clang/test/CodeGen/arm-vfp-asm-constraint.c

   1 // REQUIRES: arm-registered-target
   2 // RUN: %clang_cc1 -triple armv7-unknown-unknown -mfpmath vfp -emit-llvm -o - %s | FileCheck %s
   3
   4 // CHECK-NOT: error:
   5
   6 double fabs(double x) { // CHECK-LABEL: @fabs(
   7   // CHECK: call double asm "vabs.f64 ${0:P}, ${1:P}", "=w,w"(double
   8   __asm__("vabs.f64 %P0, %P1"
   9           : "=w"(x)
  10           : "w"(x));
  11   return x;
  12 }
  13
  14 float fabsf(float x) { // CHECK-LABEL: @fabsf(
  15   // CHECK: call float asm "vabs.f32 $0, $1", "=t,t"(float
  16   __asm__("vabs.f32 %0, %1"
  17           : "=t"(x)
  18           : "t"(x));
  19   return x;
  20 }
  21
  22 double sqrt(double x) { // CHECK-LABEL: @sqrt(
  23   // CHECK: call double asm "vsqrt.f64 ${0:P}, ${1:P}", "=w,w"(double
  24   __asm__("vsqrt.f64 %P0, %P1"
  25           : "=w"(x)
  26           : "w"(x));
  27   return x;
  28 }
  29
  30 float sqrtf(float x) { // CHECK-LABEL: @sqrtf(
  31   // CHECK: call float asm "vsqrt.f32 $0, $1", "=t,t"(float
  32   __asm__("vsqrt.f32 %0, %1"
  33           : "=t"(x)
  34           : "t"(x));
  35   return x;
  36 }