fusion pass."" The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
2019-04-17 12:52:47 +08:00
; CHECK: for.end:
for.body: ; preds = %for.body, %entry
%ind = phi i64 [ 0, %entry ], [ %add, %for.body ]
%arrayidxA = getelementptr inbounds i32, i32* %a, i64 %ind
%loadA = load i32, i32* %arrayidxA, align 4
%arrayidxB = getelementptr inbounds i32, i32* %b, i64 %ind
%loadB = load i32, i32* %arrayidxB, align 4
%mulC = mul i32 %loadA, %loadB
%arrayidxC = getelementptr inbounds i32, i32* %c, i64 %ind
store i32 %mulC, i32* %arrayidxC, align 4
%add = add nuw nsw i64 %ind, 1
%exitcond = icmp eq i64 %add, 20
br i1 %exitcond, label %for.end, label %for.body
for.end: ; preds = %for.body
ret void
}