Files
RedBear-OS/local/recipes/dev/libclc/source/llvm/test/TableGen/trydecode-emission.td
T
vasilito cb424d7448 build: static patch-sanity linter (shift-left the malformed-patch class)
verify-patch-sanity.py validates every active recipe .patch has internally-
consistent hunk line counts — catching the 'malformed patch at line N' failure
at commit/CI/preflight time instead of hours into a cook. This cycle hit that
class three times (qtwaylandscanner, sddm, xwayland), each only discovered when
cookbook tried to apply the patch.

Running it across the repo found 29 latent malformed patches (validated against
GNU patch: e.g. relibc/P3-sysv-ipc reproduces 'malformed patch at line 22').
They were harmless only because they sit in vendored recipes (baked, not re-
applied) — but would fail on any version-bump re-derivation. --fix recounts the
hunk headers (body untouched) and repaired all 29.

Wired into build-preflight.sh (Phase 1.0D) and redbear-ci.yml, with a unit test
(test-patch-sanity.sh). Skips archived/legacy trees and unvalidatable formats
(empty placeholders, bare-@@ git hunks).
2026-08-01 05:13:02 +03:00

63 lines
2.6 KiB
TableGen

// RUN: llvm-tblgen -gen-disassembler -I %p/../../include %s | FileCheck %s
// RUN: llvm-tblgen -gen-disassembler --large-decoder-table -I %p/../../include %s | FileCheck %s --check-prefix=CHECK-LARGE
// Check that if decoding of an instruction fails and the instruction does not
// have a complete decoder method that can determine if the bitpattern is valid
// or not then the decoder tries to find a more general instruction that
// matches the bitpattern too.
include "llvm/Target/Target.td"
def archInstrInfo : InstrInfo { }
def arch : Target {
let InstructionSet = archInstrInfo;
}
class TestInstruction : Instruction {
let Size = 1;
let OutOperandList = (outs);
let InOperandList = (ins);
field bits<8> Inst;
field bits<8> SoftFail = 0;
}
def InstA : TestInstruction {
let Inst = {0,0,0,0,?,?,?,?};
let AsmString = "InstA";
}
def InstB : TestInstruction {
let Inst = {0,0,0,0,0,0,?,?};
let AsmString = "InstB";
let DecoderMethod = "DecodeInstB";
let hasCompleteDecoder = 0;
}
// CHECK: /* 0 */ MCD::OPC_ExtractField, 4, 4, // Inst{7-4} ...
// CHECK-NEXT: /* 3 */ MCD::OPC_FilterValueOrFail, 0,
// CHECK-NEXT: /* 5 */ MCD::OPC_CheckField, 2, 2, 0, 6, 0, // Skip to: 17
// CHECK-NEXT: /* 11 */ MCD::OPC_TryDecode, {{[0-9]+}}, {{[0-9]+}}, 0, 0, 0, // Opcode: InstB, DecodeIdx: {{[0-9]+}}, Skip to: 17
// CHECK-NEXT: /* 17 */ MCD::OPC_Decode, {{[0-9]+}}, {{[0-9]+}}, 1, // Opcode: InstA, DecodeIdx: {{[0-9]+}}
// CHECK-NEXT: /* 21 */ MCD::OPC_Fail,
// CHECK: if (!Check(S, DecodeInstB(MI, insn, Address, Decoder))) { DecodeComplete = false; return MCDisassembler::Fail; }
// CHECK: unsigned NumToSkip = *Ptr++;
// CHECK-NEXT: NumToSkip |= (*Ptr++) << 8;
// CHECK-NEXT: return NumToSkip;
// CHECK-LARGE: /* 0 */ MCD::OPC_ExtractField, 4, 4, // Inst{7-4} ...
// CHECK-LARGE-NEXT: /* 3 */ MCD::OPC_FilterValueOrFail, 0,
// CHECK-LARGE-NEXT: /* 5 */ MCD::OPC_CheckField, 2, 2, 0, 7, 0, 0, // Skip to: 19
// CHECK-LARGE-NEXT: /* 12 */ MCD::OPC_TryDecode, {{[0-9]+}}, {{[0-9]+}}, 0, 0, 0, 0, // Opcode: InstB, DecodeIdx: {{[0-9]+}}, Skip to: 19
// CHECK-LARGE-NEXT: /* 19 */ MCD::OPC_Decode, {{[0-9]+}}, {{[0-9]+}}, 1, // Opcode: InstA, DecodeIdx: {{[0-9]+}}
// CHECK-LARGE-NEXT: /* 23 */ MCD::OPC_Fail,
// CHECK-LARGE: if (!Check(S, DecodeInstB(MI, insn, Address, Decoder))) { DecodeComplete = false; return MCDisassembler::Fail; }
// CHECK-LARGE: unsigned NumToSkip = *Ptr++;
// CHECK-LARGE-NEXT: NumToSkip |= (*Ptr++) << 8;
// CHECK-LARGE-NEXT: NumToSkip |= (*Ptr++) << 16;
// CHECK-LARGE-NEXT: return NumToSkip;