From fc74ff5a0792641885551a63d9ddf8cbfdf76e3c Mon Sep 17 00:00:00 2001
From: dim <dim@FreeBSD.org>
Date: Wed, 6 Jan 2016 20:02:26 +0000
Subject: Vendor import of clang trunk r256945:
https://llvm.org/svn/llvm-project/cfe/trunk@256945
---
test/CodeGen/nobuiltin.c | 9 +++++++++
1 file changed, 9 insertions(+)
(limited to 'test/CodeGen/nobuiltin.c')
diff --git a/test/CodeGen/nobuiltin.c b/test/CodeGen/nobuiltin.c
index 0a8e8bb..7cc8164 100644
--- a/test/CodeGen/nobuiltin.c
+++ b/test/CodeGen/nobuiltin.c
@@ -1,4 +1,5 @@
// RUN: %clang_cc1 -fno-builtin -O1 -S -o - %s | FileCheck %s
+// RUN: %clang_cc1 -fno-builtin-memset -O1 -S -o - %s | FileCheck -check-prefix=MEMSET %s
void PR13497() {
char content[2];
@@ -6,3 +7,11 @@ void PR13497() {
// CHECK: __strcpy_chk
__builtin___strcpy_chk(content, "", 1);
}
+
+void PR4941(char *s) {
+ // Make sure we don't optimize this loop to a memset().
+ // MEMSET-LABEL: PR4941:
+ // MEMSET-NOT: memset
+ for (unsigned i = 0; i < 8192; ++i)
+ s[i] = 0;
+}
--
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