[PATCH] D115699: [llvm-profgen] Skip disassembling for PLT section
Lei Wang via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Mon Dec 13 22:47:13 PST 2021
wlei created this revision.
Herald added subscribers: hoy, wenlei.
wlei requested review of this revision.
Herald added a project: LLVM.
Herald added a subscriber: llvm-commits.
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D115699
Files:
llvm/test/tools/llvm-profgen/inline-noprobe2.test
llvm/tools/llvm-profgen/ProfiledBinary.cpp
Index: llvm/tools/llvm-profgen/ProfiledBinary.cpp
===================================================================
--- llvm/tools/llvm-profgen/ProfiledBinary.cpp
+++ llvm/tools/llvm-profgen/ProfiledBinary.cpp
@@ -545,14 +545,18 @@
// Register the text section.
TextSections.insert({SectionOffset, SectSize});
+ StringRef SectionName = unwrapOrError(Section.getName(), FileName);
+
if (ShowDisassemblyOnly) {
- StringRef SectionName = unwrapOrError(Section.getName(), FileName);
outs() << "\nDisassembly of section " << SectionName;
outs() << " [" << format("0x%" PRIx64, Section.getAddress()) << ", "
<< format("0x%" PRIx64, Section.getAddress() + SectSize)
<< "]:\n\n";
}
+ if (SectionName.contains(".plt"))
+ continue;
+
// Get the section data.
ArrayRef<uint8_t> Bytes =
arrayRefFromStringRef(unwrapOrError(Section.getContents(), FileName));
Index: llvm/test/tools/llvm-profgen/inline-noprobe2.test
===================================================================
--- llvm/test/tools/llvm-profgen/inline-noprobe2.test
+++ llvm/test/tools/llvm-profgen/inline-noprobe2.test
@@ -8,13 +8,8 @@
; RUN: llvm-profgen --format=extbinary --perfscript=%S/Inputs/inline-noprobe2.perfscript --binary=%S/Inputs/inline-noprobe2.perfbin --output=%t --populate-profile-symbol-list=1
; RUN: llvm-profdata show -show-prof-sym-list -sample %t | FileCheck %s --check-prefix=CHECK-SYM-LIST
-; CHECK-ARTIFICIAL-BRANCH: 3
-; CHECK-ARTIFICIAL-BRANCH: 400540-400540:1
-; CHECK-ARTIFICIAL-BRANCH: 400870-400870:2
-; CHECK-ARTIFICIAL-BRANCH: 400875-4008bf:1
-; CHECK-ARTIFICIAL-BRANCH: 2
-; CHECK-ARTIFICIAL-BRANCH: 400870->400540:2
-; CHECK-ARTIFICIAL-BRANCH: 4008bf->400870:2
+; CHECK-ARTIFICIAL-BRANCH: 0
+; CHECK-ARTIFICIAL-BRANCH: 0
; CHECK-SYM-LIST: Dump profile symbol list
; CHECK-SYM-LIST: main
@@ -78,16 +73,23 @@
;CHECK: 1: 5
;CHECK: 2: 5
;CHECK: 3: 5
-;CHECK: main:820:0
+quick_sort:903:25
+ 1: 24
+ 2: 12 partition_pivot_last:7 partition_pivot_first:5
+ 3: 11 quick_sort:12
+ 4: 12 quick_sort:12
+ 6: 24
+ 65507: 12
+main:486:0
;CHECK: 0: 0
;CHECK: 3: 0
;CHECK: 4.1: 0
;CHECK: 4.3: 0
-;CHECK: 5.1: 10
-;CHECK: 5.3: 10
-;CHECK: 6: 10
-;CHECK: 6.1: 12
-;CHECK: 6.3: 10
+;CHECK: 5.1: 6
+;CHECK: 5.3: 6
+;CHECK: 6: 6
+;CHECK: 6.1: 6
+;CHECK: 6.3: 6
;CHECK: 7: 0
;CHECK: 8: 0 quick_sort:1
;CHECK: 9: 0
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