1; RUN: llc -mtriple=armv7-none-eabi -mattr=-neon,-vfpv2 %s -o - | FileCheck %s -check-prefix=novfp 2; RUN: llc -mtriple=armv7-none-eabi -mattr=+neon %s -float-abi=hard -o - | FileCheck %s -check-prefix=vfp 3 4; vfp-LABEL: f1 5; vfp-CHECK: vadd.f32 s0, s0, s0 6 7; In the novfp case, the compiler is forced to assign a core register. 8; Although this register class can't be used with the vadd.f32 instruction, 9; the compiler behaved as expected since it is allowed to emit anything. 10 11; novfp-LABEL: f1 12; novfp-CHECK: vadd.f32 r0, r0, r0 13 14; This can be generated by a function such as: 15; void f1(float f) {asm volatile ("add.f32 $0, $0, $0" : : "X" (f));} 16 17define arm_aapcs_vfpcc void @f1(float %f) { 18entry: 19 call void asm sideeffect "vadd.f32 $0, $0, $0", "X" (float %f) nounwind 20 ret void 21} 22