derek.holloway
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111 lines
2.4 KiB
TableGen
111 lines
2.4 KiB
TableGen
// RUN: llvm-tblgen -gen-emitter -I %p/../../include %s | FileCheck %s
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// Verify VarLenCodeEmitterGen using EncodingInfos with different HwModes.
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include "llvm/Target/Target.td"
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def ArchInstrInfo : InstrInfo { }
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def Arch : Target {
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let InstructionSet = ArchInstrInfo;
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}
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def Reg : Register<"reg">;
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def RegClass : RegisterClass<"foo", [i64], 0, (add Reg)>;
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def GR64 : RegisterOperand<RegClass>;
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def HasA : Predicate<"Subtarget->hasA()">;
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def HasB : Predicate<"Subtarget->hasB()">;
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def ModeA : HwMode<[HasA]>;
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def ModeB : HwMode<[HasB]>;
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def fooTypeEncA : InstructionEncoding {
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dag Inst = (descend
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(operand "$src", 4),
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(operand "$dst", 4),
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0b00000001
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);
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}
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def fooTypeEncB : InstructionEncoding {
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dag Inst = (descend
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(operand "$dst", 4),
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(operand "$src", 4),
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0b00000010
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);
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}
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def fooTypeEncC : InstructionEncoding {
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dag Inst = (descend
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(operand "$dst", 4),
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(operand "$src", 4),
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0b00000100
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);
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}
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class VarLenInst : Instruction {
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let AsmString = "foo $src, $dst";
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let OutOperandList = (outs GR64:$dst);
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let InOperandList = (ins GR64:$src);
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}
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// Defined in both HwModes
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def foo : VarLenInst {
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let EncodingInfos = EncodingByHwMode<
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[ModeA, ModeB],
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[fooTypeEncA, fooTypeEncB]
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>;
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}
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// Same encoding in any HwMode
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def bar : VarLenInst {
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dag Inst = (descend
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(operand "$dst", 4),
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(operand "$src", 4),
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0b00000011
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);
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}
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// Only defined in HwMode B.
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def baz : VarLenInst {
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let EncodingInfos = EncodingByHwMode<
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[ModeB],
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[fooTypeEncC]
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>;
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}
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// CHECK: static const uint64_t InstBits_ModeA[] = {
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// CHECK: UINT64_C(3), // bar
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// CHECK: UINT64_C(1), // foo
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// CHECK: static const uint64_t InstBits_ModeB[] = {
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// CHECK: UINT64_C(3), // bar
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// CHECK: UINT64_C(4), // baz
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// CHECK: UINT64_C(2), // foo
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// CHECK: auto getInstBits_ModeA =
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// CHECK: Idx = Index_ModeA
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// CHECK: auto getInstBits_ModeB =
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// CHECK: Idx = Index_ModeB
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// CHECK: case ::bar: {
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// CHECK-NOT: switch (Mode) {
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// CHECK: Inst = getInstBits_ModeA
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// CHECK: case ::foo: {
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// CHECK: switch (Mode) {
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// CHECK: case 1: {
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// CHECK: Inst = getInstBits_ModeA
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// CHECK: case 2: {
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// CHECK: Inst = getInstBits_ModeB
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// CHECK: case ::baz: {
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// CHECK: case 1: {
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// CHECK: llvm_unreachable("Undefined encoding in this mode");
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// CHECK: case 2: {
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// CHECK: Inst = getInstBits_ModeB
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