File: riscv-inline-asm.c

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2~deb10u1
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 995,836 kB
  • sloc: cpp: 4,767,656; ansic: 760,916; asm: 477,436; python: 170,940; objc: 69,804; lisp: 29,914; sh: 23,855; f90: 18,173; pascal: 7,551; perl: 7,471; ml: 5,603; awk: 3,489; makefile: 2,573; xml: 915; cs: 573; fortran: 503; javascript: 452
file content (46 lines) | stat: -rw-r--r-- 1,361 bytes parent folder | download | duplicates (4)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
// RUN: %clang_cc1 -triple riscv32 -O2 -emit-llvm %s -o - \
// RUN:     | FileCheck %s
// RUN: %clang_cc1 -triple riscv64 -O2 -emit-llvm %s -o - \
// RUN:     | FileCheck %s

// Test RISC-V specific inline assembly constraints.

void test_I() {
// CHECK-LABEL: define void @test_I()
// CHECK: call void asm sideeffect "", "I"(i32 2047)
  asm volatile ("" :: "I"(2047));
// CHECK: call void asm sideeffect "", "I"(i32 -2048)
  asm volatile ("" :: "I"(-2048));
}

void test_J() {
// CHECK-LABEL: define void @test_J()
// CHECK: call void asm sideeffect "", "J"(i32 0)
  asm volatile ("" :: "J"(0));
}

void test_K() {
// CHECK-LABEL: define void @test_K()
// CHECK: call void asm sideeffect "", "K"(i32 31)
  asm volatile ("" :: "K"(31));
// CHECK: call void asm sideeffect "", "K"(i32 0)
  asm volatile ("" :: "K"(0));
}

float f;
double d;
void test_f() {
// CHECK-LABEL: define void @test_f()
// CHECK: [[FLT_ARG:%[a-zA-Z_0-9]+]] = load float, float* @f
// CHECK: call void asm sideeffect "", "f"(float [[FLT_ARG]])
  asm volatile ("" :: "f"(f));
// CHECK: [[FLT_ARG:%[a-zA-Z_0-9]+]] = load double, double* @d
// CHECK: call void asm sideeffect "", "f"(double [[FLT_ARG]])
  asm volatile ("" :: "f"(d));
}

void test_A(int *p) {
// CHECK-LABEL: define void @test_A(i32* %p)
// CHECK: call void asm sideeffect "", "*A"(i32* %p)
  asm volatile("" :: "A"(*p));
}