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One more round of reorg so sabre doesn't freak out. :-)

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26303 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2006-02-21 20:00:20 +00:00
parent beb07e117d
commit 4e4c71e423
4 changed files with 409 additions and 391 deletions
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39
lib/Target/X86/X86InstrFPStack.td
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@@ -13,6 +13,26 @@
//
//===----------------------------------------------------------------------===//
// Some 'special' instructions
let usesCustomDAGSchedInserter = 1 in { // Expanded by the scheduler.
def FP_TO_INT16_IN_MEM : I<0, Pseudo,
(ops i16mem:$dst, RFP:$src),
"#FP_TO_INT16_IN_MEM PSEUDO!",
[(X86fp_to_i16mem RFP:$src, addr:$dst)]>;
def FP_TO_INT32_IN_MEM : I<0, Pseudo,
(ops i32mem:$dst, RFP:$src),
"#FP_TO_INT32_IN_MEM PSEUDO!",
[(X86fp_to_i32mem RFP:$src, addr:$dst)]>;
def FP_TO_INT64_IN_MEM : I<0, Pseudo,
(ops i64mem:$dst, RFP:$src),
"#FP_TO_INT64_IN_MEM PSEUDO!",
[(X86fp_to_i64mem RFP:$src, addr:$dst)]>;
}
let isTerminator = 1 in
let Defs = [FP0, FP1, FP2, FP3, FP4, FP5, FP6] in
def FP_REG_KILL : I<0, Pseudo, (ops), "#FP_REG_KILL", []>;
// All FP Stack operations are represented with two instructions here. The
// first instruction, generated by the instruction selector, uses "RFP"
// registers: a traditional register file to reference floating point values.
@@ -379,3 +399,22 @@ def FNSTCW16m : I<0xD9, MRM7m, // [mem16] = X87 control world
(ops i16mem:$dst), "fnstcw $dst", []>;
def FLDCW16m : I<0xD9, MRM5m, // X87 control world = [mem16]
(ops i16mem:$dst), "fldcw $dst", []>;
//===----------------------------------------------------------------------===//
// Non-Instruction Patterns
//===----------------------------------------------------------------------===//
// Required for RET of f32 / f64 values.
def : Pat<(X86fld addr:$src, f32), (FpLD32m addr:$src)>;
def : Pat<(X86fld addr:$src, f64), (FpLD64m addr:$src)>;
// Required for CALL which return f32 / f64 values.
def : Pat<(X86fst RFP:$src, addr:$op, f32), (FpST32m addr:$op, RFP:$src)>;
def : Pat<(X86fst RFP:$src, addr:$op, f64), (FpST64m addr:$op, RFP:$src)>;
// Floating point constant -0.0 and -1.0
def : Pat<(f64 fp64immneg0), (FpCHS (FpLD0))>, Requires<[FPStack]>;
def : Pat<(f64 fp64immneg1), (FpCHS (FpLD1))>, Requires<[FPStack]>;
// Used to conv. i64 to f64 since there isn't a SSE version.
def : Pat<(X86fildflag addr:$src, i64), (FpILD64m addr:$src)>;