From: Chandler Carruth <chandlerc@gmail.com>
Date: Tue, 25 Jul 2017 10:46:07 +0000 (+0000)
Subject: [PM] Setup TargetLibraryInfo correctly for the new pass manager.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=ac84e19437d75e0875bd5d1b9d13d24690796c37;p=clang

[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.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@308967 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/BackendUtil.cpp b/lib/CodeGen/BackendUtil.cpp
index 513896d986..b56d399d7e 100644
--- a/lib/CodeGen/BackendUtil.cpp
+++ b/lib/CodeGen/BackendUtil.cpp
@@ -871,6 +871,14 @@ void EmitAssemblyHelper::EmitAssemblyWithNewPassManager(
   // 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);
diff --git a/test/CodeGen/nobuiltin.c b/test/CodeGen/nobuiltin.c
index f80c3c332a..543918f674 100644
--- a/test/CodeGen/nobuiltin.c
+++ b/test/CodeGen/nobuiltin.c
@@ -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()