[X86][LWP] Add clang support for LWP instructions.

This patch adds support for the the LightWeight Profiling (LWP) instructions which are available on all AMD Bulldozer class CPUs (bdver1 to bdver4).

Differential Revision: https://reviews.llvm.org/D32770

llvm-svn: 302418

1 files changed, 39 insertions, 0 deletions

diff --git a/clang/test/CodeGen/lwp-builtins.c b/clang/test/CodeGen/lwp-builtins.c
new file mode 100644
index 00000000000..c689c3974d4
--- /dev/null
+++ b/clang/test/CodeGen/lwp-builtins.c
@@ -0,0 +1,39 @@
+// RUN: %clang_cc1 -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +lwp -emit-llvm -o - -Wall -Werror | FileCheck %s
+
+#include <x86intrin.h>
+
+void test_llwpcb(void *ptr) {
+  // CHECK-LABEL: @test_llwpcb
+  // CHECK: call void @llvm.x86.llwpcb(i8* %{{.*}})
+  __llwpcb(ptr);
+}
+
+void* test_slwpcb() {
+  // CHECK-LABEL: @test_slwpcb
+  // CHECK: call i8* @llvm.x86.slwpcb()
+  return __slwpcb();
+}
+
+unsigned char test_lwpins32(unsigned val2, unsigned val1) {
+  // CHECK-LABEL: @test_lwpins32
+  // CHECK: call i8 @llvm.x86.lwpins32(i32
+  return __lwpins32(val2, val1, 0x01234);
+}
+
+unsigned char test_lwpins64(unsigned long long val2, unsigned val1) {
+  // CHECK-LABEL: @test_lwpins64
+  // CHECK: call i8 @llvm.x86.lwpins64(i64
+  return __lwpins64(val2, val1, 0x56789);
+}
+
+void test_lwpval32(unsigned val2, unsigned val1) {
+  // CHECK-LABEL: @test_lwpval32
+  // CHECK: call void @llvm.x86.lwpval32(i32
+  __lwpval32(val2, val1, 0x01234);
+}
+
+void test_lwpval64(unsigned long long val2, unsigned val1) {
+  // CHECK-LABEL: @test_lwpval64
+  // CHECK: call void @llvm.x86.lwpval64(i64
+  __lwpval64(val2, val1, 0xABCDEF);
+}