30 lines · c
1// REQUIRES: arm-registered-target2// RUN: %clang_cc1 -triple arm -target-feature -fpregs -verify=arm-nofp %s3 4// w: A 32, 64, or 128-bit floating-point/SIMD register: s0-s31, d0-d31, or q0-q15.5float test_w(float x) {6 __asm__("vsqrt.f32 %0, %1"7 : "=w"(x)8 : "w"(x)); // No error expected.9 // arm-nofp-error@7 {{invalid output constraint '=w' in asm}}10 return x;11}12 13// x: A 32, 64, or 128-bit floating-point/SIMD register: s0-s15, d0-d7, or q0-q3.14float test_x(float x) {15 __asm__("vsqrt.f32 %0, %1"16 : "=x"(x)17 : "x"(x)); // No error expected.18 // arm-nofp-error@16 {{invalid output constraint '=x' in asm}}19 return x;20}21 22// t: A 32, 64, or 128-bit floating-point/SIMD register: s0-s31, d0-d15, or q0-q7.23float test_t(float x) {24 __asm__("vsqrt.f32 %0, %1"25 : "=t"(x)26 : "t"(x)); // No error expected.27 // arm-nofp-error@25 {{invalid output constraint '=t' in asm}}28 return x;29}30