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Add a 256-bit register class and YMM registers. 

llvm-svn: 74469
This commit is contained in:
David Greene 2009-06-29 22:50:51 +00:00
parent 76b37950ca
commit 8adf1fdc80
2 changed files with 32 additions and 0 deletions
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5
llvm/lib/Target/X86/X86ISelLowering.cpp
View File

@ -785,6 +785,11 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM)
}
if (!UseSoftFloat && Subtarget->hasAVX()) {
addRegisterClass(MVT::v8f32, X86::VR256RegisterClass);
addRegisterClass(MVT::v4f64, X86::VR256RegisterClass);
addRegisterClass(MVT::v8i32, X86::VR256RegisterClass);
addRegisterClass(MVT::v4i64, X86::VR256RegisterClass);
setOperationAction(ISD::LOAD, MVT::v8f32, Legal);
setOperationAction(ISD::LOAD, MVT::v8i32, Legal);
setOperationAction(ISD::LOAD, MVT::v4f64, Legal);

27
llvm/lib/Target/X86/X86RegisterInfo.td
View File

@ -157,6 +157,24 @@ let Namespace = "X86" in {
def XMM14: Register<"xmm14">, DwarfRegNum<[31, -2, -2]>;
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]>;
// Floating point stack registers
def ST0 : Register<"st(0)">, DwarfRegNum<[33, 12, 11]>;
def ST1 : Register<"st(1)">, DwarfRegNum<[34, 13, 12]>;
@ -229,6 +247,11 @@ 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,
YMM8, YMM9, YMM10, YMM11, YMM12, YMM13, YMM14, YMM15],
[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
@ -755,6 +778,10 @@ 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]>;
// Status flags registers.
def CCR : RegisterClass<"X86", [i32], 32, [EFLAGS]> {