From d83ae7d698248958e157aeeaca9fb114bf1e2b60 Mon Sep 17 00:00:00 2001
From: Eli Friedman <eli.friedman@gmail.com>
Date: Sun, 30 Nov 2008 08:32:11 +0000
Subject: Optimize memmove and memset into the LLVM builtins.  Note that these
 only show up in code from front-ends besides llvm-gcc, like clang.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60287 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/Transforms/SimplifyLibCalls/memmove.ll | 12 ++++++++++++
 test/Transforms/SimplifyLibCalls/memset.ll  | 12 ++++++++++++
 2 files changed, 24 insertions(+)
 create mode 100644 test/Transforms/SimplifyLibCalls/memmove.ll
 create mode 100644 test/Transforms/SimplifyLibCalls/memset.ll

(limited to 'test/Transforms')

diff --git a/test/Transforms/SimplifyLibCalls/memmove.ll b/test/Transforms/SimplifyLibCalls/memmove.ll
new file mode 100644
index 0000000..d960960
--- /dev/null
+++ b/test/Transforms/SimplifyLibCalls/memmove.ll
@@ -0,0 +1,12 @@
+; RUN: llvm-as < %s | opt -simplify-libcalls | llvm-dis | grep {llvm.memmove}
+target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32"
+target triple = "i686-pc-linux-gnu"
+
+define i8* @test(i8* %a, i8* %b, i32 %x) {
+entry:
+	%call = call i8* @memmove(i8* %a, i8* %b, i32 %x )
+	ret i8* %call
+}
+
+declare i8* @memmove(i8*,i8*,i32)
+
diff --git a/test/Transforms/SimplifyLibCalls/memset.ll b/test/Transforms/SimplifyLibCalls/memset.ll
new file mode 100644
index 0000000..0c10915
--- /dev/null
+++ b/test/Transforms/SimplifyLibCalls/memset.ll
@@ -0,0 +1,12 @@
+; RUN: llvm-as < %s | opt -simplify-libcalls | llvm-dis | grep {llvm.memset}
+target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32"
+target triple = "i686-pc-linux-gnu"
+
+define i8* @test(i8* %a, i32 %b, i32 %x) {
+entry:
+	%call = call i8* @memset(i8* %a, i32 %b, i32 %x )
+	ret i8* %call
+}
+
+declare i8* @memset(i8*,i32,i32)
+
-- 
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