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| author | Eric Christopher <echristo@gmail.com> | 2019-04-17 04:52:47 +0000 |
|---|---|---|
| committer | Eric Christopher <echristo@gmail.com> | 2019-04-17 04:52:47 +0000 |
| commit | cee313d288a4faf0355d76fb6e0e927e211d08a5 (patch) | |
| tree | d386075318d761197779a96e5d8fc0dc7b06342b /llvm/test/Transforms/LCSSA/basictest.ll | |
| parent | c3d6a929fdd92fd06d4304675ade8d7210ee711a (diff) | |
| download | bcm5719-llvm-cee313d288a4faf0355d76fb6e0e927e211d08a5.tar.gz bcm5719-llvm-cee313d288a4faf0355d76fb6e0e927e211d08a5.zip | |
Revert "Temporarily Revert "Add basic loop fusion pass.""
The reversion apparently deleted the test/Transforms directory.
Will be re-reverting again.
llvm-svn: 358552
Diffstat (limited to 'llvm/test/Transforms/LCSSA/basictest.ll')
| -rw-r--r-- | llvm/test/Transforms/LCSSA/basictest.ll | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/llvm/test/Transforms/LCSSA/basictest.ll b/llvm/test/Transforms/LCSSA/basictest.ll new file mode 100644 index 00000000000..7ca552039b6 --- /dev/null +++ b/llvm/test/Transforms/LCSSA/basictest.ll @@ -0,0 +1,30 @@ +; RUN: opt < %s -lcssa -S | FileCheck %s +; RUN: opt < %s -passes=lcssa -S | FileCheck %s +; RUN: opt < %s -debugify -lcssa -S | FileCheck -check-prefix=DEBUGIFY %s + +define void @lcssa(i1 %S2) { +; CHECK-LABEL: @lcssa +entry: + br label %loop.interior +loop.interior: ; preds = %post.if, %entry + br i1 %S2, label %if.true, label %if.false +if.true: ; preds = %loop.interior + %X1 = add i32 0, 0 ; <i32> [#uses=1] + br label %post.if +if.false: ; preds = %loop.interior + %X2 = add i32 0, 1 ; <i32> [#uses=1] + br label %post.if +post.if: ; preds = %if.false, %if.true + %X3 = phi i32 [ %X1, %if.true ], [ %X2, %if.false ] ; <i32> [#uses=1] + br i1 %S2, label %loop.exit, label %loop.interior +loop.exit: ; preds = %post.if +; CHECK: %X3.lcssa = phi i32 +; DEBUGIFY: %X3.lcssa = phi i32 {{.*}}, !dbg ![[DbgLoc:[0-9]+]] +; DEBUGIFY-NEXT: call void @llvm.dbg.value(metadata i32 %X3.lcssa +; CHECK: %X4 = add i32 3, %X3.lcssa + %X4 = add i32 3, %X3 ; <i32> [#uses=0] + ret void +} + +; Make sure the lcssa phi has %X3's debug location +; DEBUGIFY: ![[DbgLoc]] = !DILocation(line: 7 |
