[pkg-d-commits] [ldc] 73/74: Fix LTO for LLVM 5.0 (#2158)

[Matthias Klumpp]

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mak pushed a commit to annotated tag v1.3.0-beta2
in repository ldc.

commit 40de53d0956cf7eb7d5b719884c78dc4f4b375f6
Author: Nicholas Wilson <thewilsonator at users.noreply.github.com>
Date:   Tue Jun 6 14:34:35 2017 +0800

    Fix LTO for LLVM 5.0 (#2158)
    
    Remove micro-optimization that breaks LTO on LLVM 5.0.
---
 driver/toobj.cpp | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/driver/toobj.cpp b/driver/toobj.cpp
index 8b96573..55b1bbc 100644
--- a/driver/toobj.cpp
+++ b/driver/toobj.cpp
@@ -498,15 +498,11 @@ void writeModule(llvm::Module *m, const char *filename) {
       auto &moduleSummaryIndex = indexBuilder.getIndex();
 #else
       llvm::ProfileSummaryInfo PSI(*m);
-      // Set PSIptr to nullptr when there is no PGO information available, such
-      // that LLVM will not try to find PGO information for each function inside
-      // `buildModuleSummaryIndex`. (micro-optimization)
-      auto PSIptr = m->getProfileSummary() ? &PSI : nullptr;
 
       // When the function freq info callback is set to nullptr, LLVM will
       // calculate it automatically for us.
       auto moduleSummaryIndex = buildModuleSummaryIndex(
-          *m, /* function freq callback */ nullptr, PSIptr);
+          *m, /* function freq callback */ nullptr, &PSI);
 #endif
 
       llvm::WriteBitcodeToFile(m, bos, true, &moduleSummaryIndex,

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