X86 SSE Intrinsics: update header for sqrt_ss, rsqrt_ss and rcp_ss.

There intrinsics pass through the upper FP values from the input.
rdar://12558838


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166743 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/sse-builtins.c b/test/CodeGen/sse-builtins.c
index 0e48560..400209f 100644
--- a/test/CodeGen/sse-builtins.c
+++ b/test/CodeGen/sse-builtins.c
@@ -1,8 +1,39 @@
 // RUN: %clang_cc1 -ffreestanding -triple i386-apple-darwin9 -target-cpu pentium4 -target-feature +sse4.1 -g -emit-llvm %s -o - | FileCheck %s
 
+#include <xmmintrin.h>
 #include <emmintrin.h>
 #include <smmintrin.h>
 
+__m128 test_rsqrt_ss(__m128 x) {
+  // CHECK: define {{.*}} @test_rsqrt_ss
+  // CHECK: call <4 x float> @llvm.x86.sse.rsqrt.ss
+  // CHECK: extractelement <4 x float> {{.*}}, i32 0
+  // CHECK: extractelement <4 x float> {{.*}}, i32 1
+  // CHECK: extractelement <4 x float> {{.*}}, i32 2
+  // CHECK: extractelement <4 x float> {{.*}}, i32 3
+  return _mm_rsqrt_ss(x);
+}
+
+__m128 test_rcp_ss(__m128 x) {
+  // CHECK: define {{.*}} @test_rcp_ss
+  // CHECK: call <4 x float> @llvm.x86.sse.rcp.ss
+  // CHECK: extractelement <4 x float> {{.*}}, i32 0
+  // CHECK: extractelement <4 x float> {{.*}}, i32 1
+  // CHECK: extractelement <4 x float> {{.*}}, i32 2
+  // CHECK: extractelement <4 x float> {{.*}}, i32 3
+  return _mm_rcp_ss(x);
+}
+
+__m128 test_sqrt_ss(__m128 x) {
+  // CHECK: define {{.*}} @test_sqrt_ss
+  // CHECK: call <4 x float> @llvm.x86.sse.sqrt.ss
+  // CHECK: extractelement <4 x float> {{.*}}, i32 0
+  // CHECK: extractelement <4 x float> {{.*}}, i32 1
+  // CHECK: extractelement <4 x float> {{.*}}, i32 2
+  // CHECK: extractelement <4 x float> {{.*}}, i32 3
+  return _mm_sqrt_ss(x);
+}
+
 __m128 test_loadl_pi(__m128 x, void* y) {
   // CHECK: define {{.*}} @test_loadl_pi
   // CHECK: load <2 x float>* {{.*}}, align 1{{$}}