forked from OSchip/llvm-project
[Codegen] Set ARITH_FENCE as meta-instruction
ARITH_FENCE, which was added by https://reviews.llvm.org/D99675, should be a meta-instruction b/c it only emits comments "ARITH_FENCE". Reviewed By: pengfei, LuoYuanke Differential Revision: https://reviews.llvm.org/D112127
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@ -1331,6 +1331,7 @@ public:
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case TargetOpcode::LIFETIME_START:
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case TargetOpcode::LIFETIME_END:
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case TargetOpcode::PSEUDO_PROBE:
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case TargetOpcode::ARITH_FENCE:
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return true;
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}
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}
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@ -290,6 +290,64 @@ CHECK: %1:gpr32 = LDRWui %0, 0 :: (load (s32) from %ir.p, !alias.scope ![[MMSET0
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EXPECT_TRUE(checkOutput(CheckString, Output));
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}
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TEST_F(MachineMetadataTest, isMetaInstruction) {
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auto TM = createTargetMachine(Triple::normalize("x86_64--"), "", "");
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if (!TM)
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GTEST_SKIP();
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StringRef MIRString = R"MIR(
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--- |
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define void @test0(i32 %b) {
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ret void
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}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None)
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!1 = !DIFile(filename: "a.c", directory: "/tmp")
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!2 = !{i32 7, !"Dwarf Version", i32 4}
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!3 = !{i32 2, !"Debug Info Version", i32 3}
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!4 = !{i32 1, !"wchar_size", i32 4}
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!5 = !{i32 7, !"uwtable", i32 1}
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!6 = !{i32 7, !"frame-pointer", i32 2}
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!7 = !{!""}
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!8 = distinct !DISubprogram(name: "test0", scope: !1, file: !1, line: 1, type: !9, scopeLine: 1, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !12)
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!9 = !DISubroutineType(types: !10)
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!10 = !{null, !11}
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!11 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!12 = !{}
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!13 = !DILocalVariable(name: "b", arg: 1, scope: !8, file: !1, line: 1, type: !11)
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!14 = !DILocation(line: 1, column: 16, scope: !8)
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...
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---
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name: test0
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machineFunctionInfo
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body: |
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bb.0:
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$rdi = IMPLICIT_DEF
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KILL $rsi
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CFI_INSTRUCTION undefined $rax
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EH_LABEL 0
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GC_LABEL 0
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DBG_VALUE $rax, $noreg, !13, !DIExpression(), debug-location !14
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DBG_LABEL 0
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LIFETIME_START 0
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LIFETIME_END 0
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PSEUDO_PROBE 6699318081062747564, 1, 0, 0
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$xmm0 = ARITH_FENCE $xmm0
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...
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)MIR";
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MachineModuleInfo MMI(TM.get());
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M = parseMIR(*TM, MIRString, "test0", MMI);
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ASSERT_TRUE(M);
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auto *MF = MMI.getMachineFunction(*M->getFunction("test0"));
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auto *MBB = MF->getBlockNumbered(0);
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for (auto It = MBB->begin(); It != MBB->end(); ++It) {
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MachineInstr &MI = *It;
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ASSERT_TRUE(MI.isMetaInstruction());
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}
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}
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TEST_F(MachineMetadataTest, MMSlotTrackerX64) {
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auto TM = createTargetMachine(Triple::normalize("x86_64--"), "", "");
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if (!TM)
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