a110e991c6
See https://discourse.llvm.org/t/rfc-make-globalisel-match-table-entries-1-byte-instead-of-8/75411 This helps reduce llc's binary size, at the cost of some added complexity to the MatchTable machinery.
27 lines
1.3 KiB
TableGen
27 lines
1.3 KiB
TableGen
// RUN: llvm-tblgen %s -gen-global-isel -optimize-match-table=true -I %p/../../include -I %p/Common -o - | FileCheck %s
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include "llvm/Target/Target.td"
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include "GlobalISelEmitterCommon.td"
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def InstTwoOperands : I<(outs GPR32:$dst), (ins GPR32:$src1, GPR32:$src2), []>;
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def InstThreeOperands : I<(outs GPR32:$dst), (ins GPR32:$cond, GPR32:$src,GPR32:$src2), []>;
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// Make sure the GIM_CheckIsSameOperand check is not hoisted into the common header group
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// CHECK: GIM_Try, /*On fail goto*//*Label 1*/
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// CHECK-NEXT: GIM_CheckRegBankForClass, /*MI*/0, /*Op*/0, /*RC*/GIMT_Encode2(MyTarget::GPR32RegClassID),
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// CHECK-NOT: GIM_CheckIsSameOperand
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// CHECK-NEXT: GIM_Try, /*On fail goto*//*Label 2*/
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// CHECK: GIM_CheckIsSameOperand, /*MI*/0, /*OpIdx*/3, /*OtherMI*/2, /*OtherOpIdx*/1,
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// CHECK: // Label 2
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// CHECK-NEXT: GIM_Try, /*On fail goto*//*Label 3*/
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// CHECK: GIM_CheckIsSameOperand, /*MI*/0, /*OpIdx*/3, /*OtherMI*/2, /*OtherOpIdx*/2,
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// CHECK: // Label 1
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def : Pat<(i32 (select GPR32:$cond, GPR32:$src1, GPR32:$src2)),
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(InstThreeOperands GPR32:$cond, GPR32:$src1, GPR32:$src2)>;
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def : Pat<(i32 (select (i32 (setcc GPR32:$cond, (i32 0), (OtherVT SETEQ))),
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(i32 (add GPR32:$src1, GPR32:$const)),
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GPR32:$src1)),
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(InstThreeOperands GPR32:$cond, GPR32:$src1, GPR32:$const)>;
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