Do not generate LLVM IR for available_externally function bodies at
-O0, since we won't be using the definitions for anything anyway. For
lib/System/Path.o when built in Debug+Asserts mode, this leads to a 4%
improvement in compile time (and suppresses 440 function bodies).
<rdar://problem/7987644>
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108156 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/available-externally-suppress.c b/test/CodeGen/available-externally-suppress.c
new file mode 100644
index 0000000..c3b7a21
--- /dev/null
+++ b/test/CodeGen/available-externally-suppress.c
@@ -0,0 +1,12 @@
+// RUN: %clang_cc1 -emit-llvm -o - -O0 -triple x86_64-apple-darwin10 %s | FileCheck %s
+
+// Ensure that we don't emit available_externally functions at -O0.
+int x;
+
+inline void f0(int y) { x = y; }
+
+// CHECK: define void @test()
+// CHECK: declare void @f0(i32)
+void test() {
+ f0(17);
+}
diff --git a/test/CodeGen/inline.c b/test/CodeGen/inline.c
index a17b069..a6b4b3e 100644
--- a/test/CodeGen/inline.c
+++ b/test/CodeGen/inline.c
@@ -1,5 +1,5 @@
// RUN: echo "GNU89 tests:"
-// RUN: %clang %s -emit-llvm -S -o %t -std=gnu89
+// RUN: %clang %s -O1 -emit-llvm -S -o %t -std=gnu89
// RUN: grep "define available_externally i32 @ei()" %t
// RUN: grep "define i32 @foo()" %t
// RUN: grep "define i32 @bar()" %t
@@ -14,7 +14,7 @@
// RUN: grep "define available_externally i32 @test5" %t
// RUN: echo "\nC99 tests:"
-// RUN: %clang %s -emit-llvm -S -o %t -std=c99
+// RUN: %clang %s -O1 -emit-llvm -S -o %t -std=c99
// RUN: grep "define i32 @ei()" %t
// RUN: grep "define available_externally i32 @foo()" %t
// RUN: grep "define i32 @bar()" %t
@@ -29,7 +29,7 @@
// RUN: grep "define available_externally i32 @test5" %t
// RUN: echo "\nC++ tests:"
-// RUN: %clang %s -emit-llvm -S -o %t -std=c++98
+// RUN: %clang %s -O1 -emit-llvm -S -o %t -std=c++98
// RUN: grep "define linkonce_odr i32 @_Z2eiv()" %t
// RUN: grep "define linkonce_odr i32 @_Z3foov()" %t
// RUN: grep "define i32 @_Z3barv()" %t
diff --git a/test/CodeGen/inline2.c b/test/CodeGen/inline2.c
index 737b58f..fca4fff 100644
--- a/test/CodeGen/inline2.c
+++ b/test/CodeGen/inline2.c
@@ -1,5 +1,5 @@
-// RUN: %clang_cc1 -std=gnu89 -triple i386-apple-darwin9 -emit-llvm %s -o - | FileCheck -check-prefix GNU89 %s
-// RUN: %clang_cc1 -std=c99 -triple i386-apple-darwin9 -emit-llvm %s -o - | FileCheck -check-prefix C99 %s
+// RUN: %clang_cc1 -O1 -std=gnu89 -triple i386-apple-darwin9 -emit-llvm %s -o - | FileCheck -check-prefix GNU89 %s
+// RUN: %clang_cc1 -O1 -std=c99 -triple i386-apple-darwin9 -emit-llvm %s -o - | FileCheck -check-prefix C99 %s
// CHECK-GNU89: define i32 @f0()
// CHECK-C99: define i32 @f0()