diff options
| -rw-r--r-- | llvm/lib/CodeGen/GlobalISel/RegisterBankInfo.cpp | 7 | ||||
| -rw-r--r-- | llvm/test/CodeGen/AArch64/GlobalISel/regbankselect-dbg-value.mir | 45 |
2 files changed, 52 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/GlobalISel/RegisterBankInfo.cpp b/llvm/lib/CodeGen/GlobalISel/RegisterBankInfo.cpp index 74161e3c6bd..2901761c1cd 100644 --- a/llvm/lib/CodeGen/GlobalISel/RegisterBankInfo.cpp +++ b/llvm/lib/CodeGen/GlobalISel/RegisterBankInfo.cpp @@ -352,6 +352,13 @@ void RegisterBankInfo::applyDefaultMapping(const OperandsMapper &OpdMapper) { DEBUG(dbgs() << " is not a register, nothing to be done\n"); continue; } + if (!MO.getReg()) { + DEBUG(dbgs() << " is %%noreg, nothing to be done\n"); + continue; + } + assert(OpdMapper.getInstrMapping().getOperandMapping(OpIdx).NumBreakDowns != + 0 && + "Invalid mapping"); assert(OpdMapper.getInstrMapping().getOperandMapping(OpIdx).NumBreakDowns == 1 && "This mapping is too complex for this function"); diff --git a/llvm/test/CodeGen/AArch64/GlobalISel/regbankselect-dbg-value.mir b/llvm/test/CodeGen/AArch64/GlobalISel/regbankselect-dbg-value.mir new file mode 100644 index 00000000000..73d4d205472 --- /dev/null +++ b/llvm/test/CodeGen/AArch64/GlobalISel/regbankselect-dbg-value.mir @@ -0,0 +1,45 @@ +# RUN: llc -O0 -mtriple arm64-- -run-pass=regbankselect -global-isel %s -o - | FileCheck %s + +--- | + target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128" + + define void @test_dbg_value() !dbg !5 { + ; Keep the dbg metadata live by referencing it in the IR. + call void @llvm.dbg.value(metadata i32 0, i64 0, metadata !7, metadata !9), !dbg !10 + ret void + } + + declare void @llvm.dbg.value(metadata, i64, metadata, metadata) + + !llvm.dbg.cu = !{!0} + !llvm.module.flags = !{!3, !4} + + !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "llvm", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2) + !1 = !DIFile(filename: "test.ll", directory: "/tmp") + !2 = !{} + !3 = !{i32 2, !"Dwarf Version", i32 4} + !4 = !{i32 2, !"Debug Info Version", i32 3} + !5 = distinct !DISubprogram(name: "test_dbg_value", scope: !1, file: !1, line: 1, type: !6, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !2) + !6 = !DISubroutineType(types: !2) + !7 = !DILocalVariable(name: "in", arg: 1, scope: !5, file: !1, line: 1, type: !8) + !8 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) + !9 = !DIExpression() + !10 = !DILocation(line: 1, column: 1, scope: !5) +... + +--- +# CHECK-LABEL: name: test_dbg_value +name: test_dbg_value +legalized: true +# CHECK: registers: +# CHECK-NEXT: - { id: 0, class: gpr } +body: | + bb.0: + liveins: %w0 + %0:_(s32) = COPY %w0 + ; CHECK: DBG_VALUE debug-use %0(s32), debug-use _, !7, !9, debug-location !10 + DBG_VALUE debug-use %0(s32), debug-use _, !7, !9, debug-location !10 + + ; CHECK: DBG_VALUE _, 0, !7, !9, debug-location !10 + DBG_VALUE _, 0, !7, !9, debug-location !10 +... |
