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Merge "Add additional flag required for Flow Sensitive AFDO" into main am: c1545e8dbf am: 4bc1562a33 am: f9aeb3baaa

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Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2788714

Change-Id: I78ddd75d37fef4fc9cd2ad32300feb09b25fca0e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
This commit is contained in:
Yi Kong
2023-10-18 08:50:48 +00:00
committed by Automerger Merge Worker
parent cee8b329e1 f9aeb3baaa
commit 5a48db3b4a
1 changed files with 3 additions and 0 deletions
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3
cc/afdo.go
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@@ -84,7 +84,10 @@ func (afdo *afdo) flags(ctx ModuleContext, flags Flags) Flags {
// 3. Make the profile searchable by the build system. So it's used the next time the binary
// is built.
flags.Local.CFlags = append([]string{"-funique-internal-linkage-names"}, flags.Local.CFlags...)
// Flags for Flow Sensitive AutoFDO
flags.Local.CFlags = append([]string{"-mllvm", "-enable-fs-discriminator=true"}, flags.Local.CFlags...)
// TODO(b/266595187): Remove the following feature once it is enabled in LLVM by default.
flags.Local.CFlags = append([]string{"-mllvm", "-improved-fs-discriminator=true"}, flags.Local.CFlags...)
}
if path := afdo.Properties.FdoProfilePath; path != nil {
// The flags are prepended to allow overriding.