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Recommit "[GlobalISel] Introduce a generic floating point floor opcode, G_FFLOOR"" 

After r353586, we won't fail on the AMDGPU floor pattern that was killing the
importer before.

llvm-svn: 353589
This commit is contained in:
Jessica Paquette 2019-02-09 00:37:31 +00:00
parent 1607a37308
commit c230c13d4b
4 changed files with 15 additions and 1 deletions
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3
llvm/include/llvm/Support/TargetOpcodes.def
View File

@ -530,6 +530,9 @@ HANDLE_TARGET_OPCODE(G_FSIN)
/// Floating point square root.
HANDLE_TARGET_OPCODE(G_FSQRT)
/// Floating point floor.
HANDLE_TARGET_OPCODE(G_FFLOOR)
/// Generic AddressSpaceCast.
HANDLE_TARGET_OPCODE(G_ADDRSPACE_CAST)

7
llvm/include/llvm/Target/GenericOpcodes.td
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@ -579,6 +579,13 @@ def G_FSQRT : GenericInstruction {
let hasSideEffects = 0;
}
// Floating point floor of a value.
def G_FFLOOR : GenericInstruction {
let OutOperandList = (outs type0:$dst);
let InOperandList = (ins type0:$src1);
let hasSideEffects = 0;
}
//------------------------------------------------------------------------------
// Opcodes for LLVM Intrinsics
//------------------------------------------------------------------------------

1
llvm/include/llvm/Target/GlobalISel/SelectionDAGCompat.td
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@ -93,6 +93,7 @@ def : GINodeEquiv<G_FCOS, fcos>;
def : GINodeEquiv<G_FSIN, fsin>;
def : GINodeEquiv<G_FABS, fabs>;
def : GINodeEquiv<G_FSQRT, fsqrt>;
def : GINodeEquiv<G_FFLOOR, ffloor>;
// Broadly speaking G_LOAD is equivalent to ISD::LOAD but there are some
// complications that tablegen must take care of. For example, Predicates such

5
llvm/test/CodeGen/AArch64/GlobalISel/legalizer-info-validation.mir
View File

@ -340,7 +340,10 @@
# DEBUG: .. the first uncovered type index: 1, OK
#
# DEBUG-NEXT: G_FSQRT (opcode {{[0-9]+}}): 1 type index
# DEBUG: .. the first uncovered type index: 1, OK
# DEBUG: .. type index coverage check SKIPPED: user-defined predicate detected
#
# DEBUG-NEXT: G_FFLOOR (opcode {{[0-9]+}}): 1 type index
# DEBUG: .. type index coverage check SKIPPED: no rules defined
# CHECK-NOT: ill-defined