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Handle bitconverts

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76042 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Anton Korobeynikov 2009-07-16 14:27:01 +00:00
parent b6831cb044
commit 05a0b8bc66
3 changed files with 16 additions and 4 deletions
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4
lib/Target/SystemZ/SystemZISelLowering.cpp
View File

@ -129,6 +129,10 @@ SystemZTargetLowering::SystemZTargetLowering(SystemZTargetMachine &tm) :
setOperationAction(ISD::FCOS, MVT::f32, Expand);
setOperationAction(ISD::FCOS, MVT::f64, Expand);
// We have only 64-bit bitconverts
setOperationAction(ISD::BIT_CONVERT, MVT::f32, Promote);
setOperationAction(ISD::BIT_CONVERT, MVT::i32, Promote);
setOperationAction(ISD::UINT_TO_FP, MVT::i32, Expand);
setOperationAction(ISD::UINT_TO_FP, MVT::i64, Expand);
setOperationAction(ISD::FP_TO_UINT, MVT::i32, Expand);

7
lib/Target/SystemZ/SystemZInstrFP.td
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@ -295,6 +295,13 @@ def FCONVGR64 : Pseudo<(outs GR64:$dst), (ins FP64:$src),
(implicit PSW)]>;
} // Defs = [PSW]
def FBCONVG64 : Pseudo<(outs GR64:$dst), (ins FP64:$src),
"lgdr\t{$dst, $src}",
[(set GR64:$dst, (bitconvert FP64:$src))]>;
def FBCONVF64 : Pseudo<(outs FP64:$dst), (ins GR64:$src),
"ldgr\t{$dst, $src}",
[(set FP64:$dst, (bitconvert GR64:$src))]>;
//===----------------------------------------------------------------------===//
// Test instructions (like AND but do not produce any result)

9
lib/Target/SystemZ/SystemZInstrInfo.td
View File

@ -785,7 +785,11 @@ def : Pat<(SystemZcall (i64 texternalsym:$dst)), (CALLi texternalsym:$dst)>;
// FIXME: use add/sub tricks with 32678/-32768
// Arbitrary immediate support. Implement in terms of LLIHF/OILF.
// Arbitrary immediate support.
def : Pat<(i32 imm:$src),
(EXTRACT_SUBREG (MOV64ri32 (i64 imm:$src)), subreg_32bit)>;
// Implement in terms of LLIHF/OILF.
def : Pat<(i64 imm:$imm),
(OR64rilo32 (MOV64rihi32 (HI32 imm:$imm)), (LO32 imm:$imm))>;
@ -821,6 +825,3 @@ def : Pat<(mulhu GR64:$src1, GR64:$src2),
GR64:$src1, subreg_odd),
GR64:$src2),
subreg_even)>;
def : Pat<(i32 imm:$src),
(EXTRACT_SUBREG (MOV64ri32 (i64 imm:$src)), subreg_32bit)>;