diff --git a/llvm/lib/Target/ARM/ARMISelLowering.cpp b/llvm/lib/Target/ARM/ARMISelLowering.cpp index 544fd0efd05bcf..68bc71b28585ef 100644 --- a/llvm/lib/Target/ARM/ARMISelLowering.cpp +++ b/llvm/lib/Target/ARM/ARMISelLowering.cpp @@ -20163,6 +20163,8 @@ RCPair ARMTargetLowering::getRegForInlineAsmConstraint( case 't': if (VT == MVT::Other) break; + if (VT == MVT::f16 || VT == MVT::bf16) + return RCPair(0U, &ARM::HPRRegClass); if (VT == MVT::f32 || VT == MVT::i32) return RCPair(0U, &ARM::SPRRegClass); if (VT.getSizeInBits() == 64) diff --git a/llvm/test/CodeGen/ARM/inlineasm-fp-half.ll b/llvm/test/CodeGen/ARM/inlineasm-fp-half.ll new file mode 100644 index 00000000000000..b2a894f49c52e5 --- /dev/null +++ b/llvm/test/CodeGen/ARM/inlineasm-fp-half.ll @@ -0,0 +1,32 @@ +; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py +; RUN: llc -mtriple=arm -mattr=+armv8.2-a,+fp-armv8,+fullfp16,+bf16,-neon %s -o - | FileCheck %s +; RUN: llc -mtriple=thumb -mattr=+armv8.2-a,+fp-armv8,+fullfp16,+bf16,-neon %s -o - | FileCheck %s + + +define arm_aapcscc half @f(half %x) nounwind { +; CHECK-LABEL: f: +; CHECK: @ %bb.0: @ %entry +; CHECK-NEXT: vmov.f16 s0, r0 +; CHECK-NEXT: @APP +; CHECK-NEXT: vsqrt.f16 s0, s0 +; CHECK-NEXT: @NO_APP +; CHECK-NEXT: vmov r0, s0 +; CHECK-NEXT: bx lr +entry: + %0 = tail call half asm "vsqrt.f16 $0, $1", "=t,t"(half %x) + ret half %0 +} + +define arm_aapcscc bfloat @h(bfloat %x) nounwind { +; CHECK-LABEL: h: +; CHECK: @ %bb.0: @ %entry +; CHECK-NEXT: vmov.f16 s0, r0 +; CHECK-NEXT: @APP +; CHECK-NEXT: vmov.f32 s0, s0 +; CHECK-NEXT: @NO_APP +; CHECK-NEXT: vmov.f16 r0, s0 +; CHECK-NEXT: bx lr +entry: + %0 = tail call bfloat asm "vmov.f32 $0, $1", "=t,t"(bfloat %x) + ret bfloat %0 +}