From: Chris Lattner <sabre@nondot.org>
Date: Fri, 2 May 2008 22:07:34 +0000 (+0000)
Subject: verify builtin optimization works like gcc.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=4d5b8ccd0717a08dd24d17709d2b9d15a4ecf003;p=oota-llvm.git

verify builtin optimization works like gcc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50594 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/test/CFrontend/libcalls.c b/test/CFrontend/libcalls.c
new file mode 100644
index 00000000000..c027ea4125e
--- /dev/null
+++ b/test/CFrontend/libcalls.c
@@ -0,0 +1,10 @@
+// llvm-gcc -O1+ should run simplify libcalls, O0 shouldn't
+// and -fno-builtins shouldn't.
+// RUN: %llvmgcc %s -S -emit-llvm -O0 -o - | grep {call.*exp2f}
+// RUN: %llvmgcc %s -S -emit-llvm -O1 -o - | grep {call.*ldexp}
+// RUN: %llvmgcc %s -S -emit-llvm -O3 -fno-builtin -o - | grep {call.*exp2f}
+
+float t4(unsigned char x) {
+  return exp2f(x);
+}
+