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| author | Xinliang David Li <davidxl@google.com> | 2017-12-05 17:19:41 +0000 |
|---|---|---|
| committer | Xinliang David Li <davidxl@google.com> | 2017-12-05 17:19:41 +0000 |
| commit | cc35bc9efcec964616f15daa02a41dbaddf5e29b (patch) | |
| tree | 13e27360f0dacd2ef2db3bc188a8bdaf1bef126f /llvm/test/Transforms/PGOProfile/infinite_loop_gen.ll | |
| parent | 748d8a28ef21890efd1aa4daa74af1bcac52d8a1 (diff) | |
| download | bcm5719-llvm-cc35bc9efcec964616f15daa02a41dbaddf5e29b.tar.gz bcm5719-llvm-cc35bc9efcec964616f15daa02a41dbaddf5e29b.zip | |
[PGO] detect infinite loop and form MST properly
Differential Revision: http://reviews.llvm.org/D40702
llvm-svn: 319794
Diffstat (limited to 'llvm/test/Transforms/PGOProfile/infinite_loop_gen.ll')
| -rw-r--r-- | llvm/test/Transforms/PGOProfile/infinite_loop_gen.ll | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/llvm/test/Transforms/PGOProfile/infinite_loop_gen.ll b/llvm/test/Transforms/PGOProfile/infinite_loop_gen.ll new file mode 100644 index 00000000000..f200fc3857a --- /dev/null +++ b/llvm/test/Transforms/PGOProfile/infinite_loop_gen.ll @@ -0,0 +1,18 @@ +; RUN: opt < %s -pgo-instr-gen -S -o - | FileCheck %s + +define void @foo() { +entry: + br label %while.body +; CHECK: llvm.instrprof.increment + + while.body: ; preds = %entry, %while.body +; CHECK: llvm.instrprof.increment + call void (...) @bar() #2 + br label %while.body +} + +declare void @bar(...) + + +attributes #0 = { nounwind } + |
