From 44c8cd97a508a7a12df769a1ffea29b1adb83fcc Mon Sep 17 00:00:00 2001
From: Duncan Sands <baldrick@free.fr>
Date: Wed, 31 Dec 2008 16:14:43 +0000
Subject: Rename AddReadAttrs to FunctionAttrs, and teach it how to work out
 (in a very simplistic way) which function arguments (pointer arguments only)
 are only dereferenced and so do not escape.  Mark such arguments 'nocapture'.

llvm-svn: 61525
---
 llvm/test/Transforms/FunctionAttrs/2008-09-13-VolatileRead.ll | 9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100644 llvm/test/Transforms/FunctionAttrs/2008-09-13-VolatileRead.ll

(limited to 'llvm/test/Transforms/FunctionAttrs/2008-09-13-VolatileRead.ll')

diff --git a/llvm/test/Transforms/FunctionAttrs/2008-09-13-VolatileRead.ll b/llvm/test/Transforms/FunctionAttrs/2008-09-13-VolatileRead.ll
new file mode 100644
index 00000000000..b6077fd8ee3
--- /dev/null
+++ b/llvm/test/Transforms/FunctionAttrs/2008-09-13-VolatileRead.ll
@@ -0,0 +1,9 @@
+; RUN: llvm-as < %s | opt -functionattrs | llvm-dis | not grep read
+; PR2792
+
+@g = global i32 0		; <i32*> [#uses=1]
+
+define i32 @f() {
+	%t = volatile load i32* @g		; <i32> [#uses=1]
+	ret i32 %t
+}
-- 
cgit v1.2.3