clang/test/CodeGen/nvptx-inlineasm-ptx.c

   1 // RUN: %clang_cc1 -triple nvptx-unknown-unknown -O3 -S -o - %s -emit-llvm | FileCheck %s
   2 // RUN: %clang_cc1 -triple nvptx64-unknown-unknown -O3 -S -o - %s -emit-llvm | FileCheck %s
   3
   4 void constraints(void) {
   5   char           c;
   6   unsigned char  uc;
   7   short          s;
   8   unsigned short us;
   9   int            i;
  10   unsigned int   ui;
  11   long long      ll;
  12   unsigned long long ull;
  13   float          f;
  14   double         d;
  15
  16   // CHECK: i8 asm sideeffect "mov.b8 $0, $1;", "=c,c"
  17   asm volatile ("mov.b8 %0, %1;" : "=c"(c) : "c"(c));
  18   // CHECK: i8 asm sideeffect "mov.b8 $0, $1;", "=c,c"
  19   asm volatile ("mov.b8 %0, %1;" : "=c"(uc) : "c"(uc));
  20
  21   // CHECK: i16 asm sideeffect "mov.b16 $0, $1;", "=h,h"
  22   asm volatile ("mov.b16 %0, %1;" : "=h"(s) : "h"(s));
  23   // CHECK: i16 asm sideeffect "mov.b16 $0, $1;", "=h,h"
  24   asm volatile ("mov.b16 %0, %1;" : "=h"(us) : "h"(us));
  25
  26   // CHECK: i32 asm sideeffect "mov.b32 $0, $1;", "=r,r"
  27   asm volatile ("mov.b32 %0, %1;" : "=r"(i) : "r"(i));
  28   // CHECK: i32 asm sideeffect "mov.b32 $0, $1;", "=r,r"
  29   asm volatile ("mov.b32 %0, %1;" : "=r"(ui) : "r"(ui));
  30
  31   // CHECK: i64 asm sideeffect "mov.b64 $0, $1;", "=l,l"
  32   asm volatile ("mov.b64 %0, %1;" : "=l"(ll) : "l"(ll));
  33   // CHECK: i64 asm sideeffect "mov.b64 $0, $1;", "=l,l"
  34   asm volatile ("mov.b64 %0, %1;" : "=l"(ull) : "l"(ull));
  35
  36   // CHECK: float asm sideeffect "mov.b32 $0, $1;", "=f,f"
  37   asm volatile ("mov.b32 %0, %1;" : "=f"(f) : "f"(f));
  38   // CHECK: double asm sideeffect "mov.b64 $0, $1;", "=d,d"
  39   asm volatile ("mov.b64 %0, %1;" : "=d"(d) : "d"(d));
  40 }