58 lines
3.1 KiB
LLVM
58 lines
3.1 KiB
LLVM
; RUN: llc -mtriple=i386-linux-gnu -global-isel -verify-machineinstrs < %s -o - | FileCheck %s --check-prefix=ALL
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; RUN: llc -mtriple=i386-linux-gnu -global-isel -verify-machineinstrs < %s -o - --try-experimental-debuginfo-iterators | FileCheck %s --check-prefix=ALL
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; This file is the output of clang -g -O2
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; int test_dbg_trunc(unsigned long long a) { return a; }
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;
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; The intent of this check is to ensure the DBG_VALUE use of G_MERGE_VALUES is undef'd when the legalizer erases it.
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; ModuleID = 'x86-calllowering-dbg-trunc.c'
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source_filename = "x86-calllowering-dbg-trunc.c"
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target datalayout = "e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-f64:32:64-f80:32-n8:16:32-S128"
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target triple = "i386"
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; Function Attrs: mustprogress nofree norecurse nosync nounwind readnone uwtable willreturn
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define dso_local i32 @test_dbg_trunc(i64 %a) local_unnamed_addr #0 !dbg !9 {
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; ALL-LABEL: test_dbg_trunc:
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; ALL: # %bb.0: # %entry
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; ALL: pushl %ebp
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; ALL: movl %esp, %ebp
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; ALL: movl 8(%ebp), %eax
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; ALL: #DEBUG_VALUE: test_dbg_trunc:a <- undef
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; ALL: popl %ebp
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; ALL: retl
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entry:
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call void @llvm.dbg.value(metadata i64 %a, metadata !15, metadata !DIExpression()), !dbg !16
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%conv = trunc i64 %a to i32, !dbg !17
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ret i32 %conv, !dbg !18
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}
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; Function Attrs: nofree nosync nounwind readnone speculatable willreturn
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declare void @llvm.dbg.value(metadata, metadata, metadata) #1
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attributes #0 = { mustprogress nofree norecurse nosync nounwind readnone uwtable willreturn "frame-pointer"="all" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="pentium4" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
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attributes #1 = { nofree nosync nounwind readnone speculatable willreturn }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!2, !3, !4, !5, !6, !7}
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!llvm.ident = !{!8}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 14.0.0 (https://github.com/llvm/llvm-project ...)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None)
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!1 = !DIFile(filename: "x86-calllowering-dbg-trunc.c", directory: "/tmp")
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!2 = !{i32 1, !"NumRegisterParameters", i32 0}
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!3 = !{i32 7, !"Dwarf Version", i32 4}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = !{i32 1, !"wchar_size", i32 4}
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!6 = !{i32 7, !"uwtable", i32 1}
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!7 = !{i32 7, !"frame-pointer", i32 2}
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!8 = !{!"clang version 14.0.0 (https://github.com/llvm/llvm-project ...)"}
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!9 = distinct !DISubprogram(name: "test_dbg_trunc", scope: !1, file: !1, line: 1, type: !10, scopeLine: 1, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !14)
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!10 = !DISubroutineType(types: !11)
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!11 = !{!12, !13}
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!12 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!13 = !DIBasicType(name: "unsigned long long", size: 64, encoding: DW_ATE_unsigned)
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!14 = !{!15}
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!15 = !DILocalVariable(name: "a", arg: 1, scope: !9, file: !1, line: 1, type: !13)
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!16 = !DILocation(line: 0, scope: !9)
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!17 = !DILocation(line: 1, column: 51, scope: !9)
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!18 = !DILocation(line: 1, column: 44, scope: !9)
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