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[llvm] X86DiscriminateMemOps: insert debug info when missing
Reviewers: davidxl Reviewed By: davidxl Subscribers: aprantl, hiraditya, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D61735 llvm-svn: 360396
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llvm/test/CodeGen/X86/discriminate-mem-ops-missing-info.ll
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; RUN: llc -x86-discriminate-memops < %s | FileCheck %s | ||
; | ||
; original source, compiled with -O3 -gmlt -fdebug-info-for-profiling: | ||
; int sum(int* arr, int pos1, int pos2) { | ||
; return arr[pos1] + arr[pos2]; | ||
; } | ||
; | ||
; ModuleID = 'test.cc' | ||
source_filename = "test.cc" | ||
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" | ||
target triple = "x86_64-unknown-linux-gnu" | ||
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declare void @llvm.prefetch(i8 *, i32, i32, i32) | ||
; Function Attrs: norecurse nounwind readonly uwtable | ||
define i32 @sum(i32* %arr, i32 %pos1, i32 %pos2) !dbg !7 { | ||
entry: | ||
%idxprom = sext i32 %pos1 to i64 | ||
%arrayidx = getelementptr inbounds i32, i32* %arr, i64 %idxprom | ||
%0 = load i32, i32* %arrayidx, align 4 | ||
%idxprom1 = sext i32 %pos2 to i64 | ||
%arrayidx2 = getelementptr inbounds i32, i32* %arr, i64 %idxprom1 | ||
%1 = load i32, i32* %arrayidx2, align 4 | ||
%add = add nsw i32 %1, %0, !dbg !15 | ||
ret i32 %add | ||
} | ||
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attributes #0 = { "target-cpu"="x86-64" } | ||
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!llvm.dbg.cu = !{!0} | ||
!llvm.module.flags = !{!3, !4, !5} | ||
!llvm.ident = !{!6} | ||
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, isOptimized: true, runtimeVersion: 0, emissionKind: LineTablesOnly, enums: !2, debugInfoForProfiling: true) | ||
!1 = !DIFile(filename: "test.cc", directory: "/tmp") | ||
!2 = !{} | ||
!3 = !{i32 2, !"Dwarf Version", i32 4} | ||
!4 = !{i32 2, !"Debug Info Version", i32 3} | ||
!5 = !{i32 1, !"wchar_size", i32 4} | ||
!6 = !{!"clang version 7.0.0 (trunk 322155) (llvm/trunk 322159)"} | ||
!7 = distinct !DISubprogram(name: "sum", linkageName: "sum", scope: !1, file: !1, line: 1, type: !8, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: true, unit: !0) | ||
!8 = !DISubroutineType(types: !2) | ||
!9 = !DILocation(line: 2, column: 10, scope: !7) | ||
!10 = !{!11, !11, i64 0} | ||
!11 = !{!"int", !12, i64 0} | ||
!12 = !{!"omnipotent char", !13, i64 0} | ||
!13 = !{!"Simple C++ TBAA"} | ||
!15 = !DILocation(line: 2, column: 20, scope: !7) | ||
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;CHECK-LABEL: sum: | ||
;CHECK: # %bb.0: | ||
;CHECK: .loc 1 1 0 {{.*}} discriminator 2 | ||
;CHECK-NEXT: movl (%rdi,%rax,4), %eax | ||
;CHECK-NEXT: .loc 1 2 20 | ||
;CHECK-NEXT: addl (%rdi,%rcx,4), %eax |