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@@ -492,6 +486,10 @@ uint64_t BoltAddressTranslation::translate(uint64_t
FuncAddress,
const uint32_t Val = KeyVal->second >> 1; // dropping BRANCHENTRY bit
if (IsBranchSrc) {
+// Branch entry is found in BAT
+if (KeyVal->first == Offset && KeyVal->second &
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@@ -478,18 +478,34 @@ uint64_t BoltAddressTranslation::translate(uint64_t
FuncAddress,
return Offset;
const MapTy = Iter->second;
+ if (IsBranchSrc) {
+// Try exact lookup first
+auto KeyVal = Map.find(Offset);
+if (KeyVal != Map.end() && KeyVal->second &
@@ -478,18 +478,34 @@ uint64_t BoltAddressTranslation::translate(uint64_t
FuncAddress,
return Offset;
const MapTy = Iter->second;
+ if (IsBranchSrc) {
+// Try exact lookup first
+auto KeyVal = Map.find(Offset);
+if (KeyVal != Map.end() && KeyVal->second &
@@ -24,6 +24,32 @@ READ-BAT-CHECK-NOT: BOLT-ERROR: unable to save profile in
YAML format for input
READ-BAT-CHECK: BOLT-INFO: Parsed 5 BAT entries
READ-BAT-CHECK: PERF2BOLT: read 79 aggregated LBR entries
+# Check handling of a branch not in BAT (added by BOLT)
+RUN:
@@ -48,10 +48,9 @@ static cl::opt InputFilename(cl::Positional,
cl::Required,
cl::cat(BatDumpCategory));
-static cl::list Translate("translate",
-
@@ -24,6 +24,32 @@ READ-BAT-CHECK-NOT: BOLT-ERROR: unable to save profile in
YAML format for input
READ-BAT-CHECK: BOLT-INFO: Parsed 5 BAT entries
READ-BAT-CHECK: PERF2BOLT: read 79 aggregated LBR entries
+# Check handling of a branch not in BAT (added by BOLT)
+RUN:
@@ -478,18 +478,34 @@ uint64_t BoltAddressTranslation::translate(uint64_t
FuncAddress,
return Offset;
const MapTy = Iter->second;
+ if (IsBranchSrc) {
+// Try exact lookup first
+auto KeyVal = Map.find(Offset);
+if (KeyVal != Map.end() && KeyVal->second &
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llvmbot wrote:
@llvm/pr-subscribers-bolt
Author: Amir Ayupov (aaupov)
Changes
Map branches that are not present in BAT to the containing basic block.
The normal behavior is to map it to the preceding translation entry,
which may or may not be a basic block, and this causes profile
https://github.com/aaupov created
https://github.com/llvm/llvm-project/pull/90811
Map branches that are not present in BAT to the containing basic block.
The normal behavior is to map it to the preceding translation entry,
which may or may not be a basic block, and this causes profile staleness
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