From 874cadaf210d4ab05eadc64a41228df0f5078eb7 Mon Sep 17 00:00:00 2001 From: Dan Gohman Date: Sun, 28 Feb 2010 00:17:42 +0000 Subject: [PATCH] Implement XMM subregs. Extracting the low element of a vector is now done with EXTRACT_SUBREG, and the zero-extension performed by load movss is now modeled with SUBREG_TO_REG, and so on. Register-to-register movss and movsd are no longer considered copies; they are two-address instructions which insert a scalar into a vector. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97354 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/X86/X86InstrInfo.cpp | 18 +-- lib/Target/X86/X86InstrSSE.td | 241 +++++++++++++---------------- lib/Target/X86/X86RegisterInfo.cpp | 6 + lib/Target/X86/X86RegisterInfo.h | 3 +- lib/Target/X86/X86RegisterInfo.td | 63 +++++--- 5 files changed, 168 insertions(+), 163 deletions(-) diff --git a/lib/Target/X86/X86InstrInfo.cpp b/lib/Target/X86/X86InstrInfo.cpp index 494949fab38..39bda04b4d1 100644 --- a/lib/Target/X86/X86InstrInfo.cpp +++ b/lib/Target/X86/X86InstrInfo.cpp @@ -276,11 +276,8 @@ X86InstrInfo::X86InstrInfo(X86TargetMachine &tm) { X86::MOVDQArr, X86::MOVDQAmr, 0, 16 }, { X86::MOVPDI2DIrr, X86::MOVPDI2DImr, 0, 0 }, { X86::MOVPQIto64rr,X86::MOVPQI2QImr, 0, 0 }, - { X86::MOVPS2SSrr, X86::MOVPS2SSmr, 0, 0 }, - { X86::MOVSDrr, X86::MOVSDmr, 0, 0 }, { X86::MOVSDto64rr, X86::MOVSDto64mr, 0, 0 }, { X86::MOVSS2DIrr, X86::MOVSS2DImr, 0, 0 }, - { X86::MOVSSrr, X86::MOVSSmr, 0, 0 }, { X86::MOVUPDrr, X86::MOVUPDmr, 0, 0 }, { X86::MOVUPSrr, X86::MOVUPSmr, 0, 0 }, { X86::MUL16r, X86::MUL16m, 1, 0 }, @@ -389,12 +386,8 @@ X86InstrInfo::X86InstrInfo(X86TargetMachine &tm) { X86::MOVDI2PDIrr, X86::MOVDI2PDIrm, 0 }, { X86::MOVDI2SSrr, X86::MOVDI2SSrm, 0 }, { X86::MOVDQArr, X86::MOVDQArm, 16 }, - { X86::MOVSD2PDrr, X86::MOVSD2PDrm, 0 }, - { X86::MOVSDrr, X86::MOVSDrm, 0 }, { X86::MOVSHDUPrr, X86::MOVSHDUPrm, 16 }, { X86::MOVSLDUPrr, X86::MOVSLDUPrm, 16 }, - { X86::MOVSS2PSrr, X86::MOVSS2PSrm, 0 }, - { X86::MOVSSrr, X86::MOVSSrm, 0 }, { X86::MOVSX16rr8, X86::MOVSX16rm8, 0 }, { X86::MOVSX32rr16, X86::MOVSX32rm16, 0 }, { X86::MOVSX32rr8, X86::MOVSX32rm8, 0 }, @@ -682,23 +675,20 @@ bool X86InstrInfo::isMoveInstr(const MachineInstr& MI, case X86::MOV16rr: case X86::MOV32rr: case X86::MOV64rr: - case X86::MOVSSrr: - case X86::MOVSDrr: // FP Stack register class copies case X86::MOV_Fp3232: case X86::MOV_Fp6464: case X86::MOV_Fp8080: case X86::MOV_Fp3264: case X86::MOV_Fp3280: case X86::MOV_Fp6432: case X86::MOV_Fp8032: - + + // Note that MOVSSrr and MOVSDrr are not considered copies. FR32 and FR64 + // copies are done with FsMOVAPSrr and FsMOVAPDrr. + case X86::FsMOVAPSrr: case X86::FsMOVAPDrr: case X86::MOVAPSrr: case X86::MOVAPDrr: case X86::MOVDQArr: - case X86::MOVSS2PSrr: - case X86::MOVSD2PDrr: - case X86::MOVPS2SSrr: - case X86::MOVPD2SDrr: case X86::MMX_MOVQ64rr: assert(MI.getNumOperands() >= 2 && MI.getOperand(0).isReg() && diff --git a/lib/Target/X86/X86InstrSSE.td b/lib/Target/X86/X86InstrSSE.td index 7e4655dd93a..2743dba8a95 100644 --- a/lib/Target/X86/X86InstrSSE.td +++ b/lib/Target/X86/X86InstrSSE.td @@ -370,18 +370,56 @@ let Uses = [EFLAGS], usesCustomInserter = 1 in { // SSE1 Instructions //===----------------------------------------------------------------------===// -// Move Instructions -let neverHasSideEffects = 1 in -def MOVSSrr : SSI<0x10, MRMSrcReg, (outs FR32:$dst), (ins FR32:$src), - "movss\t{$src, $dst|$dst, $src}", []>; +// Move Instructions. Register-to-register movss is not used for FR32 +// register copies because it's a partial register update; FsMOVAPSrr is +// used instead. Register-to-register movss is not modeled as an INSERT_SUBREG +// because INSERT_SUBREG requires that the insert be implementable in terms of +// a copy, and just mentioned, we don't use movss for copies. +let Constraints = "$src1 = $dst" in +def MOVSSrr : SSI<0x10, MRMSrcReg, + (outs VR128:$dst), (ins VR128:$src1, FR32:$src2), + "movss\t{$src2, $dst|$dst, $src2}", + [(set VR128:$dst, + (movl VR128:$src1, (scalar_to_vector FR32:$src2)))]>; + +// Extract the low 32-bit value from one vector and insert it into another. +let AddedComplexity = 15 in +def : Pat<(v4f32 (movl VR128:$src1, VR128:$src2)), + (MOVSSrr VR128:$src1, + (EXTRACT_SUBREG (v4f32 VR128:$src2), x86_subreg_ss))>; + +// Implicitly promote a 32-bit scalar to a vector. +def : Pat<(v4f32 (scalar_to_vector FR32:$src)), + (INSERT_SUBREG (v4f32 (IMPLICIT_DEF)), FR32:$src, x86_subreg_ss)>; + +// Loading from memory automatically zeroing upper bits. let canFoldAsLoad = 1, isReMaterializable = 1 in def MOVSSrm : SSI<0x10, MRMSrcMem, (outs FR32:$dst), (ins f32mem:$src), "movss\t{$src, $dst|$dst, $src}", [(set FR32:$dst, (loadf32 addr:$src))]>; + +// MOVSSrm zeros the high parts of the register; represent this +// with SUBREG_TO_REG. +let AddedComplexity = 20 in { +def : Pat<(v4f32 (X86vzmovl (v4f32 (scalar_to_vector (loadf32 addr:$src))))), + (SUBREG_TO_REG (i32 0), (MOVSSrm addr:$src), x86_subreg_ss)>; +def : Pat<(v4f32 (scalar_to_vector (loadf32 addr:$src))), + (SUBREG_TO_REG (i32 0), (MOVSSrm addr:$src), x86_subreg_ss)>; +def : Pat<(v4f32 (X86vzmovl (loadv4f32 addr:$src))), + (SUBREG_TO_REG (i32 0), (MOVSSrm addr:$src), x86_subreg_ss)>; +} + +// Store scalar value to memory. def MOVSSmr : SSI<0x11, MRMDestMem, (outs), (ins f32mem:$dst, FR32:$src), "movss\t{$src, $dst|$dst, $src}", [(store FR32:$src, addr:$dst)]>; +// Extract and store. +def : Pat<(store (f32 (vector_extract (v4f32 VR128:$src), (iPTR 0))), + addr:$dst), + (MOVSSmr addr:$dst, + (EXTRACT_SUBREG (v4f32 VR128:$src), x86_subreg_ss))>; + // Conversion instructions def CVTTSS2SIrr : SSI<0x2C, MRMSrcReg, (outs GR32:$dst), (ins FR32:$src), "cvttss2si\t{$src, $dst|$dst, $src}", @@ -1090,76 +1128,67 @@ def : Pat<(v16i8 immAllZerosV), (V_SET0)>; def : Pat<(v2f64 immAllZerosV), (V_SET0)>; def : Pat<(v4f32 immAllZerosV), (V_SET0)>; -// FR32 to 128-bit vector conversion. -let isAsCheapAsAMove = 1 in -def MOVSS2PSrr : SSI<0x10, MRMSrcReg, (outs VR128:$dst), (ins FR32:$src), - "movss\t{$src, $dst|$dst, $src}", - [(set VR128:$dst, - (v4f32 (scalar_to_vector FR32:$src)))]>; -def MOVSS2PSrm : SSI<0x10, MRMSrcMem, (outs VR128:$dst), (ins f32mem:$src), - "movss\t{$src, $dst|$dst, $src}", - [(set VR128:$dst, - (v4f32 (scalar_to_vector (loadf32 addr:$src))))]>; - -// FIXME: may not be able to eliminate this movss with coalescing the src and -// dest register classes are different. We really want to write this pattern -// like this: -// def : Pat<(f32 (vector_extract (v4f32 VR128:$src), (iPTR 0))), -// (f32 FR32:$src)>; -let isAsCheapAsAMove = 1 in -def MOVPS2SSrr : SSI<0x10, MRMSrcReg, (outs FR32:$dst), (ins VR128:$src), - "movss\t{$src, $dst|$dst, $src}", - [(set FR32:$dst, (vector_extract (v4f32 VR128:$src), - (iPTR 0)))]>; -def MOVPS2SSmr : SSI<0x11, MRMDestMem, (outs), (ins f32mem:$dst, VR128:$src), - "movss\t{$src, $dst|$dst, $src}", - [(store (f32 (vector_extract (v4f32 VR128:$src), - (iPTR 0))), addr:$dst)]>; - - -// Move to lower bits of a VR128, leaving upper bits alone. -// Three operand (but two address) aliases. -let Constraints = "$src1 = $dst" in { -let neverHasSideEffects = 1 in - def MOVLSS2PSrr : SSI<0x10, MRMSrcReg, - (outs VR128:$dst), (ins VR128:$src1, FR32:$src2), - "movss\t{$src2, $dst|$dst, $src2}", []>; - - let AddedComplexity = 15 in - def MOVLPSrr : SSI<0x10, MRMSrcReg, - (outs VR128:$dst), (ins VR128:$src1, VR128:$src2), - "movss\t{$src2, $dst|$dst, $src2}", - [(set VR128:$dst, - (v4f32 (movl VR128:$src1, VR128:$src2)))]>; -} - -// Move to lower bits of a VR128 and zeroing upper bits. -// Loading from memory automatically zeroing upper bits. -let AddedComplexity = 20 in -def MOVZSS2PSrm : SSI<0x10, MRMSrcMem, (outs VR128:$dst), (ins f32mem:$src), - "movss\t{$src, $dst|$dst, $src}", - [(set VR128:$dst, (v4f32 (X86vzmovl (v4f32 (scalar_to_vector - (loadf32 addr:$src))))))]>; - -def : Pat<(v4f32 (X86vzmovl (loadv4f32 addr:$src))), - (MOVZSS2PSrm addr:$src)>; +def : Pat<(f32 (vector_extract (v4f32 VR128:$src), (iPTR 0))), + (f32 (EXTRACT_SUBREG (v4f32 VR128:$src), x86_subreg_ss))>; //===---------------------------------------------------------------------===// // SSE2 Instructions //===---------------------------------------------------------------------===// -// Move Instructions -let neverHasSideEffects = 1 in -def MOVSDrr : SDI<0x10, MRMSrcReg, (outs FR64:$dst), (ins FR64:$src), - "movsd\t{$src, $dst|$dst, $src}", []>; -let canFoldAsLoad = 1, isReMaterializable = 1 in +// Move Instructions. Register-to-register movsd is not used for FR64 +// register copies because it's a partial register update; FsMOVAPDrr is +// used instead. Register-to-register movsd is not modeled as an INSERT_SUBREG +// because INSERT_SUBREG requires that the insert be implementable in terms of +// a copy, and just mentioned, we don't use movsd for copies. +let Constraints = "$src1 = $dst" in +def MOVSDrr : SDI<0x10, MRMSrcReg, + (outs VR128:$dst), (ins VR128:$src1, FR64:$src2), + "movsd\t{$src2, $dst|$dst, $src2}", + [(set VR128:$dst, + (movl VR128:$src1, (scalar_to_vector FR64:$src2)))]>; + +// Extract the low 64-bit value from one vector and insert it into another. +let AddedComplexity = 15 in +def : Pat<(v2f64 (movl VR128:$src1, VR128:$src2)), + (MOVSDrr VR128:$src1, + (EXTRACT_SUBREG (v2f64 VR128:$src2), x86_subreg_sd))>; + +// Implicitly promote a 64-bit scalar to a vector. +def : Pat<(v2f64 (scalar_to_vector FR64:$src)), + (INSERT_SUBREG (v2f64 (IMPLICIT_DEF)), FR64:$src, x86_subreg_sd)>; + +// Loading from memory automatically zeroing upper bits. +let canFoldAsLoad = 1, isReMaterializable = 1, AddedComplexity = 20 in def MOVSDrm : SDI<0x10, MRMSrcMem, (outs FR64:$dst), (ins f64mem:$src), "movsd\t{$src, $dst|$dst, $src}", [(set FR64:$dst, (loadf64 addr:$src))]>; + +// MOVSDrm zeros the high parts of the register; represent this +// with SUBREG_TO_REG. +let AddedComplexity = 20 in { +def : Pat<(v2f64 (X86vzmovl (v2f64 (scalar_to_vector (loadf64 addr:$src))))), + (SUBREG_TO_REG (i64 0), (MOVSDrm addr:$src), x86_subreg_sd)>; +def : Pat<(v2f64 (scalar_to_vector (loadf64 addr:$src))), + (SUBREG_TO_REG (i64 0), (MOVSDrm addr:$src), x86_subreg_sd)>; +def : Pat<(v2f64 (X86vzmovl (loadv2f64 addr:$src))), + (SUBREG_TO_REG (i64 0), (MOVSDrm addr:$src), x86_subreg_sd)>; +def : Pat<(v2f64 (X86vzmovl (bc_v2f64 (loadv4f32 addr:$src)))), + (SUBREG_TO_REG (i64 0), (MOVSDrm addr:$src), x86_subreg_sd)>; +def : Pat<(v2f64 (X86vzload addr:$src)), + (SUBREG_TO_REG (i64 0), (MOVSDrm addr:$src), x86_subreg_sd)>; +} + +// Store scalar value to memory. def MOVSDmr : SDI<0x11, MRMDestMem, (outs), (ins f64mem:$dst, FR64:$src), "movsd\t{$src, $dst|$dst, $src}", [(store FR64:$src, addr:$dst)]>; +// Extract and store. +def : Pat<(store (f64 (vector_extract (v2f64 VR128:$src), (iPTR 0))), + addr:$dst), + (MOVSDmr addr:$dst, + (EXTRACT_SUBREG (v2f64 VR128:$src), x86_subreg_sd))>; + // Conversion instructions def CVTTSD2SIrr : SDI<0x2C, MRMSrcReg, (outs GR32:$dst), (ins FR64:$src), "cvttsd2si\t{$src, $dst|$dst, $src}", @@ -1213,7 +1242,8 @@ def CVTSS2SDrm : I<0x5A, MRMSrcMem, (outs FR64:$dst), (ins f32mem:$src), Requires<[HasSSE2, OptForSize]>; def : Pat<(extloadf32 addr:$src), - (CVTSS2SDrr (MOVSSrm addr:$src))>, Requires<[HasSSE2, OptForSpeed]>; + (CVTSS2SDrr (MOVSSrm addr:$src))>, + Requires<[HasSSE2, OptForSpeed]>; // Match intrinsics which expect XMM operand(s). def Int_CVTSD2SIrr : SDI<0x2D, MRMSrcReg, (outs GR32:$dst), (ins VR128:$src), @@ -2397,17 +2427,6 @@ let isReMaterializable = 1, isAsCheapAsAMove = 1, canFoldAsLoad = 1, def V_SETALLONES : PDI<0x76, MRMInitReg, (outs VR128:$dst), (ins), "", [(set VR128:$dst, (v4i32 immAllOnesV))]>; -// FR64 to 128-bit vector conversion. -let isAsCheapAsAMove = 1 in -def MOVSD2PDrr : SDI<0x10, MRMSrcReg, (outs VR128:$dst), (ins FR64:$src), - "movsd\t{$src, $dst|$dst, $src}", - [(set VR128:$dst, - (v2f64 (scalar_to_vector FR64:$src)))]>; -def MOVSD2PDrm : SDI<0x10, MRMSrcMem, (outs VR128:$dst), (ins f64mem:$src), - "movsd\t{$src, $dst|$dst, $src}", - [(set VR128:$dst, - (v2f64 (scalar_to_vector (loadf64 addr:$src))))]>; - def MOVDI2PDIrr : PDI<0x6E, MRMSrcReg, (outs VR128:$dst), (ins GR32:$src), "movd\t{$src, $dst|$dst, $src}", [(set VR128:$dst, @@ -2436,20 +2455,9 @@ def MOVPQI2QImr : PDI<0xD6, MRMDestMem, (outs), (ins i64mem:$dst, VR128:$src), [(store (i64 (vector_extract (v2i64 VR128:$src), (iPTR 0))), addr:$dst)]>; -// FIXME: may not be able to eliminate this movss with coalescing the src and -// dest register classes are different. We really want to write this pattern -// like this: -// def : Pat<(f32 (vector_extract (v4f32 VR128:$src), (iPTR 0))), -// (f32 FR32:$src)>; -let isAsCheapAsAMove = 1 in -def MOVPD2SDrr : SDI<0x10, MRMSrcReg, (outs FR64:$dst), (ins VR128:$src), - "movsd\t{$src, $dst|$dst, $src}", - [(set FR64:$dst, (vector_extract (v2f64 VR128:$src), - (iPTR 0)))]>; -def MOVPD2SDmr : SDI<0x11, MRMDestMem, (outs), (ins f64mem:$dst, VR128:$src), - "movsd\t{$src, $dst|$dst, $src}", - [(store (f64 (vector_extract (v2f64 VR128:$src), - (iPTR 0))), addr:$dst)]>; +def : Pat<(f64 (vector_extract (v2f64 VR128:$src), (iPTR 0))), + (f64 (EXTRACT_SUBREG (v2f64 VR128:$src), x86_subreg_sd))>; + def MOVPDI2DIrr : PDI<0x7E, MRMDestReg, (outs GR32:$dst), (ins VR128:$src), "movd\t{$src, $dst|$dst, $src}", [(set GR32:$dst, (vector_extract (v4i32 VR128:$src), @@ -2466,44 +2474,11 @@ def MOVSS2DImr : PDI<0x7E, MRMDestMem, (outs), (ins i32mem:$dst, FR32:$src), "movd\t{$src, $dst|$dst, $src}", [(store (i32 (bitconvert FR32:$src)), addr:$dst)]>; - -// Move to lower bits of a VR128, leaving upper bits alone. -// Three operand (but two address) aliases. -let Constraints = "$src1 = $dst" in { - let neverHasSideEffects = 1 in - def MOVLSD2PDrr : SDI<0x10, MRMSrcReg, - (outs VR128:$dst), (ins VR128:$src1, FR64:$src2), - "movsd\t{$src2, $dst|$dst, $src2}", []>; - - let AddedComplexity = 15 in - def MOVLPDrr : SDI<0x10, MRMSrcReg, - (outs VR128:$dst), (ins VR128:$src1, VR128:$src2), - "movsd\t{$src2, $dst|$dst, $src2}", - [(set VR128:$dst, - (v2f64 (movl VR128:$src1, VR128:$src2)))]>; -} - // Store / copy lower 64-bits of a XMM register. def MOVLQ128mr : PDI<0xD6, MRMDestMem, (outs), (ins i64mem:$dst, VR128:$src), "movq\t{$src, $dst|$dst, $src}", [(int_x86_sse2_storel_dq addr:$dst, VR128:$src)]>; -// Move to lower bits of a VR128 and zeroing upper bits. -// Loading from memory automatically zeroing upper bits. -let AddedComplexity = 20 in { -def MOVZSD2PDrm : SDI<0x10, MRMSrcMem, (outs VR128:$dst), (ins f64mem:$src), - "movsd\t{$src, $dst|$dst, $src}", - [(set VR128:$dst, - (v2f64 (X86vzmovl (v2f64 (scalar_to_vector - (loadf64 addr:$src))))))]>; - -def : Pat<(v2f64 (X86vzmovl (loadv2f64 addr:$src))), - (MOVZSD2PDrm addr:$src)>; -def : Pat<(v2f64 (X86vzmovl (bc_v2f64 (loadv4f32 addr:$src)))), - (MOVZSD2PDrm addr:$src)>; -def : Pat<(v2f64 (X86vzload addr:$src)), (MOVZSD2PDrm addr:$src)>; -} - // movd / movq to XMM register zero-extends let AddedComplexity = 15 in { def MOVZDI2PDIrr : PDI<0x6E, MRMSrcReg, (outs VR128:$dst), (ins GR32:$src), @@ -3049,13 +3024,15 @@ let Predicates = [HasSSE2] in { let AddedComplexity = 15 in { // Zeroing a VR128 then do a MOVS{S|D} to the lower bits. def : Pat<(v2f64 (X86vzmovl (v2f64 (scalar_to_vector FR64:$src)))), - (MOVLSD2PDrr (V_SET0), FR64:$src)>; + (MOVSDrr (v2f64 (V_SET0)), FR64:$src)>; def : Pat<(v4f32 (X86vzmovl (v4f32 (scalar_to_vector FR32:$src)))), - (MOVLSS2PSrr (V_SET0), FR32:$src)>; + (MOVSSrr (v4f32 (V_SET0)), FR32:$src)>; def : Pat<(v4f32 (X86vzmovl (v4f32 VR128:$src))), - (MOVLPSrr (V_SET0), VR128:$src)>; + (MOVSSrr (v4f32 (V_SET0)), + (f32 (EXTRACT_SUBREG (v4f32 VR128:$src), x86_subreg_ss)))>; def : Pat<(v4i32 (X86vzmovl (v4i32 VR128:$src))), - (MOVLPSrr (V_SET0), VR128:$src)>; + (MOVSSrr (v4i32 (V_SET0)), + (EXTRACT_SUBREG (v4i32 VR128:$src), x86_subreg_ss))>; } // Splat v2f64 / v2i64 @@ -3190,15 +3167,19 @@ def : Pat<(store (v2i64 (movlp (load addr:$src1), VR128:$src2)), addr:$src1), let AddedComplexity = 15 in { // Setting the lowest element in the vector. def : Pat<(v4i32 (movl VR128:$src1, VR128:$src2)), - (MOVLPSrr VR128:$src1, VR128:$src2)>, Requires<[HasSSE2]>; + (MOVSSrr (v4i32 VR128:$src1), + (EXTRACT_SUBREG (v4i32 VR128:$src2), x86_subreg_ss))>; def : Pat<(v2i64 (movl VR128:$src1, VR128:$src2)), - (MOVLPDrr VR128:$src1, VR128:$src2)>, Requires<[HasSSE2]>; + (MOVSDrr (v2i64 VR128:$src1), + (EXTRACT_SUBREG (v2i64 VR128:$src2), x86_subreg_sd))>; -// vector_shuffle v1, v2 <4, 5, 2, 3> using MOVLPDrr (movsd) +// vector_shuffle v1, v2 <4, 5, 2, 3> using movsd def : Pat<(v4f32 (movlp VR128:$src1, VR128:$src2)), - (MOVLPDrr VR128:$src1, VR128:$src2)>, Requires<[HasSSE2]>; + (MOVSDrr VR128:$src1, (EXTRACT_SUBREG VR128:$src2, x86_subreg_sd))>, + Requires<[HasSSE2]>; def : Pat<(v4i32 (movlp VR128:$src1, VR128:$src2)), - (MOVLPDrr VR128:$src1, VR128:$src2)>, Requires<[HasSSE2]>; + (MOVSDrr VR128:$src1, (EXTRACT_SUBREG VR128:$src2, x86_subreg_sd))>, + Requires<[HasSSE2]>; } // vector_shuffle v1, v2 <4, 5, 2, 3> using SHUFPSrri (we prefer movsd, but diff --git a/lib/Target/X86/X86RegisterInfo.cpp b/lib/Target/X86/X86RegisterInfo.cpp index 45ff2975086..946d6b23c6b 100644 --- a/lib/Target/X86/X86RegisterInfo.cpp +++ b/lib/Target/X86/X86RegisterInfo.cpp @@ -191,6 +191,8 @@ X86RegisterInfo::getMatchingSuperRegClass(const TargetRegisterClass *A, return &X86::GR16_NOREXRegClass; else if (A == &X86::GR16_ABCDRegClass) return &X86::GR16_ABCDRegClass; + } else if (B == &X86::FR32RegClass) { + return A; } break; case 2: @@ -207,6 +209,8 @@ X86RegisterInfo::getMatchingSuperRegClass(const TargetRegisterClass *A, else if (A == &X86::GR16RegClass || A == &X86::GR16_ABCDRegClass || A == &X86::GR16_NOREXRegClass) return &X86::GR16_ABCDRegClass; + } else if (B == &X86::FR64RegClass) { + return A; } break; case 3: @@ -234,6 +238,8 @@ X86RegisterInfo::getMatchingSuperRegClass(const TargetRegisterClass *A, return &X86::GR32_NOREXRegClass; else if (A == &X86::GR32_ABCDRegClass) return &X86::GR64_ABCDRegClass; + } else if (B == &X86::VR128RegClass) { + return A; } break; case 4: diff --git a/lib/Target/X86/X86RegisterInfo.h b/lib/Target/X86/X86RegisterInfo.h index 8fb5e9258be..e4bdb4e4c21 100644 --- a/lib/Target/X86/X86RegisterInfo.h +++ b/lib/Target/X86/X86RegisterInfo.h @@ -35,7 +35,8 @@ namespace X86 { /// these indices must be kept in sync with the class indices in the /// X86RegisterInfo.td file. enum SubregIndex { - SUBREG_8BIT = 1, SUBREG_8BIT_HI = 2, SUBREG_16BIT = 3, SUBREG_32BIT = 4 + SUBREG_8BIT = 1, SUBREG_8BIT_HI = 2, SUBREG_16BIT = 3, SUBREG_32BIT = 4, + SUBREG_SS = 1, SUBREG_SD = 2, SUBREG_XMM = 3 }; } diff --git a/lib/Target/X86/X86RegisterInfo.td b/lib/Target/X86/X86RegisterInfo.td index 1559bf7ce10..ed2ce6c353d 100644 --- a/lib/Target/X86/X86RegisterInfo.td +++ b/lib/Target/X86/X86RegisterInfo.td @@ -158,22 +158,22 @@ let Namespace = "X86" in { def XMM15: Register<"xmm15">, DwarfRegNum<[32, -2, -2]>; // YMM Registers, used by AVX instructions - def YMM0: Register<"ymm0">, DwarfRegNum<[17, 21, 21]>; - def YMM1: Register<"ymm1">, DwarfRegNum<[18, 22, 22]>; - def YMM2: Register<"ymm2">, DwarfRegNum<[19, 23, 23]>; - def YMM3: Register<"ymm3">, DwarfRegNum<[20, 24, 24]>; - def YMM4: Register<"ymm4">, DwarfRegNum<[21, 25, 25]>; - def YMM5: Register<"ymm5">, DwarfRegNum<[22, 26, 26]>; - def YMM6: Register<"ymm6">, DwarfRegNum<[23, 27, 27]>; - def YMM7: Register<"ymm7">, DwarfRegNum<[24, 28, 28]>; - def YMM8: Register<"ymm8">, DwarfRegNum<[25, -2, -2]>; - def YMM9: Register<"ymm9">, DwarfRegNum<[26, -2, -2]>; - def YMM10: Register<"ymm10">, DwarfRegNum<[27, -2, -2]>; - def YMM11: Register<"ymm11">, DwarfRegNum<[28, -2, -2]>; - def YMM12: Register<"ymm12">, DwarfRegNum<[29, -2, -2]>; - def YMM13: Register<"ymm13">, DwarfRegNum<[30, -2, -2]>; - def YMM14: Register<"ymm14">, DwarfRegNum<[31, -2, -2]>; - def YMM15: Register<"ymm15">, DwarfRegNum<[32, -2, -2]>; + def YMM0: RegisterWithSubRegs<"ymm0", [XMM0]>, DwarfRegNum<[17, 21, 21]>; + def YMM1: RegisterWithSubRegs<"ymm1", [XMM1]>, DwarfRegNum<[18, 22, 22]>; + def YMM2: RegisterWithSubRegs<"ymm2", [XMM2]>, DwarfRegNum<[19, 23, 23]>; + def YMM3: RegisterWithSubRegs<"ymm3", [XMM3]>, DwarfRegNum<[20, 24, 24]>; + def YMM4: RegisterWithSubRegs<"ymm4", [XMM4]>, DwarfRegNum<[21, 25, 25]>; + def YMM5: RegisterWithSubRegs<"ymm5", [XMM5]>, DwarfRegNum<[22, 26, 26]>; + def YMM6: RegisterWithSubRegs<"ymm6", [XMM6]>, DwarfRegNum<[23, 27, 27]>; + def YMM7: RegisterWithSubRegs<"ymm7", [XMM7]>, DwarfRegNum<[24, 28, 28]>; + def YMM8: RegisterWithSubRegs<"ymm8", [XMM8]>, DwarfRegNum<[25, -2, -2]>; + def YMM9: RegisterWithSubRegs<"ymm9", [XMM9]>, DwarfRegNum<[26, -2, -2]>; + def YMM10: RegisterWithSubRegs<"ymm10", [XMM10]>, DwarfRegNum<[27, -2, -2]>; + def YMM11: RegisterWithSubRegs<"ymm11", [XMM11]>, DwarfRegNum<[28, -2, -2]>; + def YMM12: RegisterWithSubRegs<"ymm12", [XMM12]>, DwarfRegNum<[29, -2, -2]>; + def YMM13: RegisterWithSubRegs<"ymm13", [XMM13]>, DwarfRegNum<[30, -2, -2]>; + def YMM14: RegisterWithSubRegs<"ymm14", [XMM14]>, DwarfRegNum<[31, -2, -2]>; + def YMM15: RegisterWithSubRegs<"ymm15", [XMM15]>, DwarfRegNum<[32, -2, -2]>; // Floating point stack registers def ST0 : Register<"st(0)">, DwarfRegNum<[33, 12, 11]>; @@ -238,6 +238,10 @@ def x86_subreg_8bit_hi : PatLeaf<(i32 2)>; def x86_subreg_16bit : PatLeaf<(i32 3)>; def x86_subreg_32bit : PatLeaf<(i32 4)>; +def x86_subreg_ss : PatLeaf<(i32 1)>; +def x86_subreg_sd : PatLeaf<(i32 2)>; +def x86_subreg_xmm : PatLeaf<(i32 3)>; + def : SubRegSet<1, [AX, CX, DX, BX, SP, BP, SI, DI, R8W, R9W, R10W, R11W, R12W, R13W, R14W, R15W], [AL, CL, DL, BL, SPL, BPL, SIL, DIL, @@ -277,11 +281,31 @@ def : SubRegSet<4, [RAX, RCX, RDX, RBX, RSP, RBP, RSI, RDI, [EAX, ECX, EDX, EBX, ESP, EBP, ESI, EDI, R8D, R9D, R10D, R11D, R12D, R13D, R14D, R15D]>; -def : SubRegSet<1, [YMM0, YMM1, YMM2, YMM3, YMM4, YMM5, YMM6, YMM7, +def : SubRegSet<1, [YMM0, YMM1, YMM2, YMM3, YMM4, YMM5, YMM6, YMM7, + YMM8, YMM9, YMM10, YMM11, YMM12, YMM13, YMM14, YMM15], + [XMM0, XMM1, XMM2, XMM3, XMM4, XMM5, XMM6, XMM7, + XMM8, XMM9, XMM10, XMM11, XMM12, XMM13, XMM14, XMM15]>; + +def : SubRegSet<2, [YMM0, YMM1, YMM2, YMM3, YMM4, YMM5, YMM6, YMM7, + YMM8, YMM9, YMM10, YMM11, YMM12, YMM13, YMM14, YMM15], + [XMM0, XMM1, XMM2, XMM3, XMM4, XMM5, XMM6, XMM7, + XMM8, XMM9, XMM10, XMM11, XMM12, XMM13, XMM14, XMM15]>; + +def : SubRegSet<3, [YMM0, YMM1, YMM2, YMM3, YMM4, YMM5, YMM6, YMM7, YMM8, YMM9, YMM10, YMM11, YMM12, YMM13, YMM14, YMM15], [XMM0, XMM1, XMM2, XMM3, XMM4, XMM5, XMM6, XMM7, XMM8, XMM9, XMM10, XMM11, XMM12, XMM13, XMM14, XMM15]>; +def : SubRegSet<1, [XMM0, XMM1, XMM2, XMM3, XMM4, XMM5, XMM6, XMM7, + XMM8, XMM9, XMM10, XMM11, XMM12, XMM13, XMM14, XMM15], + [XMM0, XMM1, XMM2, XMM3, XMM4, XMM5, XMM6, XMM7, + XMM8, XMM9, XMM10, XMM11, XMM12, XMM13, XMM14, XMM15]>; + +def : SubRegSet<2, [XMM0, XMM1, XMM2, XMM3, XMM4, XMM5, XMM6, XMM7, + XMM8, XMM9, XMM10, XMM11, XMM12, XMM13, XMM14, XMM15], + [XMM0, XMM1, XMM2, XMM3, XMM4, XMM5, XMM6, XMM7, + XMM8, XMM9, XMM10, XMM11, XMM12, XMM13, XMM14, XMM15]>; + //===----------------------------------------------------------------------===// // Register Class Definitions... now that we have all of the pieces, define the // top-level register classes. The order specified in the register list is @@ -793,6 +817,7 @@ def VR128 : RegisterClass<"X86", [v16i8, v8i16, v4i32, v2i64, v4f32, v2f64],128, [XMM0, XMM1, XMM2, XMM3, XMM4, XMM5, XMM6, XMM7, XMM8, XMM9, XMM10, XMM11, XMM12, XMM13, XMM14, XMM15]> { + let SubRegClassList = [FR32, FR64]; let MethodProtos = [{ iterator allocation_order_end(const MachineFunction &MF) const; }]; @@ -811,7 +836,9 @@ def VR128 : RegisterClass<"X86", [v16i8, v8i16, v4i32, v2i64, v4f32, v2f64],128, def VR256 : RegisterClass<"X86", [ v8i32, v4i64, v8f32, v4f64],256, [YMM0, YMM1, YMM2, YMM3, YMM4, YMM5, YMM6, YMM7, YMM8, YMM9, YMM10, YMM11, - YMM12, YMM13, YMM14, YMM15]>; + YMM12, YMM13, YMM14, YMM15]> { + let SubRegClassList = [FR32, FR64, VR128]; +} // Status flags registers. def CCR : RegisterClass<"X86", [i32], 32, [EFLAGS]> { -- 2.34.1