[lld] 1eaa9b4 - [ELF] initializeSections: move SHT_LLVM_CALL_GRAPH_PROFILE check into SHF_EXCLUDE && !relocatable. NFC

[Fangrui Song via llvm-commits]

Author: Fangrui Song
Date: 2021-12-12T20:05:21-08:00
New Revision: 1eaa9b4374f5559a2332b056ae66ddf78ad8bfff

URL: https://github.com/llvm/llvm-project/commit/1eaa9b4374f5559a2332b056ae66ddf78ad8bfff
DIFF: https://github.com/llvm/llvm-project/commit/1eaa9b4374f5559a2332b056ae66ddf78ad8bfff.diff

LOG: [ELF] initializeSections: move SHT_LLVM_CALL_GRAPH_PROFILE check into SHF_EXCLUDE && !relocatable. NFC

Avoid a comparison in the majority of cases.

Added: 
    

Modified: 
    lld/ELF/InputFiles.cpp

Removed: 
    


################################################################################
diff  --git a/lld/ELF/InputFiles.cpp b/lld/ELF/InputFiles.cpp
index 12ff5f167776..90a4eb018b4d 100644
--- a/lld/ELF/InputFiles.cpp
+++ b/lld/ELF/InputFiles.cpp
@@ -555,13 +555,12 @@ void ObjFile<ELFT>::initializeSections(bool ignoreComdats) {
       continue;
     const Elf_Shdr &sec = objSections[i];
 
-    if (sec.sh_type == ELF::SHT_LLVM_CALL_GRAPH_PROFILE)
-      cgProfileSectionIndex = i;
-
     // SHF_EXCLUDE'ed sections are discarded by the linker. However,
     // if -r is given, we'll let the final link discard such sections.
     // This is compatible with GNU.
     if ((sec.sh_flags & SHF_EXCLUDE) && !config->relocatable) {
+      if (sec.sh_type == SHT_LLVM_CALL_GRAPH_PROFILE)
+        cgProfileSectionIndex = i;
       if (sec.sh_type == SHT_LLVM_ADDRSIG) {
         // We ignore the address-significance table if we know that the object
         // file was created by objcopy or ld -r. This is because these tools