From 3de5ef96c93943af6154eeeccad2d7774343e97f Mon Sep 17 00:00:00 2001
From: Sean Silva <chisophugis@gmail.com>
Date: Fri, 1 Apr 2016 03:54:03 +0000
Subject: [PATCH] Improve CHECK-NOT robustness of dllexport tests

This changes some dllexport tests, to verify that some symbols that
should not be exported are not, in a way that improves the robustness
of CHECK-SAME interaction with CHECK-NOT.

We plan to enable dllimport/dllexport support for the PS4, and these
changes are for points we noticed in our internal testing.

Patch by Warren Ristow!

llvm-svn: 265106
---
 llvm/test/CodeGen/X86/dllexport-x86_64.ll |  9 ++++++++-
 llvm/test/CodeGen/X86/dllexport.ll        | 16 ++++++++++++----
 2 files changed, 20 insertions(+), 5 deletions(-)

diff --git a/llvm/test/CodeGen/X86/dllexport-x86_64.ll b/llvm/test/CodeGen/X86/dllexport-x86_64.ll
index 58e25f923971..98303d38ab21 100644
--- a/llvm/test/CodeGen/X86/dllexport-x86_64.ll
+++ b/llvm/test/CodeGen/X86/dllexport-x86_64.ll
@@ -1,5 +1,7 @@
-; RUN: llc -mtriple x86_64-pc-win32 < %s | FileCheck -check-prefix=CHECK -check-prefix=WIN32 %s
+; RUN: llc -mtriple x86_64-pc-win32   < %s | FileCheck -check-prefix=CHECK -check-prefix=WIN32 %s
 ; RUN: llc -mtriple x86_64-pc-mingw32 < %s | FileCheck -check-prefix=CHECK -check-prefix=MINGW %s
+; RUN: llc -mtriple x86_64-pc-win32   < %s | FileCheck -check-prefix=NOTEXPORTED %s
+; RUN: llc -mtriple x86_64-pc-mingw32 < %s | FileCheck -check-prefix=NOTEXPORTED %s
 
 ; CHECK: .text
 
@@ -70,6 +72,11 @@ define weak_odr dllexport void @weak1() {
 @blob = global [6 x i8] c"\B8*\00\00\00\C3", section ".text", align 16
 @blob_alias = dllexport alias i32 (), bitcast ([6 x i8]* @blob to i32 ()*)
 
+; Verify item that should not be exported does not appear in the export table.
+; We use a separate check prefix to avoid confusion between -NOT and -SAME.
+; NOTEXPORTED: .section .drectve
+; NOTEXPORTED-NOT: notExported
+
 ; CHECK: .section .drectve
 ; WIN32: /EXPORT:f1
 ; WIN32-SAME: /EXPORT:f2
diff --git a/llvm/test/CodeGen/X86/dllexport.ll b/llvm/test/CodeGen/X86/dllexport.ll
index 81d686deec22..d833f3c22ffc 100644
--- a/llvm/test/CodeGen/X86/dllexport.ll
+++ b/llvm/test/CodeGen/X86/dllexport.ll
@@ -4,6 +4,12 @@
 ; RUN:    | FileCheck -check-prefix CHECK -check-prefix CHECK-GCC %s
 ; RUN: llc -mtriple i686-pc-cygwin %s -o - \
 ; RUN:    | FileCheck -check-prefix CHECK -check-prefix CHECK-GCC %s
+; RUN: llc -mtriple i386-pc-win32 < %s \
+; RUN:    | FileCheck -check-prefix NOTEXPORTED %s
+; RUN: llc -mtriple i386-pc-mingw32 < %s \
+; RUN:    | FileCheck -check-prefix NOTEXPORTED %s
+; RUN: llc -mtriple i686-pc-cygwin %s -o - \
+; RUN:    | FileCheck -check-prefix NOTEXPORTED %s
 
 ; CHECK: .text
 
@@ -88,8 +94,13 @@ define weak_odr dllexport void @weak1() {
 ; CHECK: _weak_alias = _f1
 @weak_alias = weak_odr dllexport alias void(), void()* @f1
 
+; Verify items that should not be exported do not appear in the export table.
+; We use a separate check prefix to avoid confusion between -NOT and -SAME.
+; NOTEXPORTED: .section .drectve
+; NOTEXPORTED-NOT: notExported
+; NOTEXPORTED-NOT: notDefined
+
 ; CHECK: .section .drectve
-; CHECK-CL-NOT: notExported
 ; CHECK-CL: /EXPORT:_f1
 ; CHECK-CL-SAME: /EXPORT:_f2
 ; CHECK-CL-SAME: /EXPORT:_stdfun@0
@@ -107,8 +118,6 @@ define weak_odr dllexport void @weak1() {
 ; CHECK-CL-SAME: /EXPORT:_alias2
 ; CHECK-CL-SAME: /EXPORT:_alias3
 ; CHECK-CL-SAME: /EXPORT:_weak_alias"
-; CHECK-CL-NOT: notExported
-; CHECK-GCC-NOT: notExported
 ; CHECK-GCC: -export:f1
 ; CHECK-GCC-SAME: -export:f2
 ; CHECK-GCC-SAME: -export:stdfun@0
@@ -126,4 +135,3 @@ define weak_odr dllexport void @weak1() {
 ; CHECK-GCC-SAME: -export:alias2
 ; CHECK-GCC-SAME: -export:alias3
 ; CHECK-GCC-SAME: -export:weak_alias"
-; CHECK-GCC-NOT: notExported