fix line number

Author: mingmingl-llvm

compiler-rt/test/profile/Linux/instrprof-vtable-value-prof.cpp

@@ -1,4 +1,4 @@
-// REQUIRES: lld-available
+// REQUIRES: lld, lld-available
 
 // Building the instrumented binary will fail because lld doesn't support
 // big-endian ELF for PPC (aka ABI 1).
@@ -142,12 +142,12 @@
 // RUN:    | FileCheck %s --check-prefixes=REMARK,IR --implicit-check-not="!VP"
 
 // For the indirect call site `ptr->func`
-// REMARK: instrprof-vtable-value-prof.cpp:214:19: Promote indirect call to _ZN12_GLOBAL__N_18Derived24funcEii with count 150 out of 200, sink 1 instruction(s) and compare 1 vtable(s): {_ZTVN12_GLOBAL__N_18Derived2E}
-// REMARK: instrprof-vtable-value-prof.cpp:214:19: Promote indirect call to _ZN8Derived14funcEii with count 50 out of 50, sink 1 instruction(s) and compare 1 vtable(s): {_ZTV8Derived1}
+// REMARK: instrprof-vtable-value-prof.cpp:221:19: Promote indirect call to _ZN12_GLOBAL__N_18Derived24funcEii with count 150 out of 200, sink 1 instruction(s) and compare 1 vtable(s): {_ZTVN12_GLOBAL__N_18Derived2E}
+// REMARK: instrprof-vtable-value-prof.cpp:221:19: Promote indirect call to _ZN8Derived14funcEii with count 50 out of 50, sink 1 instruction(s) and compare 1 vtable(s): {_ZTV8Derived1}
 //
 // For the indirect call site `delete ptr`
-// REMARK: instrprof-vtable-value-prof.cpp:216:5: Promote indirect call to _ZN12_GLOBAL__N_18Derived2D0Ev with count 750 out of 1000, sink 2 instruction(s) and compare 1 vtable(s): {_ZTVN12_GLOBAL__N_18Derived2E}
-// REMARK: instrprof-vtable-value-prof.cpp:216:5: Promote indirect call to _ZN8Derived1D0Ev with count 250 out of 250, sink 2 instruction(s) and compare 1 vtable(s): {_ZTV8Derived1}
+// REMARK: instrprof-vtable-value-prof.cpp:223:5: Promote indirect call to _ZN12_GLOBAL__N_18Derived2D0Ev with count 750 out of 1000, sink 2 instruction(s) and compare 1 vtable(s): {_ZTVN12_GLOBAL__N_18Derived2E}
+// REMARK: instrprof-vtable-value-prof.cpp:223:5: Promote indirect call to _ZN8Derived1D0Ev with count 250 out of 250, sink 2 instruction(s) and compare 1 vtable(s): {_ZTV8Derived1}
 
 // The IR matchers for indirect callsite `ptr->func`.
 // IR-LABEL: @main

llvm/lib/Transforms/Instrumentation/PGOInstrumentation.cpp

@@ -1760,11 +1760,11 @@ void PGOUseFunc::annotateValueSites(uint32_t Kind) {
   unsigned NumValueSites = ProfileRecord.getNumValueSites(Kind);
   // FuncPGOInstrumentation ctor finds value sites for each kind. It runs on the
   // common path of pgo-instr-gen and pgo-instr-use, and vtable kind path
-  // is gated by `-enable-vtable-value-profiling`. Give pgo-instr-use pass a
-  // second chance to find out vtable value sites when vtable profiles are
-  // present and `-enable-vtable-profile-use` is not explicitly off.
+  // is gated by `-enable-vtable-value-profiling`. If vtable profiles are
+  // present, not explicitly discarded and vtable sites remain empty, try to
+  // find the sites again.
   if (NumValueSites > 0 && Kind == IPVK_VTableTarget &&
-      NumValueSites != FuncInfo.ValueSites[IPVK_VTableTarget].size() &&
+      FuncInfo.ValueSites[Kind].empty() &&
       !(EnableVTableProfileUse.getNumOccurrences() &&
         EnableVTableProfileUse == false))
     FuncInfo.ValueSites[IPVK_VTableTarget] = VPC.get(IPVK_VTableTarget);