r308967 - [PM] Setup TargetLibraryInfo correctly for the new pass manager.

[Chandler Carruth via cfe-commits]

Author: chandlerc
Date: Tue Jul 25 03:46:07 2017
New Revision: 308967

URL: http://llvm.org/viewvc/llvm-project?rev=308967&view=rev
Log:
[PM] Setup TargetLibraryInfo correctly for the new pass manager.

Without this, -fno-builtin and friends doesn't work. Added the obvious
RUN lines to the test for -fno-builtin and they pass now.

Modified:
    cfe/trunk/lib/CodeGen/BackendUtil.cpp
    cfe/trunk/test/CodeGen/nobuiltin.c

Modified: cfe/trunk/lib/CodeGen/BackendUtil.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/BackendUtil.cpp?rev=308967&r1=308966&r2=308967&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/BackendUtil.cpp (original)
+++ cfe/trunk/lib/CodeGen/BackendUtil.cpp Tue Jul 25 03:46:07 2017
@@ -871,6 +871,14 @@ void EmitAssemblyHelper::EmitAssemblyWit
   // Register the AA manager first so that our version is the one used.
   FAM.registerPass([&] { return PB.buildDefaultAAPipeline(); });
 
+  // Register the target library analysis directly and give it a customized
+  // preset TLI.
+  Triple TargetTriple(TheModule->getTargetTriple());
+  std::unique_ptr<TargetLibraryInfoImpl> TLII(
+      createTLII(TargetTriple, CodeGenOpts));
+  FAM.registerPass([&] { return TargetLibraryAnalysis(*TLII); });
+  MAM.registerPass([&] { return TargetLibraryAnalysis(*TLII); });
+
   // Register all the basic analyses with the managers.
   PB.registerModuleAnalyses(MAM);
   PB.registerCGSCCAnalyses(CGAM);

Modified: cfe/trunk/test/CodeGen/nobuiltin.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGen/nobuiltin.c?rev=308967&r1=308966&r2=308967&view=diff
==============================================================================
--- cfe/trunk/test/CodeGen/nobuiltin.c (original)
+++ cfe/trunk/test/CodeGen/nobuiltin.c Tue Jul 25 03:46:07 2017
@@ -4,6 +4,10 @@
 // RUN: %clang_cc1 -triple x86_64-linux-gnu -fno-builtin -O1 -S -o - %s | FileCheck -check-prefix=NOSTRCPY -check-prefix=NOMEMSET %s
 // RUN: %clang_cc1 -triple x86_64-linux-gnu -fno-builtin-memset -O1 -S -o - %s | FileCheck -check-prefix=STRCPY -check-prefix=NOMEMSET %s
 
+// RUN: %clang_cc1 -triple x86_64-linux-gnu -O1 -fexperimental-new-pass-manager -S -o - %s | FileCheck -check-prefix=STRCPY -check-prefix=MEMSET %s
+// RUN: %clang_cc1 -triple x86_64-linux-gnu -fno-builtin -O1 -fexperimental-new-pass-manager -S -o - %s | FileCheck -check-prefix=NOSTRCPY -check-prefix=NOMEMSET %s
+// RUN: %clang_cc1 -triple x86_64-linux-gnu -fno-builtin-memset -O1 -fexperimental-new-pass-manager -S -o - %s | FileCheck -check-prefix=STRCPY -check-prefix=NOMEMSET %s
+
 void PR13497() {
   char content[2];
   // make sure we don't optimize this call to strcpy()