| # We do not support call site parameters when the machine instructions loading a value |
| # into the forwarding register has a memory operand and multiple defs. |
| # The generated code was modified a bit in order to have the scenario. |
| # |
| # RUN: llc -emit-call-site-info -debug-entry-values -start-after=machineverifier -filetype=obj %s -o - \ |
| # RUN: | llvm-dwarfdump - | FileCheck %s --implicit-check-not=DW_TAG_GNU_call_site_parameter |
| # |
| # Command: clang -g -O2 -Xclang -femit-debug-entry-values test.c |
| # -mllvm -stop-before=machineverifier -o test.mir -c |
| # extern void callee(int); |
| # extern int y; |
| # |
| # #define FORCE_SPILL() \ |
| # asm volatile("" \ |
| # : \ |
| # : \ |
| # : "rax", "rbx", "rcx", "rdx", "rsi", "rdi", "rbp", "r8", "r9", \ |
| # "r10", "r11", "r12", "r13", "r14", "r15") |
| # |
| # __attribute__((disable_tail_calls)) void caller(int x) { |
| # FORCE_SPILL(); |
| # x = x % y; |
| # callee(x); |
| # } |
| # |
| --- | |
| ; ModuleID = 'test.c' |
| source_filename = "test.c" |
| target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| @y = external dso_local local_unnamed_addr global i32, align 4 |
| |
| ; Function Attrs: nounwind uwtable |
| define dso_local void @caller(i32 %x) local_unnamed_addr !dbg !12 { |
| entry: |
| call void @llvm.dbg.value(metadata i32 %x, metadata !14, metadata !DIExpression()), !dbg !15 |
| call void asm sideeffect "", "~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15},~{dirflag},~{fpsr},~{flags}"(), !dbg !16, !srcloc !17 |
| %0 = load i32, i32* @y, align 4, !dbg !18 |
| %rem = srem i32 %x, %0, !dbg !18 |
| call void @llvm.dbg.value(metadata i32 %rem, metadata !14, metadata !DIExpression()), !dbg !15 |
| call void @callee(i32 %rem), !dbg !18 |
| ret void, !dbg !18 |
| } |
| |
| declare !dbg !4 dso_local void @callee(i32) local_unnamed_addr |
| |
| ; Function Attrs: nounwind readnone speculatable willreturn |
| declare void @llvm.dbg.value(metadata, metadata, metadata) |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!8, !9, !10} |
| !llvm.ident = !{!11} |
| |
| !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) |
| !1 = !DIFile(filename: "test.c", directory: "/") |
| !2 = !{} |
| !3 = !{!4} |
| !4 = !DISubprogram(name: "callee", scope: !1, file: !1, line: 1, type: !5, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2) |
| !5 = !DISubroutineType(types: !6) |
| !6 = !{null, !7} |
| !7 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !8 = !{i32 7, !"Dwarf Version", i32 4} |
| !9 = !{i32 2, !"Debug Info Version", i32 3} |
| !10 = !{i32 1, !"wchar_size", i32 4} |
| !11 = !{!"clang version 11.0.0"} |
| !12 = distinct !DISubprogram(name: "caller", scope: !1, file: !1, line: 11, type: !5, scopeLine: 11, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !13) |
| !13 = !{!14} |
| !14 = !DILocalVariable(name: "x", arg: 1, scope: !12, file: !1, line: 11, type: !7) |
| !15 = !DILocation(line: 0, scope: !12) |
| !16 = !DILocation(line: 12, column: 4, scope: !12) |
| !17 = !{i32 -2147471651} |
| !18 = !DILocation(line: 13, column: 12, scope: !12) |
| |
| ... |
| --- |
| name: caller |
| alignment: 16 |
| stack: |
| - { id: 0, name: '', type: spill-slot, offset: -60, size: 4, alignment: 4, |
| stack-id: default, callee-saved-register: '', callee-saved-restored: true, |
| debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } |
| callSites: |
| - { bb: 0, offset: 30, fwdArgRegs: |
| - { arg: 0, reg: '$edi' } } |
| body: | |
| bb.0.entry: |
| liveins: $edi, $rbp, $r15, $r14, $r13, $r12, $rbx |
| |
| DBG_VALUE $edi, $noreg, !14, !DIExpression(), debug-location !15 |
| frame-setup PUSH64r killed $rbp, implicit-def $rsp, implicit $rsp |
| CFI_INSTRUCTION def_cfa_offset 16 |
| frame-setup PUSH64r killed $r15, implicit-def $rsp, implicit $rsp |
| CFI_INSTRUCTION def_cfa_offset 24 |
| frame-setup PUSH64r killed $r14, implicit-def $rsp, implicit $rsp |
| CFI_INSTRUCTION def_cfa_offset 32 |
| frame-setup PUSH64r killed $r13, implicit-def $rsp, implicit $rsp |
| CFI_INSTRUCTION def_cfa_offset 40 |
| frame-setup PUSH64r killed $r12, implicit-def $rsp, implicit $rsp |
| CFI_INSTRUCTION def_cfa_offset 48 |
| frame-setup PUSH64r killed $rbx, implicit-def $rsp, implicit $rsp |
| CFI_INSTRUCTION def_cfa_offset 56 |
| frame-setup PUSH64r undef $rax, implicit-def $rsp, implicit $rsp |
| CFI_INSTRUCTION def_cfa_offset 64 |
| CFI_INSTRUCTION offset $rbx, -56 |
| CFI_INSTRUCTION offset $r12, -48 |
| CFI_INSTRUCTION offset $r13, -40 |
| CFI_INSTRUCTION offset $r14, -32 |
| CFI_INSTRUCTION offset $r15, -24 |
| CFI_INSTRUCTION offset $rbp, -16 |
| MOV32mr $rsp, 1, $noreg, 4, $noreg, $edi :: (store 4 into %stack.0) |
| DBG_VALUE $rsp, 0, !14, !DIExpression(DW_OP_plus_uconst, 4), debug-location !15 |
| INLINEASM &"", 1, 12, implicit-def dead early-clobber $rax, 12, implicit-def dead early-clobber $rbx, 12, implicit-def dead early-clobber $rcx, 12, implicit-def dead early-clobber $rdx, 12, implicit-def dead early-clobber $rsi, 12, implicit-def dead early-clobber $rdi, 12, implicit-def dead early-clobber $rbp, 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 $df, 12, implicit-def early-clobber $fpsw, 12, implicit-def dead early-clobber $eflags, !17, debug-location !16 |
| $eax = MOV32rm $rsp, 1, $noreg, 4, $noreg :: (load 4 from %stack.0) |
| DBG_VALUE $eax, $noreg, !14, !DIExpression(), debug-location !15 |
| CDQ implicit-def $eax, implicit-def $edx, implicit $eax, debug-location !18 |
| DIV64m $rsp, 1, $noreg, 24, $noreg, implicit-def dead $rax, implicit-def $rdx, implicit-def dead $eflags, implicit $rax, implicit $rdx, debug-location !18 :: (load 8 from %stack.0) |
| $edi = MOV32rr $edx, debug-location !18 |
| DBG_VALUE $edi, $noreg, !14, !DIExpression(), debug-location !15 |
| CALL64pcrel32 @callee, csr_64, implicit $rsp, implicit $ssp, implicit $edi, implicit-def $rsp, implicit-def $ssp, debug-location !18 |
| $rsp = frame-destroy ADD64ri8 $rsp, 8, implicit-def dead $eflags, debug-location !18 |
| CFI_INSTRUCTION def_cfa_offset 56, debug-location !18 |
| $rbx = frame-destroy POP64r implicit-def $rsp, implicit $rsp, debug-location !18 |
| CFI_INSTRUCTION def_cfa_offset 48, debug-location !18 |
| $r12 = frame-destroy POP64r implicit-def $rsp, implicit $rsp, debug-location !18 |
| CFI_INSTRUCTION def_cfa_offset 40, debug-location !18 |
| $r13 = frame-destroy POP64r implicit-def $rsp, implicit $rsp, debug-location !18 |
| CFI_INSTRUCTION def_cfa_offset 32, debug-location !18 |
| $r14 = frame-destroy POP64r implicit-def $rsp, implicit $rsp, debug-location !18 |
| CFI_INSTRUCTION def_cfa_offset 24, debug-location !18 |
| $r15 = frame-destroy POP64r implicit-def $rsp, implicit $rsp, debug-location !18 |
| CFI_INSTRUCTION def_cfa_offset 16, debug-location !18 |
| $rbp = frame-destroy POP64r implicit-def $rsp, implicit $rsp, debug-location !18 |
| CFI_INSTRUCTION def_cfa_offset 8, debug-location !18 |
| RETQ debug-location !18 |
| |
| ... |
