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[BOLT][NFC] Add MCPlusBuilder unittests for PAuth helpers #162251

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Oct 16, 2025
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[BOLT][NFC] Add MCPlusBuilder unittests for PAuth helpers #162251

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76 changes: 76 additions & 0 deletions bolt/unittests/Core/MCPlusBuilder.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -261,6 +261,82 @@ TEST_P(MCPlusBuilderTester, testAccessedRegsMultipleDefs) {
{AArch64::W5, AArch64::X5, AArch64::W5_HI});
}

TEST_P(MCPlusBuilderTester, AArch64_Psign_Pauth_variants) {
if (GetParam() != Triple::aarch64)
GTEST_SKIP();

MCInst Paciasp = MCInstBuilder(AArch64::PACIASP);
MCInst Pacibsp = MCInstBuilder(AArch64::PACIBSP);
ASSERT_TRUE(BC->MIB->isPSignOnLR(Paciasp));
ASSERT_TRUE(BC->MIB->isPSignOnLR(Pacibsp));

MCInst PaciaSPLR =
MCInstBuilder(AArch64::PACIA).addReg(AArch64::LR).addReg(AArch64::SP);
MCInst PacibSPLR =
MCInstBuilder(AArch64::PACIB).addReg(AArch64::LR).addReg(AArch64::SP);
ASSERT_TRUE(BC->MIB->isPSignOnLR(PaciaSPLR));
ASSERT_TRUE(BC->MIB->isPSignOnLR(PacibSPLR));

MCInst PacizaX5 = MCInstBuilder(AArch64::PACIZA).addReg(AArch64::X5);
MCInst PacizbX5 = MCInstBuilder(AArch64::PACIZB).addReg(AArch64::X5);
ASSERT_FALSE(BC->MIB->isPSignOnLR(PacizaX5));
ASSERT_FALSE(BC->MIB->isPSignOnLR(PacizbX5));

MCInst Paciaz = MCInstBuilder(AArch64::PACIZA).addReg(AArch64::LR);
MCInst Pacibz = MCInstBuilder(AArch64::PACIZB).addReg(AArch64::LR);
ASSERT_TRUE(BC->MIB->isPSignOnLR(Paciaz));
ASSERT_TRUE(BC->MIB->isPSignOnLR(Pacibz));

MCInst Pacia1716 = MCInstBuilder(AArch64::PACIA1716);
MCInst Pacib1716 = MCInstBuilder(AArch64::PACIB1716);
ASSERT_FALSE(BC->MIB->isPSignOnLR(Pacia1716));
ASSERT_FALSE(BC->MIB->isPSignOnLR(Pacib1716));

MCInst Pacia171615 = MCInstBuilder(AArch64::PACIA171615);
MCInst Pacib171615 = MCInstBuilder(AArch64::PACIB171615);
ASSERT_FALSE(BC->MIB->isPSignOnLR(Pacia171615));
ASSERT_FALSE(BC->MIB->isPSignOnLR(Pacib171615));

MCInst Autiasp = MCInstBuilder(AArch64::AUTIASP);
MCInst Autibsp = MCInstBuilder(AArch64::AUTIBSP);
ASSERT_TRUE(BC->MIB->isPAuthOnLR(Autiasp));
ASSERT_TRUE(BC->MIB->isPAuthOnLR(Autibsp));

MCInst AutiaSPLR =
MCInstBuilder(AArch64::AUTIA).addReg(AArch64::LR).addReg(AArch64::SP);
MCInst AutibSPLR =
MCInstBuilder(AArch64::AUTIB).addReg(AArch64::LR).addReg(AArch64::SP);
ASSERT_TRUE(BC->MIB->isPAuthOnLR(AutiaSPLR));
ASSERT_TRUE(BC->MIB->isPAuthOnLR(AutibSPLR));

MCInst AutizaX5 = MCInstBuilder(AArch64::AUTIZA).addReg(AArch64::X5);
MCInst AutizbX5 = MCInstBuilder(AArch64::AUTIZB).addReg(AArch64::X5);
ASSERT_FALSE(BC->MIB->isPAuthOnLR(AutizaX5));
ASSERT_FALSE(BC->MIB->isPAuthOnLR(AutizbX5));

MCInst Autiaz = MCInstBuilder(AArch64::AUTIZA).addReg(AArch64::LR);
MCInst Autibz = MCInstBuilder(AArch64::AUTIZB).addReg(AArch64::LR);
ASSERT_TRUE(BC->MIB->isPAuthOnLR(Autiaz));
ASSERT_TRUE(BC->MIB->isPAuthOnLR(Autibz));

MCInst Autia1716 = MCInstBuilder(AArch64::AUTIA1716);
MCInst Autib1716 = MCInstBuilder(AArch64::AUTIB1716);
ASSERT_FALSE(BC->MIB->isPAuthOnLR(Autia1716));
ASSERT_FALSE(BC->MIB->isPAuthOnLR(Autib1716));

MCInst Autia171615 = MCInstBuilder(AArch64::AUTIA171615);
MCInst Autib171615 = MCInstBuilder(AArch64::AUTIB171615);
ASSERT_FALSE(BC->MIB->isPAuthOnLR(Autia171615));
ASSERT_FALSE(BC->MIB->isPAuthOnLR(Autib171615));

MCInst Retaa = MCInstBuilder(AArch64::RETAA);
MCInst Retab = MCInstBuilder(AArch64::RETAB);
ASSERT_FALSE(BC->MIB->isPAuthOnLR(Retaa));
ASSERT_FALSE(BC->MIB->isPAuthOnLR(Retab));
ASSERT_TRUE(BC->MIB->isPAuthAndRet(Retaa));
ASSERT_TRUE(BC->MIB->isPAuthAndRet(Retab));
}

#endif // AARCH64_AVAILABLE

#ifdef X86_AVAILABLE
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