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| author | Manman Ren <mren@apple.com> | 2012-09-17 21:30:40 +0000 |
|---|---|---|
| committer | Manman Ren <mren@apple.com> | 2012-09-17 21:30:40 +0000 |
| commit | 2d4c10fc4962ec0bba20966be3f2d490cdbe914e (patch) | |
| tree | f5db12ea8b7440905cb084b51df75a1b59efb75d /llvm/test/Transforms/SimplifyCFG | |
| parent | b14a3b24b15b9084fe30c6fe9678ff8e321e1ed8 (diff) | |
| download | bcm5719-llvm-2d4c10fc4962ec0bba20966be3f2d490cdbe914e.tar.gz bcm5719-llvm-2d4c10fc4962ec0bba20966be3f2d490cdbe914e.zip | |
PGO: preserve branch-weight metadata when simplifying two branches with a common
destination in SimplifyCondBranchToCondBranch.
llvm-svn: 164054
Diffstat (limited to 'llvm/test/Transforms/SimplifyCFG')
| -rw-r--r-- | llvm/test/Transforms/SimplifyCFG/preserve-branchweights.ll | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/llvm/test/Transforms/SimplifyCFG/preserve-branchweights.ll b/llvm/test/Transforms/SimplifyCFG/preserve-branchweights.ll index 1564e4e11d7..98a47e8e0c8 100644 --- a/llvm/test/Transforms/SimplifyCFG/preserve-branchweights.ll +++ b/llvm/test/Transforms/SimplifyCFG/preserve-branchweights.ll @@ -174,16 +174,37 @@ Z: ret void } +define void @test7(i1 %a, i1 %b) { +; CHECK: @test7 +entry: + %c = or i1 %b, false + br i1 %a, label %Y, label %X, !prof !0 +; CHECK: br i1 %brmerge, label %Y, label %Z, !prof !5 + +X: + br i1 %c, label %Y, label %Z, !prof !6 + +Y: + call void @helper(i32 0) + ret void + +Z: + call void @helper(i32 1) + ret void +} + !0 = metadata !{metadata !"branch_weights", i32 3, i32 5} !1 = metadata !{metadata !"branch_weights", i32 1, i32 1} !2 = metadata !{metadata !"branch_weights", i32 1, i32 2} !3 = metadata !{metadata !"branch_weights", i32 4, i32 3, i32 2, i32 1} !4 = metadata !{metadata !"branch_weights", i32 4, i32 3, i32 2, i32 1} !5 = metadata !{metadata !"branch_weights", i32 7, i32 6, i32 5} +!6 = metadata !{metadata !"branch_weights", i32 1, i32 3} ; CHECK: !0 = metadata !{metadata !"branch_weights", i32 5, i32 11} ; CHECK: !1 = metadata !{metadata !"branch_weights", i32 1, i32 5} ; CHECK: !2 = metadata !{metadata !"branch_weights", i32 7, i32 1, i32 2} ; CHECK: !3 = metadata !{metadata !"branch_weights", i32 49, i32 12, i32 24, i32 35} ; CHECK: !4 = metadata !{metadata !"branch_weights", i32 11, i32 5} -; CHECK-NOT: !5 +; CHECK: !5 = metadata !{metadata !"branch_weights", i32 17, i32 15} +; CHECK-NOT: !6 |
