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authorDehao Chen <dehao@google.com>2016-10-07 15:21:31 +0000
committerDehao Chen <dehao@google.com>2016-10-07 15:21:31 +0000
commit6e0c8446db8bebe774ff6e927d5d4c5503ff338d (patch)
tree9964726d49ee90c38a35abe9d23696469bb4c955 /llvm/lib/Transforms/Utils
parente239e951609a573c485ff7dacff0573068e8879d (diff)
downloadbcm5719-llvm-6e0c8446db8bebe774ff6e927d5d4c5503ff338d.tar.gz
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Invoke add-discriminator at -g0 -fsample-profile
Summary: -fsample-profile needs discriminator, which will not be added if built with -g0. This patch makes sure the discriminator is added for sample-profile at -g0. A followup patch will be send out to update clang tests. Reviewers: davidxl, dblaikie, echristo, dnovillo Subscribers: mehdi_amini, probinson, llvm-commits Differential Revision: https://reviews.llvm.org/D25132 llvm-svn: 283565
Diffstat (limited to 'llvm/lib/Transforms/Utils')
-rw-r--r--llvm/lib/Transforms/Utils/AddDiscriminators.cpp5
1 files changed, 1 insertions, 4 deletions
diff --git a/llvm/lib/Transforms/Utils/AddDiscriminators.cpp b/llvm/lib/Transforms/Utils/AddDiscriminators.cpp
index ee409220b46..45b4fab07ed 100644
--- a/llvm/lib/Transforms/Utils/AddDiscriminators.cpp
+++ b/llvm/lib/Transforms/Utils/AddDiscriminators.cpp
@@ -159,10 +159,7 @@ static bool addDiscriminators(Function &F) {
// If the function has debug information, but the user has disabled
// discriminators, do nothing.
// Simlarly, if the function has no debug info, do nothing.
- // Finally, if this module is built with dwarf versions earlier than 4,
- // do nothing (discriminator support is a DWARF 4 feature).
- if (NoDiscriminators || !F.getSubprogram() ||
- F.getParent()->getDwarfVersion() < 4)
+ if (NoDiscriminators || !F.getSubprogram())
return false;
bool Changed = false;
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