commit 53591233c2265e154cb52e06937b81d6b5ca7bbe
author Eli Friedman <efriedma@codeaurora.org> Fri Aug 24 19:31:52 2018 +0000
committer Eli Friedman <efriedma@codeaurora.org> Fri Aug 24 19:31:52 2018 +0000
tree f693d1daad3f79696b519107972327a4f94fffc7
parent bddd7d8b7be1b1df213f9c51176d6122e45e1083

[LTO] Fix -save-temps with LTO and unnamed globals.

If all LLVM passes are disabled, we can't emit a summary because there
could be unnamed globals in the IR.

Differential Revision: https://reviews.llvm.org/D51198

llvm-svn: 340640

clang/lib/CodeGen/BackendUtil.cpp

diff --git a/clang/lib/CodeGen/BackendUtil.cpp b/clang/lib/CodeGen/BackendUtil.cpp
index 6da284e..3fd01a7 100644
--- a/clang/lib/CodeGen/BackendUtil.cpp
+++ b/clang/lib/CodeGen/BackendUtil.cpp
@@ -783,7 +783,7 @@
     break;
 
   case Backend_EmitBC:
-    if (CodeGenOpts.PrepareForThinLTO) {
+    if (CodeGenOpts.PrepareForThinLTO && !CodeGenOpts.DisableLLVMPasses) {
       if (!CodeGenOpts.ThinLinkBitcodeFile.empty()) {
         ThinLinkOS = openOutputFile(CodeGenOpts.ThinLinkBitcodeFile);
         if (!ThinLinkOS)
@@ -796,6 +796,7 @@
       // targets
       bool EmitLTOSummary =
           (CodeGenOpts.PrepareForLTO &&
+           !CodeGenOpts.DisableLLVMPasses &&
            llvm::Triple(TheModule->getTargetTriple()).getVendor() !=
                llvm::Triple::Apple);
       if (EmitLTOSummary && !TheModule->getModuleFlag("ThinLTO"))
@@ -1014,7 +1015,7 @@
     break;
 
   case Backend_EmitBC:
-    if (CodeGenOpts.PrepareForThinLTO) {
+    if (CodeGenOpts.PrepareForThinLTO && !CodeGenOpts.DisableLLVMPasses) {
       if (!CodeGenOpts.ThinLinkBitcodeFile.empty()) {
         ThinLinkOS = openOutputFile(CodeGenOpts.ThinLinkBitcodeFile);
         if (!ThinLinkOS)
@@ -1027,6 +1028,7 @@
       // targets
       bool EmitLTOSummary =
           (CodeGenOpts.PrepareForLTO &&
+           !CodeGenOpts.DisableLLVMPasses &&
            llvm::Triple(TheModule->getTargetTriple()).getVendor() !=
                llvm::Triple::Apple);
       if (EmitLTOSummary && !TheModule->getModuleFlag("ThinLTO"))