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Replace X86 FMA intrinsic pseduo-instructions with def pats.
It looks like these pseudos were only used for pattern matching. Def pats are the appropriate way to do that. As a bonus, these intrinsics will now have memory operands folded properly, and better FMA3 variants selected where appropriate (see r199933). <rdar://problem/15611947> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200577 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -125,6 +125,7 @@ multiclass fma3s_rm<bits<8> opc, string OpcodeStr, X86MemOperand x86memop,
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"\t{$src3, $src2, $dst|$dst, $src2, $src3}"),
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[(set RC:$dst,
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(OpVT (OpNode RC:$src2, RC:$src1, RC:$src3)))]>;
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let mayLoad = 1 in
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def m : FMA3<opc, MRMSrcMem, (outs RC:$dst),
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(ins RC:$src1, RC:$src2, x86memop:$src3),
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@ -134,30 +135,10 @@ multiclass fma3s_rm<bits<8> opc, string OpcodeStr, X86MemOperand x86memop,
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(OpVT (OpNode RC:$src2, RC:$src1,
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(mem_frag addr:$src3))))]>;
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}
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multiclass fma3s_rm_int<bits<8> opc, string OpcodeStr, Operand memop,
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ComplexPattern mem_cpat, Intrinsic IntId,
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RegisterClass RC> {
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let isCodeGenOnly = 1 in {
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let isCommutable = 1 in
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def r_Int : FMA3<opc, MRMSrcReg, (outs VR128:$dst),
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(ins VR128:$src1, VR128:$src2, VR128:$src3),
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!strconcat(OpcodeStr,
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"\t{$src3, $src2, $dst|$dst, $src2, $src3}"),
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[(set VR128:$dst, (IntId VR128:$src2, VR128:$src1,
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VR128:$src3))]>;
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def m_Int : FMA3<opc, MRMSrcMem, (outs VR128:$dst),
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(ins VR128:$src1, VR128:$src2, memop:$src3),
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!strconcat(OpcodeStr,
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"\t{$src3, $src2, $dst|$dst, $src2, $src3}"),
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[(set VR128:$dst,
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(IntId VR128:$src2, VR128:$src1, mem_cpat:$src3))]>;
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} // isCodeGenOnly
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}
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} // Constraints = "$src1 = $dst"
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multiclass fma3s_forms<bits<8> opc132, bits<8> opc213, bits<8> opc231,
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string OpStr, string PackTy, Intrinsic Int,
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string OpStr, string PackTy, string PT2, Intrinsic Int,
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SDNode OpNode, RegisterClass RC, ValueType OpVT,
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X86MemOperand x86memop, Operand memop, PatFrag mem_frag,
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ComplexPattern mem_cpat> {
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@ -169,18 +150,32 @@ let neverHasSideEffects = 1 in {
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}
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defm r213 : fma3s_rm<opc213, !strconcat(OpStr, "213", PackTy),
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x86memop, RC, OpVT, mem_frag, OpNode>,
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fma3s_rm_int<opc213, !strconcat(OpStr, "213", PackTy),
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memop, mem_cpat, Int, RC>;
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x86memop, RC, OpVT, mem_frag, OpNode>;
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}
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multiclass fma3s<bits<8> opc132, bits<8> opc213, bits<8> opc231,
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string OpStr, Intrinsic IntF32, Intrinsic IntF64,
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SDNode OpNode> {
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defm SS : fma3s_forms<opc132, opc213, opc231, OpStr, "ss", IntF32, OpNode,
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defm SS : fma3s_forms<opc132, opc213, opc231, OpStr, "ss", "SS", IntF32, OpNode,
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FR32, f32, f32mem, ssmem, loadf32, sse_load_f32>;
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defm SD : fma3s_forms<opc132, opc213, opc231, OpStr, "sd", IntF64, OpNode,
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defm SD : fma3s_forms<opc132, opc213, opc231, OpStr, "sd", "PD", IntF64, OpNode,
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FR64, f64, f64mem, sdmem, loadf64, sse_load_f64>, VEX_W;
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def : Pat<(IntF32 VR128:$src1, VR128:$src2, VR128:$src3),
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(COPY_TO_REGCLASS
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(!cast<Instruction>(NAME#"SSr213r")
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(COPY_TO_REGCLASS $src2, FR32),
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(COPY_TO_REGCLASS $src1, FR32),
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(COPY_TO_REGCLASS $src3, FR32)),
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VR128)>;
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def : Pat<(IntF64 VR128:$src1, VR128:$src2, VR128:$src3),
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(COPY_TO_REGCLASS
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(!cast<Instruction>(NAME#"SDr213r")
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(COPY_TO_REGCLASS $src2, FR64),
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(COPY_TO_REGCLASS $src1, FR64),
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(COPY_TO_REGCLASS $src3, FR64)),
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VR128)>;
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}
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defm VFMADD : fma3s<0x99, 0xA9, 0xB9, "vfmadd", int_x86_fma_vfmadd_ss,
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@ -1274,8 +1274,6 @@ X86InstrInfo::X86InstrInfo(X86TargetMachine &tm)
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{ X86::VFMADDSDr132r, X86::VFMADDSDr132m, 0 },
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{ X86::VFMADDSSr213r, X86::VFMADDSSr213m, 0 },
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{ X86::VFMADDSDr213r, X86::VFMADDSDr213m, 0 },
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{ X86::VFMADDSSr213r_Int, X86::VFMADDSSr213m_Int, 0 },
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{ X86::VFMADDSDr213r_Int, X86::VFMADDSDr213m_Int, 0 },
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{ X86::VFMADDPSr231r, X86::VFMADDPSr231m, TB_ALIGN_16 },
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{ X86::VFMADDPDr231r, X86::VFMADDPDr231m, TB_ALIGN_16 },
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@ -1296,8 +1294,6 @@ X86InstrInfo::X86InstrInfo(X86TargetMachine &tm)
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{ X86::VFNMADDSDr132r, X86::VFNMADDSDr132m, 0 },
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{ X86::VFNMADDSSr213r, X86::VFNMADDSSr213m, 0 },
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{ X86::VFNMADDSDr213r, X86::VFNMADDSDr213m, 0 },
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{ X86::VFNMADDSSr213r_Int, X86::VFNMADDSSr213m_Int, 0 },
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{ X86::VFNMADDSDr213r_Int, X86::VFNMADDSDr213m_Int, 0 },
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{ X86::VFNMADDPSr231r, X86::VFNMADDPSr231m, TB_ALIGN_16 },
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{ X86::VFNMADDPDr231r, X86::VFNMADDPDr231m, TB_ALIGN_16 },
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@ -1318,8 +1314,6 @@ X86InstrInfo::X86InstrInfo(X86TargetMachine &tm)
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{ X86::VFMSUBSDr132r, X86::VFMSUBSDr132m, 0 },
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{ X86::VFMSUBSSr213r, X86::VFMSUBSSr213m, 0 },
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{ X86::VFMSUBSDr213r, X86::VFMSUBSDr213m, 0 },
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{ X86::VFMSUBSSr213r_Int, X86::VFMSUBSSr213m_Int, 0 },
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{ X86::VFMSUBSDr213r_Int, X86::VFMSUBSDr213m_Int, 0 },
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{ X86::VFMSUBPSr231r, X86::VFMSUBPSr231m, TB_ALIGN_16 },
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{ X86::VFMSUBPDr231r, X86::VFMSUBPDr231m, TB_ALIGN_16 },
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@ -1340,8 +1334,6 @@ X86InstrInfo::X86InstrInfo(X86TargetMachine &tm)
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{ X86::VFNMSUBSDr132r, X86::VFNMSUBSDr132m, 0 },
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{ X86::VFNMSUBSSr213r, X86::VFNMSUBSSr213m, 0 },
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{ X86::VFNMSUBSDr213r, X86::VFNMSUBSDr213m, 0 },
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{ X86::VFNMSUBSSr213r_Int, X86::VFNMSUBSSr213m_Int, 0 },
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{ X86::VFNMSUBSDr213r_Int, X86::VFNMSUBSDr213m_Int, 0 },
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{ X86::VFNMSUBPSr231r, X86::VFNMSUBPSr231m, TB_ALIGN_16 },
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{ X86::VFNMSUBPDr231r, X86::VFNMSUBPDr231m, TB_ALIGN_16 },
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@ -3,7 +3,7 @@
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; RUN: llc < %s -mcpu=bdver2 -mtriple=x86_64-pc-win32 -mattr=-fma4 | FileCheck %s
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define <4 x float> @test_x86_fmadd_ss(<4 x float> %a0, <4 x float> %a1, <4 x float> %a2) {
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; CHECK: fmadd213ss %xmm
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; CHECK: fmadd213ss (%r8), %xmm
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%res = call <4 x float> @llvm.x86.fma.vfmadd.ss(<4 x float> %a0, <4 x float> %a1, <4 x float> %a2) nounwind
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ret <4 x float> %res
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}
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@ -24,7 +24,7 @@ define <8 x float> @test_x86_fmadd_ps_y(<8 x float> %a0, <8 x float> %a1, <8 x f
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declare <8 x float> @llvm.x86.fma.vfmadd.ps.256(<8 x float>, <8 x float>, <8 x float>) nounwind readnone
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define <4 x float> @test_x86_fnmadd_ss(<4 x float> %a0, <4 x float> %a1, <4 x float> %a2) {
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; CHECK: fnmadd213ss %xmm
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; CHECK: fnmadd213ss (%r8), %xmm
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%res = call <4 x float> @llvm.x86.fma.vfnmadd.ss(<4 x float> %a0, <4 x float> %a1, <4 x float> %a2) nounwind
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ret <4 x float> %res
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}
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