1# RUN: llc -O1 -emit-call-site-info -filetype=obj -mtriple thumbv7em-apple-unknown-macho -start-after=machineverifier %s -o %t.o 2# RUN: llvm-dwarfdump %t.o | FileCheck %s 3 4# Crash test, reduced from: 5# 6# a(float); 7# b(double c) { 8# d(); 9# a(c); 10# } 11# 12# Some minor surgery was performed on the MIR to remove a call to a truncating 13# cast builtin between the calls to "d" and "a", and to force d0 as the copy dst 14# and s0 as the forwarding reg. 15# 16# This was done to test the case where the copy dst (d0) is a super-reg of the 17# forwarding reg (s0). 18 19# CHECK: DW_TAG_GNU_call_site 20# CHECK-NEXT: DW_AT_abstract_origin {{.*}} "a" 21# CHECK-NOT: call_site_parameter 22 23--- | 24 target datalayout = "e-m:o-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64" 25 target triple = "thumbv7em-apple-unknown-macho" 26 ; Function Attrs: nounwind optsize uwtable 27 define arm_aapcs_vfpcc i32 @b(double %c) local_unnamed_addr #0 !dbg !16 { 28 entry: 29 call void @llvm.dbg.value(metadata double %c, metadata !21, metadata !DIExpression()), !dbg !22 30 %call = tail call arm_aapcs_vfpcc i32 @d(), !dbg !23 31 %conv = fptrunc double %c to float, !dbg !24 32 %call1 = tail call arm_aapcs_vfpcc i32 @a(float %conv), !dbg !25 33 ret i32 undef, !dbg !26 34 } 35 declare arm_aapcs_vfpcc i32 @d(...) local_unnamed_addr #0 36 declare !dbg !4 arm_aapcs_vfpcc i32 @a(float) local_unnamed_addr #0 37 declare void @llvm.dbg.value(metadata, metadata, metadata) 38 declare void @llvm.stackprotector(ptr, ptr) 39 40 attributes #0 = { "disable-tail-calls"="false" "frame-pointer"="all" "target-features"="+thumb-mode,+vfp2" } 41 42 !llvm.dbg.cu = !{!0} 43 !llvm.module.flags = !{!10, !11, !12, !13, !14} 44 !llvm.ident = !{!15} 45 46 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 10.0.0 (git@github.com:apple/llvm-project.git 6203ec90d0bb0fd705fc0ad00ee263e5579aa709)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, nameTableKind: None) 47 !1 = !DIFile(filename: "jnyn_freeBSD.c", directory: "/Users/vsk/tmp/jnyn") 48 !2 = !{} 49 !3 = !{!4} 50 !4 = !DISubprogram(name: "a", scope: !5, file: !5, line: 1, type: !6, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2) 51 !5 = !DIFile(filename: "unreduced2.c", directory: "/Users/vsk/tmp/jnyn") 52 !6 = !DISubroutineType(types: !7) 53 !7 = !{!8, !9} 54 !8 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 55 !9 = !DIBasicType(name: "float", size: 32, encoding: DW_ATE_float) 56 !10 = !{i32 7, !"Dwarf Version", i32 4} 57 !11 = !{i32 2, !"Debug Info Version", i32 3} 58 !12 = !{i32 1, !"wchar_size", i32 4} 59 !13 = !{i32 1, !"min_enum_size", i32 4} 60 !14 = !{i32 7, !"PIC Level", i32 2} 61 !15 = !{!"clang version 10.0.0 (git@github.com:apple/llvm-project.git 6203ec90d0bb0fd705fc0ad00ee263e5579aa709)"} 62 !16 = distinct !DISubprogram(name: "b", scope: !5, file: !5, line: 2, type: !17, scopeLine: 2, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !20) 63 !17 = !DISubroutineType(types: !18) 64 !18 = !{!8, !19} 65 !19 = !DIBasicType(name: "double", size: 64, encoding: DW_ATE_float) 66 !20 = !{!21} 67 !21 = !DILocalVariable(name: "c", arg: 1, scope: !16, file: !5, line: 2, type: !19) 68 !22 = !DILocation(line: 0, scope: !16) 69 !23 = !DILocation(line: 3, column: 3, scope: !16) 70 !24 = !DILocation(line: 4, column: 5, scope: !16) 71 !25 = !DILocation(line: 4, column: 3, scope: !16) 72 !26 = !DILocation(line: 5, column: 1, scope: !16) 73 74... 75--- 76name: b 77callSites: 78 - { bb: 0, offset: 12, fwdArgRegs: [] } 79 - { bb: 0, offset: 15, fwdArgRegs: 80 - { arg: 0, reg: '$s0' } } 81body: | 82 bb.0.entry: 83 liveins: $d0, $lr, $d8 84 85 DBG_VALUE $d0, $noreg, !21, !DIExpression(), debug-location !22 86 frame-setup tPUSH 14, $noreg, $r7, killed $lr, implicit-def $sp, implicit $sp 87 frame-setup CFI_INSTRUCTION def_cfa_offset 8 88 frame-setup CFI_INSTRUCTION offset $lr, -4 89 frame-setup CFI_INSTRUCTION offset $r7, -8 90 $r7 = frame-setup tMOVr $sp, 14, $noreg 91 frame-setup CFI_INSTRUCTION def_cfa_register $r7 92 $sp = frame-setup VSTMDDB_UPD $sp, 14, $noreg, killed $d8 93 frame-setup CFI_INSTRUCTION offset $d8, -16 94 $s16 = VMOVS killed $s0, 14, $noreg 95 $s17 = VMOVS killed $s1, 14, $noreg, implicit-def $d8 96 DBG_VALUE $d8, $noreg, !21, !DIExpression(), debug-location !22 97 tBL 14, $noreg, @d, csr_aapcs, implicit-def dead $lr, implicit $sp, implicit-def $sp, implicit-def dead $r0, debug-location !23 98 $d0 = VMOVD killed $d8, 14, $noreg, debug-location !24 99 DBG_VALUE $d0, $noreg, !21, !DIExpression(), debug-location !22 100 tTAILJMPd @a, 14, $noreg, implicit $sp, implicit $sp, implicit killed $s0, debug-location !25 101 102... 103