From 22c5c1b2dfcb1da6a7ebfebea903401fc77d56e6 Mon Sep 17 00:00:00 2001
From: Andrew Lenharth <andrewl@lenharth.org>
Date: Sat, 16 Feb 2008 01:24:58 +0000
Subject: llvm.memory.barrier, and impl for x86 and alpha

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47204 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/CodeGen/Alpha/mb.ll    |  8 ++++++++
 test/CodeGen/Alpha/wmb.ll   |  8 ++++++++
 test/CodeGen/X86/lfence.ll  |  8 ++++++++
 test/CodeGen/X86/mfence.ll  | 20 ++++++++++++++++++++
 test/CodeGen/X86/nofence.ll | 27 +++++++++++++++++++++++++++
 test/CodeGen/X86/sfence.ll  |  8 ++++++++
 6 files changed, 79 insertions(+)
 create mode 100644 test/CodeGen/Alpha/mb.ll
 create mode 100644 test/CodeGen/Alpha/wmb.ll
 create mode 100644 test/CodeGen/X86/lfence.ll
 create mode 100644 test/CodeGen/X86/mfence.ll
 create mode 100644 test/CodeGen/X86/nofence.ll
 create mode 100644 test/CodeGen/X86/sfence.ll

(limited to 'test/CodeGen')

diff --git a/test/CodeGen/Alpha/mb.ll b/test/CodeGen/Alpha/mb.ll
new file mode 100644
index 0000000..50c245f
--- /dev/null
+++ b/test/CodeGen/Alpha/mb.ll
@@ -0,0 +1,8 @@
+; RUN: llvm-as < %s | llc -march=alpha | grep mb
+
+declare void @llvm.memory.barrier( i1 , i1 , i1 , i1 , i1)
+
+define void @test() {
+	call void @llvm.memory.barrier( i1 true, i1 true, i1 true, i1 true , i1 true)
+	ret void
+}
diff --git a/test/CodeGen/Alpha/wmb.ll b/test/CodeGen/Alpha/wmb.ll
new file mode 100644
index 0000000..f745cd5
--- /dev/null
+++ b/test/CodeGen/Alpha/wmb.ll
@@ -0,0 +1,8 @@
+; RUN: llvm-as < %s | llc -march=alpha | grep wmb
+
+declare void @llvm.memory.barrier( i1 , i1 , i1 , i1 , i1)
+
+define void @test() {
+	call void @llvm.memory.barrier( i1 false, i1 false, i1 false, i1 true , i1 true)
+	ret void
+}
diff --git a/test/CodeGen/X86/lfence.ll b/test/CodeGen/X86/lfence.ll
new file mode 100644
index 0000000..0721d73
--- /dev/null
+++ b/test/CodeGen/X86/lfence.ll
@@ -0,0 +1,8 @@
+; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse2 | grep lfence
+
+declare void @llvm.memory.barrier( i1 , i1 , i1 , i1 , i1)
+
+define void @test() {
+	call void @llvm.memory.barrier( i1 true, i1 false, i1 false, i1 false, i1 true)
+	ret void
+}
diff --git a/test/CodeGen/X86/mfence.ll b/test/CodeGen/X86/mfence.ll
new file mode 100644
index 0000000..6abdbce
--- /dev/null
+++ b/test/CodeGen/X86/mfence.ll
@@ -0,0 +1,20 @@
+; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse2 | not grep sfence
+; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse2 | not grep lfence
+; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse2 | grep mfence
+
+
+declare void @llvm.memory.barrier( i1 , i1 , i1 , i1 , i1)
+
+define void @test() {
+	call void @llvm.memory.barrier( i1 true, i1 true,  i1 false, i1 false, i1 true)
+	call void @llvm.memory.barrier( i1 true, i1 false, i1 true,  i1 false, i1 true)
+	call void @llvm.memory.barrier( i1 true, i1 false, i1 false, i1 true,  i1 true)
+
+	call void @llvm.memory.barrier( i1 true, i1 true,  i1 true,  i1 false, i1 true)
+	call void @llvm.memory.barrier( i1 true, i1 true,  i1 false, i1 true,  i1 true)
+	call void @llvm.memory.barrier( i1 true, i1 false, i1 true,  i1 true,  i1 true)
+
+	call void @llvm.memory.barrier( i1 true, i1 true, i1 true, i1 true , i1 true)
+	call void @llvm.memory.barrier( i1 false, i1 false, i1 false, i1 false , i1 true)
+	ret void
+}
diff --git a/test/CodeGen/X86/nofence.ll b/test/CodeGen/X86/nofence.ll
new file mode 100644
index 0000000..132ac94
--- /dev/null
+++ b/test/CodeGen/X86/nofence.ll
@@ -0,0 +1,27 @@
+; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse2 | not grep fence
+
+declare void @llvm.memory.barrier( i1 , i1 , i1 , i1 , i1)
+
+define void @test() {
+	call void @llvm.memory.barrier( i1 true,  i1 false, i1 false, i1 false, i1 false)
+	call void @llvm.memory.barrier( i1 false, i1 true,  i1 false, i1 false, i1 false)
+	call void @llvm.memory.barrier( i1 false, i1 false, i1 true,  i1 false, i1 false)
+	call void @llvm.memory.barrier( i1 false, i1 false, i1 false, i1 true,  i1 false)
+
+	call void @llvm.memory.barrier( i1 true,  i1 true,  i1 false, i1 false, i1 false)
+	call void @llvm.memory.barrier( i1 true,  i1 false, i1 true,  i1 false, i1 false)
+	call void @llvm.memory.barrier( i1 true,  i1 false, i1 false, i1 true,  i1 false)
+	call void @llvm.memory.barrier( i1 false, i1 true,  i1 true,  i1 false, i1 false)
+	call void @llvm.memory.barrier( i1 false, i1 true,  i1 false, i1 true,  i1 false)
+	call void @llvm.memory.barrier( i1 false, i1 false, i1 true,  i1 true,  i1 false)
+
+	call void @llvm.memory.barrier( i1 true,  i1 true,  i1 true,  i1 false,  i1 false)
+	call void @llvm.memory.barrier( i1 true,  i1 true,  i1 false,  i1 true,  i1 false)
+	call void @llvm.memory.barrier( i1 true,  i1 false,  i1 true,  i1 true,  i1 false)
+	call void @llvm.memory.barrier( i1 false,  i1 true,  i1 true,  i1 true,  i1 false)
+
+
+	call void @llvm.memory.barrier( i1 true, i1 true, i1 true, i1 true , i1 false)
+	call void @llvm.memory.barrier( i1 false, i1 false, i1 false, i1 false , i1 false)
+	ret void
+}
diff --git a/test/CodeGen/X86/sfence.ll b/test/CodeGen/X86/sfence.ll
new file mode 100644
index 0000000..fc75ccb
--- /dev/null
+++ b/test/CodeGen/X86/sfence.ll
@@ -0,0 +1,8 @@
+; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse2 | grep sfence
+
+declare void @llvm.memory.barrier( i1 , i1 , i1 , i1 , i1)
+
+define void @test() {
+	call void @llvm.memory.barrier( i1 false, i1 false, i1 false, i1 true, i1 true)
+	ret void
+}
-- 
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