[LoongArch] Add testcases for privileged intrinsic macros

[gonglingqin]

Summary

Add testcases calling macros to the implemented privileged intrinsics
as discussed in D139288. The intrinsics involved include ibar, dbar,
break, syscall, and CRC check intrinsics.

[SixWeining]

LGTM.

clang/test/CodeGen/LoongArch/intrinsic-la32.c

 // NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py
 // RUN: %clang_cc1 -triple loongarch32 -emit-llvm %s -o - \
 // RUN:     | FileCheck %s -check-prefix=LA32
 
 #include <larchintrin.h>
 
 // LA32-LABEL: @dbar(
 // LA32-NEXT:  entry:
 // LA32-NEXT:    call void @llvm.loongarch.dbar(i32 0)
+// LA32-NEXT:    call void @llvm.loongarch.dbar(i32 0)
 // LA32-NEXT:    ret void
 //
 void dbar() {
-  return __builtin_loongarch_dbar(0);
+  __dbar(0);
+  __builtin_loongarch_dbar(0);
 }
 
 // LA32-LABEL: @ibar(
 // LA32-NEXT:  entry:
 // LA32-NEXT:    call void @llvm.loongarch.ibar(i32 0)
+// LA32-NEXT:    call void @llvm.loongarch.ibar(i32 0)
 // LA32-NEXT:    ret void
 //
 void ibar() {
-  return __builtin_loongarch_ibar(0);
+  __ibar(0);
+  __builtin_loongarch_ibar(0);
 }
 
 // LA32-LABEL: @loongarch_break(
 // LA32-NEXT:  entry:
 // LA32-NEXT:    call void @llvm.loongarch.break(i32 1)
+// LA32-NEXT:    call void @llvm.loongarch.break(i32 1)
 // LA32-NEXT:    ret void
 //
 void loongarch_break() {
+  __break(1);
   __builtin_loongarch_break(1);
 }
 
 // LA32-LABEL: @syscall(
 // LA32-NEXT:  entry:
 // LA32-NEXT:    call void @llvm.loongarch.syscall(i32 1)
+// LA32-NEXT:    call void @llvm.loongarch.syscall(i32 1)
 // LA32-NEXT:    ret void
 //
 void syscall() {
+  __syscall(1);
   __builtin_loongarch_syscall(1);
 }
 
 // LA32-LABEL: @csrrd_w(
 // LA32-NEXT:  entry:
 // LA32-NEXT:    [[A:%.*]] = alloca i32, align 4
 // LA32-NEXT:    [[B:%.*]] = alloca i32, align 4
 // LA32-NEXT:    [[TMP0:%.*]] = call i32 @llvm.loongarch.csrrd.w(i32 1)

clang/test/CodeGen/LoongArch/intrinsic-la64.c

 // NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py
 // RUN: %clang_cc1 -triple loongarch64 -O2 -emit-llvm %s -o - | FileCheck %s
 
 #include <larchintrin.h>
 
 // CHECK-LABEL: @dbar(
 // CHECK-NEXT:  entry:
 // CHECK-NEXT:    tail call void @llvm.loongarch.dbar(i32 0)
+// CHECK-NEXT:    tail call void @llvm.loongarch.dbar(i32 0)
 // CHECK-NEXT:    ret void
 //
 void dbar() {
-  return __builtin_loongarch_dbar(0);
+  __dbar(0);
+  __builtin_loongarch_dbar(0);
 }
 
 // CHECK-LABEL: @ibar(
 // CHECK-NEXT:  entry:
 // CHECK-NEXT:    tail call void @llvm.loongarch.ibar(i32 0)
+// CHECK-NEXT:    tail call void @llvm.loongarch.ibar(i32 0)
 // CHECK-NEXT:    ret void
 //
 void ibar() {
-  return __builtin_loongarch_ibar(0);
+  __ibar(0);
+  __builtin_loongarch_ibar(0);
 }
 
 // CHECK-LABEL: @loongarch_break(
 // CHECK-NEXT:  entry:
 // CHECK-NEXT:    tail call void @llvm.loongarch.break(i32 1)
+// CHECK-NEXT:    tail call void @llvm.loongarch.break(i32 1)
 // CHECK-NEXT:    ret void
 //
 void loongarch_break() {
+  __break(1);
   __builtin_loongarch_break(1);
 }
 
 // CHECK-LABEL: @syscall(
 // CHECK-NEXT:  entry:
 // CHECK-NEXT:    tail call void @llvm.loongarch.syscall(i32 1)
+// CHECK-NEXT:    tail call void @llvm.loongarch.syscall(i32 1)
 // CHECK-NEXT:    ret void
 //
 void syscall() {
+  __syscall(1);
   __builtin_loongarch_syscall(1);
 }
 
 // CHECK-LABEL: @csrrd_w(
 // CHECK-NEXT:  entry:
 // CHECK-NEXT:    [[TMP0:%.*]] = tail call i32 @llvm.loongarch.csrrd.w(i32 1)
 // CHECK-NEXT:    [[TMP1:%.*]] = tail call i32 @llvm.loongarch.csrrd.w(i32 1)
 // CHECK-NEXT:    ret i32 0

 unsigned int csrxchg_w(unsigned int a, unsigned int b) {
   unsigned int c = __csrxchg_w(a, b, 1);
   unsigned int d = __builtin_loongarch_csrxchg_w(a, b, 1);
   return 0;
 }
 
 // CHECK-LABEL: @crc_w_b_w(
 // CHECK-NEXT:  entry:
-// CHECK-NEXT:    [[TMP0:%.*]] = tail call i32 @llvm.loongarch.crc.w.b.w(i32 [[A:%.*]], i32 [[B:%.*]])
-// CHECK-NEXT:    ret i32 [[TMP0]]
+// CHECK-NEXT:    [[TMP0:%.*]] = shl i32 [[A:%.*]], 24
+// CHECK-NEXT:    [[CONV_I:%.*]] = ashr exact i32 [[TMP0]], 24
+// CHECK-NEXT:    [[TMP1:%.*]] = tail call i32 @llvm.loongarch.crc.w.b.w(i32 [[CONV_I]], i32 [[B:%.*]])
+// CHECK-NEXT:    [[TMP2:%.*]] = tail call i32 @llvm.loongarch.crc.w.b.w(i32 [[A]], i32 [[B]])
+// CHECK-NEXT:    ret i32 0
 //
 int crc_w_b_w(int a, int b) {
-  return __builtin_loongarch_crc_w_b_w(a, b);
+  int c = __crc_w_b_w(a, b);
+  int d = __builtin_loongarch_crc_w_b_w(a, b);
+  return 0;
 }
 
 // CHECK-LABEL: @crc_w_h_w(
 // CHECK-NEXT:  entry:
-// CHECK-NEXT:    [[TMP0:%.*]] = tail call i32 @llvm.loongarch.crc.w.h.w(i32 [[A:%.*]], i32 [[B:%.*]])
-// CHECK-NEXT:    ret i32 [[TMP0]]
+// CHECK-NEXT:    [[TMP0:%.*]] = shl i32 [[A:%.*]], 16
+// CHECK-NEXT:    [[CONV_I:%.*]] = ashr exact i32 [[TMP0]], 16
+// CHECK-NEXT:    [[TMP1:%.*]] = tail call i32 @llvm.loongarch.crc.w.h.w(i32 [[CONV_I]], i32 [[B:%.*]])
+// CHECK-NEXT:    [[TMP2:%.*]] = tail call i32 @llvm.loongarch.crc.w.h.w(i32 [[A]], i32 [[B]])
+// CHECK-NEXT:    ret i32 0
 //
 int crc_w_h_w(int a, int b) {
-  return __builtin_loongarch_crc_w_h_w(a, b);
+  int c = __crc_w_h_w(a, b);
+  int d = __builtin_loongarch_crc_w_h_w(a, b);
+  return 0;
 }
 
 // CHECK-LABEL: @crc_w_w_w(
 // CHECK-NEXT:  entry:
 // CHECK-NEXT:    [[TMP0:%.*]] = tail call i32 @llvm.loongarch.crc.w.w.w(i32 [[A:%.*]], i32 [[B:%.*]])
-// CHECK-NEXT:    ret i32 [[TMP0]]
+// CHECK-NEXT:    [[TMP1:%.*]] = tail call i32 @llvm.loongarch.crc.w.w.w(i32 [[A]], i32 [[B]])
+// CHECK-NEXT:    ret i32 0
 //
 int crc_w_w_w(int a, int b) {
-  return __builtin_loongarch_crc_w_w_w(a, b);
+  int c = __crc_w_w_w(a, b);
+  int d = __builtin_loongarch_crc_w_w_w(a, b);
+  return 0;
 }
 
 // CHECK-LABEL: @crc_w_d_w(
 // CHECK-NEXT:  entry:
 // CHECK-NEXT:    [[TMP0:%.*]] = tail call i32 @llvm.loongarch.crc.w.d.w(i64 [[A:%.*]], i32 [[B:%.*]])
-// CHECK-NEXT:    ret i32 [[TMP0]]
+// CHECK-NEXT:    [[TMP1:%.*]] = tail call i32 @llvm.loongarch.crc.w.d.w(i64 [[A]], i32 [[B]])
+// CHECK-NEXT:    ret i32 0
 //
 int crc_w_d_w(long int a, int b) {
-  return __builtin_loongarch_crc_w_d_w(a, b);
+  int c = __crc_w_d_w(a, b);
+  int d = __builtin_loongarch_crc_w_d_w(a, b);
+  return 0;
 }
 
 // CHECK-LABEL: @crcc_w_b_w(
 // CHECK-NEXT:  entry:
-// CHECK-NEXT:    [[TMP0:%.*]] = tail call i32 @llvm.loongarch.crcc.w.b.w(i32 [[A:%.*]], i32 [[B:%.*]])
-// CHECK-NEXT:    ret i32 [[TMP0]]
+// CHECK-NEXT:    [[TMP0:%.*]] = shl i32 [[A:%.*]], 24
+// CHECK-NEXT:    [[CONV_I:%.*]] = ashr exact i32 [[TMP0]], 24
+// CHECK-NEXT:    [[TMP1:%.*]] = tail call i32 @llvm.loongarch.crcc.w.b.w(i32 [[CONV_I]], i32 [[B:%.*]])
+// CHECK-NEXT:    [[TMP2:%.*]] = tail call i32 @llvm.loongarch.crcc.w.b.w(i32 [[A]], i32 [[B]])
+// CHECK-NEXT:    ret i32 0
 //
 int crcc_w_b_w(int a, int b) {
-  return __builtin_loongarch_crcc_w_b_w(a, b);
+  int c = __crcc_w_b_w(a, b);
+  int d = __builtin_loongarch_crcc_w_b_w(a, b);
+  return 0;
 }
 
 // CHECK-LABEL: @crcc_w_h_w(
 // CHECK-NEXT:  entry:
-// CHECK-NEXT:    [[TMP0:%.*]] = tail call i32 @llvm.loongarch.crcc.w.h.w(i32 [[A:%.*]], i32 [[B:%.*]])
-// CHECK-NEXT:    ret i32 [[TMP0]]
+// CHECK-NEXT:    [[TMP0:%.*]] = shl i32 [[A:%.*]], 16
+// CHECK-NEXT:    [[CONV_I:%.*]] = ashr exact i32 [[TMP0]], 16
+// CHECK-NEXT:    [[TMP1:%.*]] = tail call i32 @llvm.loongarch.crcc.w.h.w(i32 [[CONV_I]], i32 [[B:%.*]])
+// CHECK-NEXT:    [[TMP2:%.*]] = tail call i32 @llvm.loongarch.crcc.w.h.w(i32 [[A]], i32 [[B]])
+// CHECK-NEXT:    ret i32 0
 //
 int crcc_w_h_w(int a, int b) {
-  return __builtin_loongarch_crcc_w_h_w(a, b);
+  int c = __crcc_w_h_w(a, b);
+  int d = __builtin_loongarch_crcc_w_h_w(a, b);
+  return 0;
 }
 
 // CHECK-LABEL: @crcc_w_w_w(
 // CHECK-NEXT:  entry:
 // CHECK-NEXT:    [[TMP0:%.*]] = tail call i32 @llvm.loongarch.crcc.w.w.w(i32 [[A:%.*]], i32 [[B:%.*]])
-// CHECK-NEXT:    ret i32 [[TMP0]]
+// CHECK-NEXT:    [[TMP1:%.*]] = tail call i32 @llvm.loongarch.crcc.w.w.w(i32 [[A]], i32 [[B]])
+// CHECK-NEXT:    ret i32 0
 //
 int crcc_w_w_w(int a, int b) {
-  return __builtin_loongarch_crcc_w_w_w(a, b);
+  int c = __crcc_w_w_w(a, b);
+  int d = __builtin_loongarch_crcc_w_w_w(a, b);
+  return 0;
 }
 
 // CHECK-LABEL: @crcc_w_d_w(
 // CHECK-NEXT:  entry:
 // CHECK-NEXT:    [[TMP0:%.*]] = tail call i32 @llvm.loongarch.crcc.w.d.w(i64 [[A:%.*]], i32 [[B:%.*]])
-// CHECK-NEXT:    ret i32 [[TMP0]]
+// CHECK-NEXT:    [[TMP1:%.*]] = tail call i32 @llvm.loongarch.crcc.w.d.w(i64 [[A]], i32 [[B]])
+// CHECK-NEXT:    ret i32 0
 //
 int crcc_w_d_w(long int a, int b) {
-  return __builtin_loongarch_crcc_w_d_w(a, b);
+  int c = __crcc_w_d_w(a, b);
+  int d = __builtin_loongarch_crcc_w_d_w(a, b);
+  return 0;
 }
 
 // CHECK-LABEL: @csrrd_d(
 // CHECK-NEXT:  entry:
 // CHECK-NEXT:    [[TMP0:%.*]] = tail call i64 @llvm.loongarch.csrrd.d(i32 1)
 // CHECK-NEXT:    [[TMP1:%.*]] = tail call i64 @llvm.loongarch.csrrd.d(i32 1)
 // CHECK-NEXT:    ret i64 0
 //