clang/test/CodeGen/LoongArch/inline-asm-constraints.c

   1 // RUN: %clang_cc1 -triple loongarch32 -O2 -emit-llvm %s -o - | FileCheck %s
   2 // RUN: %clang_cc1 -triple loongarch64 -O2 -emit-llvm %s -o - | FileCheck %s
   3
   4 /// Test LoongArch specific inline assembly constraints.
   5
   6 float f;
   7 double d;
   8 void test_f(void) {
   9 // CHECK-LABEL: define{{.*}} void @test_f()
  10 // CHECK: [[FLT_ARG:%[a-zA-Z_0-9]+]] = load float, ptr @f
  11 // CHECK: call void asm sideeffect "", "f"(float [[FLT_ARG]])
  12   asm volatile ("" :: "f"(f));
  13 // CHECK: [[FLT_ARG:%[a-zA-Z_0-9]+]] = load double, ptr @d
  14 // CHECK: call void asm sideeffect "", "f"(double [[FLT_ARG]])
  15   asm volatile ("" :: "f"(d));
  16 }
  17
  18 void test_k(int *p, int idx) {
  19 // CHECK-LABEL: define{{.*}} void @test_k(ptr noundef %p, i32 noundef{{.*}} %idx)
  20 // CHECK: call void asm sideeffect "", "*k"(ptr elementtype(i32) %{{.*}})
  21   asm volatile("" :: "k"(*(p+idx)));
  22 }
  23
  24 void test_l(void) {
  25 // CHECK-LABEL: define{{.*}} void @test_l()
  26 // CHECK: call void asm sideeffect "", "l"(i32 32767)
  27   asm volatile ("" :: "l"(32767));
  28 // CHECK: call void asm sideeffect "", "l"(i32 -32768)
  29   asm volatile ("" :: "l"(-32768));
  30 }
  31
  32 void test_m(int *p) {
  33 // CHECK-LABEL: define{{.*}} void @test_m(ptr noundef %p)
  34 // CHECK: call void asm sideeffect "", "*m"(ptr nonnull elementtype(i32) %{{.*}})
  35   asm volatile("" :: "m"(*(p+4)));
  36 }
  37
  38 void test_I(void) {
  39 // CHECK-LABEL: define{{.*}} void @test_I()
  40 // CHECK: call void asm sideeffect "", "I"(i32 2047)
  41   asm volatile ("" :: "I"(2047));
  42 // CHECK: call void asm sideeffect "", "I"(i32 -2048)
  43   asm volatile ("" :: "I"(-2048));
  44 }
  45
  46 void test_J(void) {
  47 // CHECK-LABEL: define{{.*}} void @test_J()
  48 // CHECK: call void asm sideeffect "", "J"(i32 0)
  49   asm volatile ("" :: "J"(0));
  50 }
  51
  52 void test_K(void) {
  53 // CHECK-LABEL: define{{.*}} void @test_K()
  54 // CHECK: call void asm sideeffect "", "K"(i32 4095)
  55   asm volatile ("" :: "K"(4095));
  56 // CHECK: call void asm sideeffect "", "K"(i32 0)
  57   asm volatile ("" :: "K"(0));
  58 }
  59
  60 void test_ZB(int *p) {
  61 // CHECK-LABEL: define{{.*}} void @test_ZB(ptr noundef %p)
  62 // CHECK: call void asm sideeffect "", "*^ZB"(ptr elementtype(i32) %p)
  63   asm volatile ("" :: "ZB"(*p));
  64 }
  65
  66 void test_ZC(int *p) {
  67 // CHECK-LABEL: define{{.*}} void @test_ZC(ptr noundef %p)
  68 // CHECK: call void asm sideeffect "", "*^ZC"(ptr elementtype(i32) %p)
  69   asm volatile ("" :: "ZC"(*p));
  70 }