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1# RUN: llc -mtriple aarch64-linux-gnu -emit-call-site-info -debug-entry-values -start-before=aarch64-asm-printer -filetype=obj -o - %s \2# RUN: | llvm-dwarfdump - | FileCheck %s --implicit-check-not=DW_TAG_GNU_call_site_parameter3#4# Based on the following C reproducer:5#6# extern void call(long, long, long);7#8# void entry_value (long param) {9# call(param + 222, param - 444, param);10# }11 12--- |13 target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"14 target triple = "aarch64"15 16 define dso_local void @entry_value(i64 %param) local_unnamed_addr !dbg !12 {17 entry:18 call void @llvm.dbg.value(metadata i64 %param, metadata !16, metadata !DIExpression()), !dbg !1719 %add = add nsw i64 %param, 222, !dbg !1720 %sub = add nsw i64 %param, -444, !dbg !1721 call void @call(i64 %add, i64 %sub, i64 %param), !dbg !1722 ret void, !dbg !1723 }24 25 declare !dbg !4 dso_local void @call(i64, i64, i64) local_unnamed_addr26 27 declare void @llvm.dbg.value(metadata, metadata, metadata)28 29 !llvm.dbg.cu = !{!0}30 !llvm.module.flags = !{!8, !9, !10}31 !llvm.ident = !{!11}32 33 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 11.0.0 ", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, splitDebugInlining: false, nameTableKind: None)34 !1 = !DIFile(filename: "dbgcall-site-expr-entry-value.mir", directory: "/")35 !2 = !{}36 !3 = !{!4}37 !4 = !DISubprogram(name: "call", scope: !1, file: !1, line: 1, type: !5, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2)38 !5 = !DISubroutineType(types: !6)39 !6 = !{null, !7, !7, !7}40 !7 = !DIBasicType(name: "long int", size: 64, encoding: DW_ATE_signed)41 !8 = !{i32 7, !"Dwarf Version", i32 4}42 !9 = !{i32 2, !"Debug Info Version", i32 3}43 !10 = !{i32 1, !"wchar_size", i32 4}44 !11 = !{!"clang version 11.0.0 "}45 !12 = distinct !DISubprogram(name: "entry_value", scope: !1, file: !1, line: 3, type: !13, scopeLine: 3, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !15)46 !13 = !DISubroutineType(types: !14)47 !14 = !{null, !7}48 !15 = !{!16}49 !16 = !DILocalVariable(name: "param", arg: 1, scope: !12, file: !1, line: 3, type: !7)50 !17 = !DILocation(line: 4, scope: !12)51 52...53---54name: entry_value55tracksRegLiveness: true56stack:57 - { id: 0, type: spill-slot, offset: -8, size: 8, alignment: 8, callee-saved-register: '$lr' }58 - { id: 1, type: spill-slot, offset: -16, size: 8, alignment: 8, callee-saved-register: '$fp' }59callSites:60 - { bb: 0, offset: 10, fwdArgRegs:61 - { arg: 0, reg: '$x0' }62 - { arg: 1, reg: '$x1' }63 - { arg: 2, reg: '$x2' } }64body: |65 bb.0.entry:66 liveins: $x0, $lr67 68 DBG_VALUE $x0, $noreg, !16, !DIExpression(), debug-location !1769 early-clobber $sp = frame-setup STPXpre $fp, killed $lr, $sp, -2 :: (store (s64) into %stack.1), (store (s64) into %stack.0)70 $fp = frame-setup ADDXri $sp, 0, 071 frame-setup CFI_INSTRUCTION def_cfa $w29, 1672 frame-setup CFI_INSTRUCTION offset $w30, -873 frame-setup CFI_INSTRUCTION offset $w29, -1674 $x2 = ORRXrs $xzr, $x0, 075 DBG_VALUE $x2, $noreg, !16, !DIExpression(), debug-location !1776 renamable $x0 = nsw ADDXri killed $x0, 222, 0, debug-location !1777 renamable $x1 = nsw SUBXri renamable $x2, 444, 0, debug-location !1778 BL @call, csr_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit killed $x0, implicit killed $x1, implicit killed $x2, implicit-def $sp, debug-location !1779 early-clobber $sp, $fp, $lr = frame-destroy LDPXpost $sp, 2, debug-location !17 :: (load (s64) from %stack.1), (load (s64) from %stack.0)80 RET undef $lr, debug-location !1781 82...83 84# Verify that a call site parameter is emitted for the third parameter. There85# should also be entries for the first and second parameter, but86# DW_OP_LLVM_entry_value operations can currently not be emitted together with87# any other expressions. Verify that nothing is emitted rather than an assert88# being triggered, or broken expressions being emitted.89 90# CHECK: DW_TAG_GNU_call_site_parameter91# CHECK-NEXT: DW_AT_location (DW_OP_reg2 W2)92# CHECK-NEXT: DW_AT_GNU_call_site_value (DW_OP_GNU_entry_value(DW_OP_reg0 W0))93