| ; RUN: llc %s -o - -print-after=machine-cse -mtriple=x86_64-- 2>&1 | FileCheck %s --match-full-lines |
| |
| ; CHECK: %5:gr32 = SUB32ri %0:gr32(tied-def 0), 1, implicit-def $eflags, debug-location !24; a.c:3:13 |
| ; CHECK-NEXT: %10:gr32 = MOVSX32rr8 %4:gr8 |
| ; CHECK-NEXT: JCC_1 %bb.2, 15, implicit $eflags, debug-location !25; a.c:3:18 |
| |
| target datalayout = "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-apple-macosx10.15.0" |
| |
| @a = dso_local local_unnamed_addr global i32 0, align 4, !dbg !0 |
| |
| ; Function Attrs: norecurse nounwind readonly ssp uwtable |
| define dso_local i32 @b(i8 signext %0) local_unnamed_addr #0 !dbg !12 { |
| call void @llvm.dbg.value(metadata i8 %0, metadata !17, metadata !DIExpression()), !dbg !18 |
| %2 = load i32, ptr @a, align 4, !dbg !19, !tbaa !20 |
| %3 = icmp sgt i32 %2, 1, !dbg !24 |
| br i1 %3, label %8, label %4, !dbg !25 |
| |
| 4: ; preds = %1 |
| %5 = sext i8 %0 to i32, !dbg !26 |
| %6 = ashr i32 %5, %2, !dbg !27 |
| %7 = icmp eq i32 %6, 0, !dbg !27 |
| br i1 %7, label %10, label %8, !dbg !28 |
| |
| 8: ; preds = %4, %1 |
| %9 = sext i8 %0 to i32, !dbg !29 |
| br label %10, !dbg !28 |
| |
| 10: ; preds = %4, %8 |
| %11 = phi i32 [ %9, %8 ], [ 0, %4 ], !dbg !28 |
| ret i32 %11, !dbg !30 |
| } |
| |
| define dso_local i32 @main() local_unnamed_addr #0 !dbg !31 { |
| %1 = call i32 @b(i8 signext 0), !dbg !34 |
| ret i32 %1, !dbg !35 |
| } |
| |
| declare void @llvm.dbg.value(metadata, metadata, metadata) #1 |
| |
| !llvm.dbg.cu = !{!2} |
| !llvm.module.flags = !{!7, !8, !9, !10} |
| !llvm.ident = !{!11} |
| |
| !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) |
| !1 = distinct !DIGlobalVariable(name: "a", scope: !2, file: !3, line: 1, type: !6, isLocal: false, isDefinition: true) |
| !2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 11.0.0 (https://github.com/llvm/llvm-project 75cfd382201978615cca1c91c2d9f14f8b7af56d)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, nameTableKind: None, sysroot: "/") |
| !3 = !DIFile(filename: "a.c", directory: "/Users/davide/work/build/bin") |
| !4 = !{} |
| !5 = !{!0} |
| !6 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !7 = !{i32 7, !"Dwarf Version", i32 4} |
| !8 = !{i32 2, !"Debug Info Version", i32 3} |
| !9 = !{i32 1, !"wchar_size", i32 4} |
| !10 = !{i32 7, !"PIC Level", i32 2} |
| !11 = !{!"clang version 11.0.0 (https://github.com/llvm/llvm-project 75cfd382201978615cca1c91c2d9f14f8b7af56d)"} |
| !12 = distinct !DISubprogram(name: "b", scope: !3, file: !3, line: 2, type: !13, scopeLine: 2, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !16) |
| !13 = !DISubroutineType(types: !14) |
| !14 = !{!6, !15} |
| !15 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char) |
| !16 = !{!17} |
| !17 = !DILocalVariable(name: "c", arg: 1, scope: !12, file: !3, line: 2, type: !15) |
| !18 = !DILocation(line: 0, scope: !12) |
| !19 = !DILocation(line: 3, column: 11, scope: !12) |
| !20 = !{!21, !21, i64 0} |
| !21 = !{!"int", !22, i64 0} |
| !22 = !{!"omnipotent char", !23, i64 0} |
| !23 = !{!"Simple C/C++ TBAA"} |
| !24 = !DILocation(line: 3, column: 13, scope: !12) |
| !25 = !DILocation(line: 3, column: 18, scope: !12) |
| !26 = !DILocation(line: 3, column: 21, scope: !12) |
| !27 = !DILocation(line: 3, column: 23, scope: !12) |
| !28 = !DILocation(line: 3, column: 10, scope: !12) |
| !29 = !DILocation(line: 4, column: 16, scope: !12) |
| !30 = !DILocation(line: 3, column: 3, scope: !12) |
| !31 = distinct !DISubprogram(name: "main", scope: !3, file: !3, line: 8, type: !32, scopeLine: 9, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !4) |
| !32 = !DISubroutineType(types: !33) |
| !33 = !{!6} |
| !34 = !DILocation(line: 10, column: 10, scope: !31) |
| !35 = !DILocation(line: 10, column: 3, scope: !31) |