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llvm-mirror/test/Transforms/LoopVersioning/lcssa.ll
Eric Christopher a62270de2c 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 04:52:47 +00:00

73 lines
2.3 KiB
LLVM

; RUN: opt -basicaa -loop-versioning -S < %s | FileCheck %s
target triple = "x86_64-unknown-linux-gnu"
define void @fill(i8** %ls1.20, i8** %ls2.21, i8* %cse3.22) {
; CHECK: bb1.lver.check:
; CHECK: br i1 %memcheck.conflict, label %bb1.ph.lver.orig, label %bb1.ph
bb1.ph:
%ls1.20.promoted = load i8*, i8** %ls1.20
%ls2.21.promoted = load i8*, i8** %ls2.21
br label %bb1
bb1:
%_tmp302 = phi i8* [ %ls2.21.promoted, %bb1.ph ], [ %_tmp30, %bb1 ]
%_tmp281 = phi i8* [ %ls1.20.promoted, %bb1.ph ], [ %_tmp28, %bb1 ]
%_tmp14 = getelementptr i8, i8* %_tmp281, i16 -1
%_tmp15 = load i8, i8* %_tmp14
%add = add i8 %_tmp15, 1
store i8 %add, i8* %_tmp281
store i8 %add, i8* %_tmp302
%_tmp28 = getelementptr i8, i8* %_tmp281, i16 1
%_tmp30 = getelementptr i8, i8* %_tmp302, i16 1
br i1 false, label %bb1, label %bb3.loopexit
bb3.loopexit:
%_tmp30.lcssa = phi i8* [ %_tmp30, %bb1 ]
%_tmp15.lcssa = phi i8 [ %_tmp15, %bb1 ]
%_tmp28.lcssa = phi i8* [ %_tmp28, %bb1 ]
store i8* %_tmp28.lcssa, i8** %ls1.20
store i8 %_tmp15.lcssa, i8* %cse3.22
store i8* %_tmp30.lcssa, i8** %ls2.21
br label %bb3
bb3:
ret void
}
define void @fill_no_null_opt(i8** %ls1.20, i8** %ls2.21, i8* %cse3.22) #0 {
; CHECK-LABEL: fill_no_null_opt(
; CHECK: bb1.lver.check:
; CHECK: %lver.safe = or i1 %memcheck.conflict, %{{.*}}
; CHECK: br i1 %lver.safe, label %bb1.ph.lver.orig, label %bb1.ph
bb1.ph:
%ls1.20.promoted = load i8*, i8** %ls1.20
%ls2.21.promoted = load i8*, i8** %ls2.21
br label %bb1
bb1:
%_tmp302 = phi i8* [ %ls2.21.promoted, %bb1.ph ], [ %_tmp30, %bb1 ]
%_tmp281 = phi i8* [ %ls1.20.promoted, %bb1.ph ], [ %_tmp28, %bb1 ]
%_tmp14 = getelementptr i8, i8* %_tmp281, i16 -1
%_tmp15 = load i8, i8* %_tmp14
%add = add i8 %_tmp15, 1
store i8 %add, i8* %_tmp281
store i8 %add, i8* %_tmp302
%_tmp28 = getelementptr i8, i8* %_tmp281, i16 1
%_tmp30 = getelementptr i8, i8* %_tmp302, i16 1
br i1 false, label %bb1, label %bb3.loopexit
bb3.loopexit:
%_tmp30.lcssa = phi i8* [ %_tmp30, %bb1 ]
%_tmp15.lcssa = phi i8 [ %_tmp15, %bb1 ]
%_tmp28.lcssa = phi i8* [ %_tmp28, %bb1 ]
store i8* %_tmp28.lcssa, i8** %ls1.20
store i8 %_tmp15.lcssa, i8* %cse3.22
store i8* %_tmp30.lcssa, i8** %ls2.21
br label %bb3
bb3:
ret void
}
attributes #0 = { "null-pointer-is-valid"="true" }