ARM: Add mappings for ACLE prefetch intrinsics

Implement __pld, __pldx, __pli and __plix builtin intrinsics as specified in
ARM ACLE 2.0.

llvm-svn: 215599

2 files changed, 36 insertions, 0 deletions

diff --git a/clang/test/CodeGen/arm_acle.c b/clang/test/CodeGen/arm_acle.c
index 8550c58b367..8a23df836e4 100644
--- a/clang/test/CodeGen/arm_acle.c
+++ b/clang/test/CodeGen/arm_acle.c
@@ -62,6 +62,35 @@ void test_sevl(void) {
   __sevl();
 }
 
+/* 8.6 Memory prefetch intrinsics */
+/* 8.6.1 Data prefetch */
+// ARM-LABEL: test_pld
+// ARM: call void @llvm.prefetch(i8* null, i32 0, i32 3, i32 1)
+void test_pld() {
+  __pld(0);
+}
+
+// ARM-LABEL: test_pldx
+// AArch32: call void @llvm.prefetch(i8* null, i32 1, i32 3, i32 1)
+// AArch64: call void @llvm.prefetch(i8* null, i32 1, i32 1, i32 1)
+void test_pldx() {
+  __pldx(1, 2, 0, 0);
+}
+
+/* 8.6.2 Instruction prefetch */
+// ARM-LABEL: test_pli
+// ARM: call void @llvm.prefetch(i8* null, i32 0, i32 3, i32 0)
+void test_pli() {
+  __pli(0);
+}
+
+// ARM-LABEL: test_plix
+// AArch32: call void @llvm.prefetch(i8* null, i32 0, i32 3, i32 0)
+// AArch64: call void @llvm.prefetch(i8* null, i32 0, i32 1, i32 0)
+void test_plix() {
+  __plix(2, 0, 0);
+}
+
 /* 8.7 NOP */
 // ARM-LABEL: test_nop
 // AArch32: call void @llvm.arm.hint(i32 0)
diff --git a/clang/test/Sema/arm_acle.c b/clang/test/Sema/arm_acle.c
index 866626fc38c..2d1d68a8869 100644
--- a/clang/test/Sema/arm_acle.c
+++ b/clang/test/Sema/arm_acle.c
@@ -30,3 +30,10 @@ int32_t test_ssat_const_diag(int32_t t, const int32_t v) {
 int32_t test_usat_const_diag(int32_t t, const int32_t v) {
   return __usat(t, v);  // expected-error-re {{argument to {{.*}} must be a constant integer}}
 }
+
+/*
+ * Prefetch intrinsics
+ */
+void test_pldx_const_diag(int32_t i) {
+  __pldx(i, 0, 0, 0);  // expected-error-re {{argument to {{.*}} must be a constant integer}}
+}