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Implement codegen for flt_rounds on x86

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44183 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Anton Korobeynikov
2007-11-16 01:31:51 +00:00
parent 917c2a6ff2
commit 45b22fa9f1
3 changed files with 75 additions and 3 deletions
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7
lib/Target/X86/X86InstrFPStack.td
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@@ -29,6 +29,8 @@ def SDTX86Fild : SDTypeProfile<1, 2, [SDTCisFP<0>, SDTCisPtrTy<1>,
SDTCisVT<2, OtherVT>]>;
def SDTX86FpToIMem : SDTypeProfile<0, 2, [SDTCisFP<0>, SDTCisPtrTy<1>]>;
def SDTX86CwdStore : SDTypeProfile<0, 1, [SDTCisPtrTy<0>]>;
def X86fpget : SDNode<"X86ISD::FP_GET_RESULT", SDTX86FpGet,
[SDNPHasChain, SDNPInFlag, SDNPOutFlag]>;
def X86fpset : SDNode<"X86ISD::FP_SET_RESULT", SDTX86FpSet,
@@ -47,6 +49,8 @@ def X86fp_to_i32mem : SDNode<"X86ISD::FP_TO_INT32_IN_MEM", SDTX86FpToIMem,
[SDNPHasChain]>;
def X86fp_to_i64mem : SDNode<"X86ISD::FP_TO_INT64_IN_MEM", SDTX86FpToIMem,
[SDNPHasChain]>;
def X86fp_cwd_get16 : SDNode<"X86ISD::FNSTCW16m", SDTX86CwdStore,
[SDNPHasChain]>;
//===----------------------------------------------------------------------===//
// FPStack pattern fragments
@@ -524,7 +528,8 @@ def FNSTSW8r : I<0xE0, RawFrm, // AX = fp flags
(outs), (ins), "fnstsw", []>, DF;
def FNSTCW16m : I<0xD9, MRM7m, // [mem16] = X87 control world
(outs), (ins i16mem:$dst), "fnstcw\t$dst", []>;
(outs), (ins i16mem:$dst), "fnstcw\t$dst",
[(X86fp_cwd_get16 addr:$dst)]>;
def FLDCW16m : I<0xD9, MRM5m, // X87 control world = [mem16]
(outs), (ins i16mem:$dst), "fldcw\t$dst", []>;