# RUN: llc %s -o - -run-pass=early-tailduplication | FileCheck %s --check-prefixes=CHECK,DEBUG # RUN: llc %s -o - -run-pass=mir-strip-debug,early-tailduplication -mir-strip-debugify-only=0 | FileCheck %s --check-prefix=CHECK # We should get the same result with and without debug information. # Specifically, the register class of [[COPY]] should not be changed to # gpr32common with debug info while staying as gpr32sp without. --- | target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128" target triple = "aarch64-none-linux-gnu" define void @test() !dbg !8 { entry: ret void } !llvm.dbg.cu = !{!0} !llvm.module.flags = !{!2, !3, !4, !5} !llvm.ident = !{!6} !0 = distinct !DICompileUnit(language: DW_LANG_C11, file: !1, producer: "My compiler", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None) !1 = !DIFile(filename: "foo.c", directory: "/bar") !2 = !{i32 7, !"Dwarf Version", i32 4} !3 = !{i32 2, !"Debug Info Version", i32 3} !4 = !{i32 1, !"wchar_size", i32 1} !5 = !{i32 7, !"frame-pointer", i32 2} !6 = !{!"My compiler"} !7 = !DILocalVariable(name: "i", scope: !8, file: !1, line: 6, type: !12) !8 = distinct !DISubprogram(name: "test", scope: !1, file: !1, line: 5, type: !9, scopeLine: 5, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !11) !9 = !DISubroutineType(types: !10) !10 = !{null} !11 = !{!7} !12 = !DIBasicType(name: "int", size: 16, encoding: DW_ATE_signed) !13 = !DILocation(line: 0, scope: !8) ... --- name: test tracksRegLiveness: true liveins: [] body: | ; CHECK-LABEL: name: test ; CHECK: bb.0: ; CHECK-NEXT: successors: %bb.2(0x40000000), %bb.1(0x40000000) ; CHECK-NEXT: liveins: $w0, $wzr ; CHECK-NEXT: {{ $}} ; CHECK-NEXT: [[COPY:%[0-9]+]]:gpr32sp = COPY $w0 ; CHECK-NEXT: CBNZW $wzr, %bb.2 ; CHECK-NEXT: {{ $}} ; CHECK-NEXT: bb.1: ; CHECK-NEXT: successors: %bb.4(0x80000000) ; CHECK-NEXT: {{ $}} ; CHECK-NEXT: $x0 = COPY undef $x0 ; DEBUG-NEXT: DBG_VALUE [[COPY]], $noreg, !11, !DIExpression(), debug-location !DILocation(line: 0, scope: !7) ; CHECK-NEXT: [[COPY1:%[0-9]+]]:gpr32 = COPY [[COPY]] ; CHECK-NEXT: B %bb.4 ; CHECK-NEXT: {{ $}} ; CHECK-NEXT: bb.2: ; CHECK-NEXT: successors: %bb.4(0x80000000) ; CHECK-NEXT: {{ $}} ; DEBUG-NEXT: DBG_VALUE [[COPY]], $noreg, !11, !DIExpression(), debug-location !DILocation(line: 0, scope: !7) ; CHECK-NEXT: [[COPY2:%[0-9]+]]:gpr32 = COPY [[COPY]] ; CHECK-NEXT: {{ $}} ; CHECK-NEXT: bb.4: ; CHECK-NEXT: RET undef $lr, implicit undef $w0 bb.0: successors: %bb.2, %bb.1 liveins: $w0, $wzr %1:gpr32sp = COPY $w0 CBNZW $wzr, %bb.2 bb.1: successors: %bb.3 $x0 = COPY undef $x0 B %bb.3 bb.2: successors: %bb.3 bb.3: successors: %bb.5 %2:gpr32 = PHI %1, %bb.1, %1, %bb.2 DBG_VALUE %2, $noreg, !7, !DIExpression(), debug-location !13 B %bb.5 bb.4: RET undef $lr, implicit undef $w0 bb.5: successors: %bb.4 B %bb.4 ...