File: inline-asm-matching-ppc-vsx.c

package info (click to toggle)
llvm-toolchain-20 1%3A20.1.6-1~exp1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 2,111,304 kB
  • sloc: cpp: 7,438,677; ansic: 1,393,822; asm: 1,012,926; python: 241,650; f90: 86,635; objc: 75,479; lisp: 42,144; pascal: 17,286; sh: 10,027; ml: 5,082; perl: 4,730; awk: 3,523; makefile: 3,349; javascript: 2,251; xml: 892; fortran: 672
file content (26 lines) | stat: -rw-r--r-- 1,006 bytes parent folder | download | duplicates (10) 
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
 
// REQUIRES: powerpc-registered-target

// RUN: %clang_cc1 -triple powerpc64le-unknown-linux-gnu -target-feature +vsx \
// RUN:   -target-cpu pwr9 -emit-llvm %s -o - | FileCheck %s
// RUN: %clang_cc1 -triple powerpc64-unknown-linux-gnu -target-feature +vsx \
// RUN:   -target-cpu pwr9 -emit-llvm %s -o - | FileCheck %s
// RUN: %clang_cc1 -triple powerpc64-ibm-aix -target-feature +vsx \
// RUN:   -target-cpu pwr9 -emit-llvm %s -o - | FileCheck %s
// RUN: %clang_cc1 -triple powerpc-ibm-aix -target-feature +vsx \
// RUN:   -target-cpu pwr9 -emit-llvm %s -o - | FileCheck %s

// This case is to test VSX register support in the clobbers list for inline asm.
void testVSX (void) {
  unsigned int a = 0;
  unsigned int *dbell=&a;
  int d;
  __asm__ __volatile__ (
    "lxvw4x  32, 0, %2\n\t"
    "stxvw4x 32, 0, %1"
    : "=m"(*(volatile unsigned int*)(dbell))
    : "r" (dbell), "r" (&d)
    : "vs32"
  );
}

// CHECK: call void asm sideeffect "lxvw4x  32, 0, $2\0A\09stxvw4x 32, 0, $1", "=*m,r,r,~{vs32}"