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1# We do not support the call site info for the target now, so we use the experimental option (-emit-call-site-info -debug-entry-values).2 3# RUN: llc -emit-call-site-info -debug-entry-values -mtriple hexagon -start-after=machineverifier -filetype=obj %s -o - | llvm-dwarfdump - | FileCheck %s4 5# Based on the following C reproducer:6#7# int ga, gb, gc;8#9# extern void callee(int, int, int);10#11# void caller() {12# int a = ga;13# int b = gb;14# int c = gc;15#16# // Clobber all integer registers.17# __asm("" : : :18# "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", "r8", "r9", "r10",19# "r11", "r12", "r13", "r14", "r15", "r16", "r17", "r18", "r19", "r20",20# "r21", "r22", "r23", "r24", "r25", "r26", "r27", "r28");21#22# callee(a, b, c);23# }24 25--- |26 target datalayout = "e-m:e-p:32:32:32-a:0-n16:32-i64:64:64-i32:32:32-i16:16:16-i1:8:8-f32:32:32-f64:64:64-v32:32:32-v64:64:64-v512:512:512-v1024:1024:1024-v2048:2048:2048"27 target triple = "hexagon"28 29 @ga = common global i32 0, align 430 @gb = common global i32 0, align 431 @gc = common global i32 0, align 432 33 ; Function Attrs: nounwind34 define void @caller() #0 !dbg !12 {35 entry:36 %0 = load i32, ptr @ga, align 4, !dbg !1537 %1 = load i32, ptr @gb, align 4, !dbg !1638 %2 = load i32, ptr @gc, align 4, !dbg !1739 call void asm sideeffect "", "~{r0},~{r1},~{r2},~{r3},~{r4},~{r5},~{r6},~{r7},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15},~{r16},~{r17},~{r18},~{r19},~{r20},~{r21},~{r22},~{r23},~{r24},~{r25},~{r26},~{r27},~{r28}"(), !dbg !18, !srcloc !1940 call void @callee(i32 %0, i32 %1, i32 %2), !dbg !2041 ret void, !dbg !2142 }43 44 declare !dbg !4 void @callee(i32, i32, i32)45 46 attributes #0 = { nounwind }47 48 !llvm.dbg.cu = !{!0}49 !llvm.module.flags = !{!8, !9, !10}50 !llvm.ident = !{!11}51 52 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 10.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, globals: !2, nameTableKind: None)53 !1 = !DIFile(filename: "h.c", directory: "/")54 !2 = !{}55 !3 = !{!4}56 !4 = !DISubprogram(name: "callee", scope: !1, file: !1, line: 3, type: !5, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2)57 !5 = !DISubroutineType(types: !6)58 !6 = !{null, !7, !7, !7}59 !7 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)60 !8 = !{i32 7, !"Dwarf Version", i32 4}61 !9 = !{i32 2, !"Debug Info Version", i32 3}62 !10 = !{i32 1, !"wchar_size", i32 4}63 !11 = !{!"clang version 10.0.0"}64 !12 = distinct !DISubprogram(name: "caller", scope: !1, file: !1, line: 5, type: !13, scopeLine: 5, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)65 !13 = !DISubroutineType(types: !14)66 !14 = !{null}67 !15 = !DILocation(line: 6, scope: !12)68 !16 = !DILocation(line: 7, scope: !12)69 !17 = !DILocation(line: 8, scope: !12)70 !18 = !DILocation(line: 11, scope: !12)71 !19 = !{i32 158}72 !20 = !DILocation(line: 16, scope: !12)73 !21 = !DILocation(line: 17, scope: !12)74 75...76---77name: caller78tracksRegLiveness: true79frameInfo:80 stackSize: 6481 maxAlignment: 482 adjustsStack: true83 hasCalls: true84 maxCallFrameSize: 085fixedStack:86 - { id: 0, type: spill-slot, offset: -48, size: 8, alignment: 8, callee-saved-register: '$d13' }87 - { id: 1, type: spill-slot, offset: -40, size: 8, alignment: 8, callee-saved-register: '$d12' }88 - { id: 2, type: spill-slot, offset: -32, size: 8, alignment: 8, callee-saved-register: '$d11' }89 - { id: 3, type: spill-slot, offset: -24, size: 8, alignment: 8, callee-saved-register: '$d10' }90 - { id: 4, type: spill-slot, offset: -16, size: 8, alignment: 8, callee-saved-register: '$d9' }91 - { id: 5, type: spill-slot, offset: -8, size: 8, alignment: 8, callee-saved-register: '$d8' }92stack:93 - { id: 0, type: spill-slot, offset: -52, size: 4, alignment: 4 }94 - { id: 1, type: spill-slot, offset: -56, size: 4, alignment: 4 }95 - { id: 2, type: spill-slot, offset: -60, size: 4, alignment: 4 }96callSites:97 - { bb: 0, offset: 40, fwdArgRegs:98 - { arg: 0, reg: '$r0' }99 - { arg: 1, reg: '$r1' }100 - { arg: 2, reg: '$r2' } }101body: |102 bb.0.entry:103 liveins: $d8, $d9, $d10, $d11, $d12, $d13, $d8, $d9, $d10, $d11, $d12, $d13104 105 BUNDLE implicit-def $r29, implicit-def $r30, implicit $r29, implicit killed $framekey, implicit killed $framelimit, implicit killed $r30, implicit killed $r31, implicit killed $d8, debug-location !15 {106 $r29 = S2_allocframe $r29, 64, implicit-def $r30, implicit killed $framekey, implicit killed $framelimit, implicit killed $r30, implicit killed $r31, debug-location !15 :: (store (s32) into stack)107 S2_storerd_io internal $r29, -16, killed $d8, debug-location !15 :: (store (s64) into %fixed-stack.5)108 }109 CFI_INSTRUCTION def_cfa $r30, 8110 CFI_INSTRUCTION offset $r31, -4111 CFI_INSTRUCTION offset $r30, -8112 CFI_INSTRUCTION offset $r17, -12113 CFI_INSTRUCTION offset $r16, -16114 CFI_INSTRUCTION offset $r19, -20115 CFI_INSTRUCTION offset $r18, -24116 CFI_INSTRUCTION offset $r21, -28117 CFI_INSTRUCTION offset $r20, -32118 CFI_INSTRUCTION offset $r23, -36119 CFI_INSTRUCTION offset $r22, -40120 CFI_INSTRUCTION offset $r25, -44121 CFI_INSTRUCTION offset $r24, -48122 CFI_INSTRUCTION offset $r27, -52123 CFI_INSTRUCTION offset $r26, -56124 BUNDLE implicit $r29, implicit killed $d9, implicit killed $d10, debug-location !15 {125 S2_storerd_io $r29, 48, killed $d9, debug-location !15 :: (store (s64) into %fixed-stack.4)126 S2_storerd_io $r29, 40, killed $d10, debug-location !15 :: (store (s64) into %fixed-stack.3)127 }128 BUNDLE implicit $r29, implicit killed $d11, implicit killed $d12, debug-location !15 {129 S2_storerd_io $r29, 32, killed $d11, debug-location !15 :: (store (s64) into %fixed-stack.2)130 S2_storerd_io $r29, 24, killed $d12, debug-location !15 :: (store (s64) into %fixed-stack.1)131 }132 BUNDLE implicit-def $r0, implicit $r29, implicit killed $d13, implicit $gp, debug-location !15 {133 S2_storerd_io $r29, 16, killed $d13, debug-location !15 :: (store (s64) into %fixed-stack.0)134 renamable $r0 = L2_loadrigp @ga, implicit $gp, debug-location !15 :: (dereferenceable load (s32) from @ga)135 }136 BUNDLE implicit-def $r0, implicit $r29, implicit killed $r0, implicit $gp, debug-location !16 {137 S2_storeri_io $r29, 12, killed renamable $r0, debug-location !16 :: (store (s32) into %stack.0)138 renamable $r0 = L2_loadrigp @gb, implicit $gp, debug-location !16 :: (dereferenceable load (s32) from @gb)139 }140 BUNDLE implicit-def $r0, implicit $r29, implicit killed $r0, implicit killed $gp, debug-location !17 {141 S2_storeri_io $r29, 8, killed renamable $r0, debug-location !17 :: (store (s32) into %stack.1)142 renamable $r0 = L2_loadrigp @gc, implicit killed $gp, debug-location !17 :: (dereferenceable load (s32) from @gc)143 }144 S2_storeri_io $r29, 4, killed renamable $r0, debug-location !18 :: (store (s32) into %stack.2)145 INLINEASM &"", 1, 12, implicit-def dead early-clobber $r0, 12, implicit-def dead early-clobber $r1, 12, implicit-def dead early-clobber $r2, 12, implicit-def dead early-clobber $r3, 12, implicit-def dead early-clobber $r4, 12, implicit-def dead early-clobber $r5, 12, implicit-def dead early-clobber $r6, 12, implicit-def dead early-clobber $r7, 12, implicit-def dead early-clobber $r8, 12, implicit-def dead early-clobber $r9, 12, implicit-def dead early-clobber $r10, 12, implicit-def dead early-clobber $r11, 12, implicit-def dead early-clobber $r12, 12, implicit-def dead early-clobber $r13, 12, implicit-def dead early-clobber $r14, 12, implicit-def dead early-clobber $r15, 12, implicit-def dead early-clobber $r16, 12, implicit-def dead early-clobber $r17, 12, implicit-def dead early-clobber $r18, 12, implicit-def dead early-clobber $r19, 12, implicit-def dead early-clobber $r20, 12, implicit-def dead early-clobber $r21, 12, implicit-def dead early-clobber $r22, 12, implicit-def dead early-clobber $r23, 12, implicit-def dead early-clobber $r24, 12, implicit-def dead early-clobber $r25, 12, implicit-def dead early-clobber $r26, 12, implicit-def dead early-clobber $r27, 12, implicit-def dead early-clobber $r28, !19, debug-location !18146 BUNDLE implicit-def $r0, implicit-def $r1, implicit $r29, debug-location !20 {147 $r0 = L2_loadri_io $r29, 12, debug-location !20 :: (load (s32) from %stack.0)148 $r1 = L2_loadri_io $r29, 8, debug-location !20 :: (load (s32) from %stack.1)149 }150 BUNDLE implicit-def dead $r2, implicit-def dead $pc, implicit-def dead $r31, implicit-def $r29, implicit $r29, implicit killed $r0, implicit killed $r1, debug-location !20 {151 $r2 = L2_loadri_io $r29, 4, debug-location !20 :: (load (s32) from %stack.2)152 J2_call @callee, hexagoncsr, implicit-def dead $pc, implicit-def dead $r31, implicit $r29, implicit killed $r0, implicit killed $r1, implicit internal killed $r2, implicit-def $r29, debug-location !20153 }154 BUNDLE implicit-def $d8, implicit-def $r16, implicit-def $r17, implicit-def $d9, implicit-def $r18, implicit-def $r19, implicit $r29, debug-location !21 {155 $d8 = L2_loadrd_io $r29, 56, debug-location !21 :: (load (s64) from %fixed-stack.5)156 $d9 = L2_loadrd_io $r29, 48, debug-location !21 :: (load (s64) from %fixed-stack.4)157 }158 BUNDLE implicit-def $d10, implicit-def $r20, implicit-def $r21, implicit-def $d11, implicit-def $r22, implicit-def $r23, implicit $r29, debug-location !21 {159 $d10 = L2_loadrd_io $r29, 40, debug-location !21 :: (load (s64) from %fixed-stack.3)160 $d11 = L2_loadrd_io $r29, 32, debug-location !21 :: (load (s64) from %fixed-stack.2)161 }162 BUNDLE implicit-def $d12, implicit-def $r24, implicit-def $r25, implicit-def $d13, implicit-def $r26, implicit-def $r27, implicit killed $r29, debug-location !21 {163 $d12 = L2_loadrd_io $r29, 24, debug-location !21 :: (load (s64) from %fixed-stack.1)164 $d13 = L2_loadrd_io killed $r29, 16, debug-location !21 :: (load (s64) from %fixed-stack.0)165 }166 $d15 = L4_return killed $r30, implicit-def $pc, implicit-def $r29, implicit killed $framekey, implicit-def dead $pc, implicit $d8, implicit $d9, implicit $d10, implicit $d11, implicit $d12, implicit $d13, debug-location !21167 168...169 170# Verify that call site entries are emitted for all three parameters.171# Previously the code that's looking for instructions to describe parameters172# with would stop when reaching the bundle header for the bundled call,173# resulting in $r0 and $r1 not being described.174#175# Please note that at the time of creating this test the Hexagon target did not176# support call site information, so the "callSites" array has been manually177# added.178 179# CHECK: DW_TAG_GNU_call_site_parameter180# CHECK-NEXT: DW_AT_location (DW_OP_reg2 R2)181# CHECK-NEXT: DW_AT_GNU_call_site_value (DW_OP_breg29 R29+4, DW_OP_deref_size 0x4)182 183# CHECK: DW_TAG_GNU_call_site_parameter184# CHECK-NEXT: DW_AT_location (DW_OP_reg1 R1)185# CHECK-NEXT: DW_AT_GNU_call_site_value (DW_OP_breg29 R29+8, DW_OP_deref_size 0x4)186 187# CHECK: DW_TAG_GNU_call_site_parameter188# CHECK-NEXT: DW_AT_location (DW_OP_reg0 R0)189# CHECK-NEXT: DW_AT_GNU_call_site_value (DW_OP_breg29 R29+12, DW_OP_deref_size 0x4)190