From c2b7f5fa511420b99dd8238ab4ba769a6a6015a5 Mon Sep 17 00:00:00 2001
From: Justin Holewinski <jholewinski@nvidia.com>
Date: Tue, 21 May 2013 14:37:16 +0000
Subject: Drop @llvm.annotation and @llvm.ptr.annotation intrinsics during
 codegen.

The intrinsic calls are dropped, but the annotated value is propagated.

Fixes PR 15253

Original patch by Zeng Bin!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182387 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/CodeGen/Generic/annotate.ll     | 15 +++++++++++++++
 test/CodeGen/Generic/ptr-annotate.ll | 18 ++++++++++++++++++
 2 files changed, 33 insertions(+)
 create mode 100644 test/CodeGen/Generic/annotate.ll
 create mode 100644 test/CodeGen/Generic/ptr-annotate.ll

(limited to 'test/CodeGen')

diff --git a/test/CodeGen/Generic/annotate.ll b/test/CodeGen/Generic/annotate.ll
new file mode 100644
index 0000000..c617eb0
--- /dev/null
+++ b/test/CodeGen/Generic/annotate.ll
@@ -0,0 +1,15 @@
+; RUN: llc < %s
+
+; PR15253
+
+@.str = private unnamed_addr constant [4 x i8] c"sth\00", section "llvm.metadata"
+@.str1 = private unnamed_addr constant [4 x i8] c"t.c\00", section "llvm.metadata"
+
+
+define i32 @foo(i32 %a) {
+entry:
+  %0 = call i32 @llvm.annotation.i32(i32 %a, i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), i8* getelementptr inbounds ([4 x i8]* @.str1, i32 0, i32 0), i32 2)
+  ret i32 %0
+}
+
+declare i32 @llvm.annotation.i32(i32, i8*, i8*, i32) #1
diff --git a/test/CodeGen/Generic/ptr-annotate.ll b/test/CodeGen/Generic/ptr-annotate.ll
new file mode 100644
index 0000000..ac5bd55
--- /dev/null
+++ b/test/CodeGen/Generic/ptr-annotate.ll
@@ -0,0 +1,18 @@
+; RUN: llc < %s
+
+; PR15253
+
+%struct.mystruct = type { i32 }
+
+@.str = private unnamed_addr constant [4 x i8] c"sth\00", section "llvm.metadata"
+@.str1 = private unnamed_addr constant [4 x i8] c"t.c\00", section "llvm.metadata"
+
+define void @foo() {
+entry:
+  %m = alloca i8, align 4
+  %0 = call i8* @llvm.ptr.annotation.p0i8(i8* %m, i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), i8* getelementptr inbounds ([4 x i8]* @.str1, i32 0, i32 0), i32 2)
+  store i8 1, i8* %0, align 4
+  ret void
+}
+
+declare i8* @llvm.ptr.annotation.p0i8(i8*, i8*, i8*, i32) #1
-- 
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