11dc0e47cSJeremy Morse; RUN: llc -mtriple=x86_64-unknown-linux-gnu -start-after=codegenprepare -stop-before=finalize-isel -o - %s -experimental-debug-variable-locations=false | FileCheck %s 2*2191d502SJeremy Morse; RUN: llc -mtriple=x86_64-unknown-linux-gnu -start-after=codegenprepare -stop-before=finalize-isel -o - %s -experimental-debug-variable-locations=true | FileCheck %s --check-prefixes=INSTRREF 36a471403STobias Bosch 46a471403STobias Bosch; Input to this test looked like this and was compiled using: clang -g -O1 -mllvm -stop-after=codegenprepare -S 56a471403STobias Bosch; 66a471403STobias Bosch; int fn1(long t1) { 76a471403STobias Bosch; return t; 86a471403STobias Bosch; } 96a471403STobias Bosch; 106a471403STobias Bosch 116a471403STobias Bosch; Catch metadata references for involved variables. 126a471403STobias Bosch; 136a471403STobias Bosch; CHECK-DAG: ![[T1:.*]] = !DILocalVariable(name: "t1" 14*2191d502SJeremy Morse; INSTRREF-DAG: ![[T1:.*]] = !DILocalVariable(name: "t1" 156a471403STobias Bosch 166a471403STobias Bosch 176a471403STobias Boschdefine dso_local i32 @fn1(i64 %t1) local_unnamed_addr #0 !dbg !7 { 186a471403STobias Bosch; We expect that the same width COPY reuses the debug location, 196a471403STobias Bosch; but the width narrowing COPY does not. 206a471403STobias Bosch; 216a471403STobias Bosch; CHECK-LABEL: name: fn1 226a471403STobias Bosch; CHECK: DBG_VALUE $rdi, $noreg, ![[T1]], !DIExpression(), 236a471403STobias Bosch; CHECK-NEXT: %0:gr64 = COPY $rdi 246a471403STobias Bosch; CHECK-NEXT: DBG_VALUE %0, $noreg, ![[T1]], !DIExpression(), 256a471403STobias Bosch; CHECK-NEXT: %1:gr32 = COPY %0.sub_32bit 266a471403STobias Bosch; CHECK-NEXT: COPY 276a471403STobias Bosch; CHECK-NEXT: RET 28*2191d502SJeremy Morse; 29*2191d502SJeremy Morse;; For instr-ref, no copies should be considered. Because argumenst are 30*2191d502SJeremy Morse;; Special, we don't label them in the same way, and currently emit a 31*2191d502SJeremy Morse;; DBG_VALUE for the physreg. 32*2191d502SJeremy Morse; INSTRREF-LABEL: name: fn1 33*2191d502SJeremy Morse; INSTRREF: DBG_VALUE $rdi, $noreg, ![[T1]], !DIExpression(), 34*2191d502SJeremy Morse; INSTRREF-NEXT: %0:gr64 = COPY $rdi 35*2191d502SJeremy Morse; INSTRREF-NEXT: %1:gr32 = COPY %0.sub_32bit 36*2191d502SJeremy Morse; INSTRREF-NEXT: COPY 37*2191d502SJeremy Morse; INSTRREF-NEXT: RET 38*2191d502SJeremy Morse 396a471403STobias Boschentry: 406a471403STobias Bosch call void @llvm.dbg.value(metadata i64 %t1, metadata !13, metadata !DIExpression()), !dbg !14 416a471403STobias Bosch %0 = trunc i64 %t1 to i32, !dbg !15 426a471403STobias Bosch ret i32 %0, !dbg !16 436a471403STobias Bosch} 446a471403STobias Bosch 456a471403STobias Boschdeclare void @llvm.dbg.value(metadata, metadata, metadata) #1 466a471403STobias Bosch 476a471403STobias Boschattributes #0 = { norecurse nounwind readnone uwtable } 486a471403STobias Boschattributes #1 = { nounwind readnone speculatable willreturn } 496a471403STobias Bosch 506a471403STobias Bosch!llvm.dbg.cu = !{!0} 516a471403STobias Bosch!llvm.module.flags = !{!3, !4, !5} 526a471403STobias Bosch!llvm.ident = !{!6} 536a471403STobias Bosch 546a471403STobias Bosch!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 11.0.0 (git@github.com:tbosch/llvm-project.git 0b11aed869bf09ba60 556a471403STobias Boschd7ed17334cf0b76e6a5922)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None) 566a471403STobias Bosch!1 = !DIFile(filename: "test.cc", directory: "") 576a471403STobias Bosch!2 = !{} 586a471403STobias Bosch!3 = !{i32 7, !"Dwarf Version", i32 4} 596a471403STobias Bosch!4 = !{i32 2, !"Debug Info Version", i32 3} 606a471403STobias Bosch!5 = !{i32 1, !"wchar_size", i32 4} 616a471403STobias Bosch!6 = !{!"clang version 11.0.0 (git@github.com:tbosch/llvm-project.git 0b11aed869bf09ba60d7ed17334cf0b76e6a5922)"} 626a471403STobias Bosch!7 = distinct !DISubprogram(name: "fn1", scope: !1, file: !1, line: 1, type: !8, scopeLine: 1, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !12) 636a471403STobias Bosch!8 = !DISubroutineType(types: !9) 646a471403STobias Bosch!9 = !{!10, !11} 656a471403STobias Bosch!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 666a471403STobias Bosch!11 = !DIBasicType(name: "long int", size: 64, encoding: DW_ATE_signed) 676a471403STobias Bosch!12 = !{!13} 686a471403STobias Bosch!13 = !DILocalVariable(name: "t1", arg: 1, scope: !7, file: !1, line: 1, type: !11) 696a471403STobias Bosch!14 = !DILocation(line: 0, scope: !7) 706a471403STobias Bosch!15 = !DILocation(line: 2, column: 10, scope: !7) 716a471403STobias Bosch!16 = !DILocation(line: 2, column: 3, scope: !7) 72