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81 lines
3.8 KiB
81 lines
3.8 KiB
; RUN: llc %s -o - -print-after=machine-cse -mtriple=x86_64-- 2>&1 | FileCheck %s --match-full-lines
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; CHECK: %5:gr32 = SUB32ri8 %0:gr32(tied-def 0), 1, implicit-def $eflags, debug-location !24; a.c:3:13
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; CHECK-NEXT: %10:gr32 = MOVSX32rr8 %4:gr8
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; CHECK-NEXT: JCC_1 %bb.2, 15, implicit $eflags, debug-location !25; a.c:3:18
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target datalayout = "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-apple-macosx10.15.0"
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@a = local_unnamed_addr global i32 0, align 4, !dbg !0
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; Function Attrs: norecurse nounwind readonly ssp uwtable
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define i32 @b(i8 signext %0) local_unnamed_addr #0 !dbg !12 {
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call void @llvm.dbg.value(metadata i8 %0, metadata !17, metadata !DIExpression()), !dbg !18
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%2 = load i32, i32* @a, align 4, !dbg !19, !tbaa !20
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%3 = icmp sgt i32 %2, 1, !dbg !24
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br i1 %3, label %8, label %4, !dbg !25
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4: ; preds = %1
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%5 = sext i8 %0 to i32, !dbg !26
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%6 = ashr i32 %5, %2, !dbg !27
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%7 = icmp eq i32 %6, 0, !dbg !27
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br i1 %7, label %10, label %8, !dbg !28
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8: ; preds = %4, %1
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%9 = sext i8 %0 to i32, !dbg !29
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br label %10, !dbg !28
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10: ; preds = %4, %8
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%11 = phi i32 [ %9, %8 ], [ 0, %4 ], !dbg !28
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ret i32 %11, !dbg !30
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}
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define i32 @main() local_unnamed_addr #0 !dbg !31 {
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%1 = call i32 @b(i8 signext 0), !dbg !34
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ret i32 %1, !dbg !35
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}
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declare void @llvm.dbg.value(metadata, metadata, metadata) #1
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!llvm.dbg.cu = !{!2}
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!llvm.module.flags = !{!7, !8, !9, !10}
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!llvm.ident = !{!11}
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!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
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!1 = distinct !DIGlobalVariable(name: "a", scope: !2, file: !3, line: 1, type: !6, isLocal: false, isDefinition: true)
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!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: "/")
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!3 = !DIFile(filename: "a.c", directory: "/Users/davide/work/build/bin")
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!4 = !{}
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!5 = !{!0}
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!6 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!7 = !{i32 7, !"Dwarf Version", i32 4}
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!8 = !{i32 2, !"Debug Info Version", i32 3}
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!9 = !{i32 1, !"wchar_size", i32 4}
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!10 = !{i32 7, !"PIC Level", i32 2}
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!11 = !{!"clang version 11.0.0 (https://github.com/llvm/llvm-project 75cfd382201978615cca1c91c2d9f14f8b7af56d)"}
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!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)
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!13 = !DISubroutineType(types: !14)
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!14 = !{!6, !15}
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!15 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char)
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!16 = !{!17}
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!17 = !DILocalVariable(name: "c", arg: 1, scope: !12, file: !3, line: 2, type: !15)
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!18 = !DILocation(line: 0, scope: !12)
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!19 = !DILocation(line: 3, column: 11, scope: !12)
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!20 = !{!21, !21, i64 0}
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!21 = !{!"int", !22, i64 0}
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!22 = !{!"omnipotent char", !23, i64 0}
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!23 = !{!"Simple C/C++ TBAA"}
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!24 = !DILocation(line: 3, column: 13, scope: !12)
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!25 = !DILocation(line: 3, column: 18, scope: !12)
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!26 = !DILocation(line: 3, column: 21, scope: !12)
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!27 = !DILocation(line: 3, column: 23, scope: !12)
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!28 = !DILocation(line: 3, column: 10, scope: !12)
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!29 = !DILocation(line: 4, column: 16, scope: !12)
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!30 = !DILocation(line: 3, column: 3, scope: !12)
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!31 = distinct !DISubprogram(name: "main", scope: !3, file: !3, line: 8, type: !32, scopeLine: 9, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !4)
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!32 = !DISubroutineType(types: !33)
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!33 = !{!6}
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!34 = !DILocation(line: 10, column: 10, scope: !31)
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!35 = !DILocation(line: 10, column: 3, scope: !31)
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