| # RUN: llc %s -run-pass=x86-codegen -o - -experimental-debug-variable-locations | FileCheck %s --implicit-check-not=debug-instr-number |
| # |
| # The x87 FP instructions below have debug instr numbers attached -- but the |
| # operands get rewritten when it's converted to stack-form. Rather than trying |
| # to recover from this, drop any instruction numbers. |
| # |
| ## We shouldn't drop numbers from _every_ call though: |
| # CHECK: CALLpcrel32 @ext, csr_32, implicit $esp, implicit $ssp, implicit-def $esp, implicit-def $ssp, debug-instr-number 101, |
| # |
| # Original program, command line 'clang ./test.c -O2 -g -m32 -o out.o -c' |
| # |
| # long double ext(); |
| # |
| # long double glob = 1.234; |
| # |
| # long double foo(long double a, long double b, long double c) { |
| # a += b; |
| # b += c; |
| # a *= ext(); |
| # b /= ext(); |
| # if (a < 5.0) |
| # a += glob; |
| # return a - b; |
| # } |
| # |
| |
| --- | |
| ; ModuleID = 'out.ll' |
| source_filename = "./test.c" |
| target datalayout = "e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-f64:32:64-f80:32-n8:16:32-S128" |
| target triple = "i386-unknown-linux-gnu" |
| |
| @glob = dso_local local_unnamed_addr global x86_fp80 0xK3FFF9DF3B645A1CAC000, align 4, !dbg !0 |
| |
| ; Function Attrs: nounwind |
| define dso_local x86_fp80 @foo(x86_fp80 %a, x86_fp80 %b, x86_fp80 %c) local_unnamed_addr !dbg !13 { |
| entry: |
| call void @llvm.dbg.value(metadata x86_fp80 %a, metadata !17, metadata !DIExpression()), !dbg !20 |
| call void @llvm.dbg.value(metadata x86_fp80 %b, metadata !18, metadata !DIExpression()), !dbg !20 |
| call void @llvm.dbg.value(metadata x86_fp80 %c, metadata !19, metadata !DIExpression()), !dbg !20 |
| %add = fadd x86_fp80 %a, %b, !dbg !21 |
| call void @llvm.dbg.value(metadata x86_fp80 %add, metadata !17, metadata !DIExpression()), !dbg !20 |
| call void @llvm.dbg.value(metadata x86_fp80 undef, metadata !18, metadata !DIExpression()), !dbg !20 |
| %call = tail call x86_fp80 bitcast (x86_fp80 (...)* @ext to x86_fp80 ()*)() #3, !dbg !22 |
| %mul = fmul x86_fp80 %add, %call, !dbg !23 |
| call void @llvm.dbg.value(metadata x86_fp80 %mul, metadata !17, metadata !DIExpression()), !dbg !20 |
| %call2 = tail call x86_fp80 bitcast (x86_fp80 (...)* @ext to x86_fp80 ()*)() #3, !dbg !24 |
| call void @llvm.dbg.value(metadata x86_fp80 undef, metadata !18, metadata !DIExpression()), !dbg !20 |
| %cmp = fcmp olt x86_fp80 %mul, 0xK4001A000000000000000, !dbg !25 |
| %0 = load x86_fp80, x86_fp80* @glob, align 4, !dbg !27 |
| %add3 = fadd x86_fp80 %mul, %0, !dbg !27 |
| %a.addr.0 = select i1 %cmp, x86_fp80 %add3, x86_fp80 %mul, !dbg !27 |
| %add1 = fadd x86_fp80 %b, %c, !dbg !28 |
| call void @llvm.dbg.value(metadata x86_fp80 %add1, metadata !18, metadata !DIExpression()), !dbg !20 |
| %div = fdiv x86_fp80 %add1, %call2, !dbg !29 |
| call void @llvm.dbg.value(metadata x86_fp80 %div, metadata !18, metadata !DIExpression()), !dbg !20 |
| call void @llvm.dbg.value(metadata x86_fp80 %a.addr.0, metadata !17, metadata !DIExpression()), !dbg !20 |
| %sub = fsub x86_fp80 %a.addr.0, %div, !dbg !30 |
| ret x86_fp80 %sub, !dbg !31 |
| } |
| |
| declare dso_local x86_fp80 @ext(...) local_unnamed_addr |
| |
| ; Function Attrs: nofree nosync nounwind readnone speculatable willreturn |
| declare void @llvm.dbg.value(metadata, metadata, metadata) |
| |
| !llvm.dbg.cu = !{!2} |
| !llvm.module.flags = !{!8, !9, !10, !11} |
| !llvm.ident = !{!12} |
| |
| !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) |
| !1 = distinct !DIGlobalVariable(name: "glob", scope: !2, file: !6, line: 3, type: !7, isLocal: false, isDefinition: true) |
| !2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, splitDebugInlining: false, nameTableKind: None) |
| !3 = !DIFile(filename: "test.c", directory: "/fast/fs/build34llvm4") |
| !4 = !{} |
| !5 = !{!0} |
| !6 = !DIFile(filename: "./test.c", directory: ".") |
| !7 = !DIBasicType(name: "long double", size: 96, encoding: DW_ATE_float) |
| !8 = !{i32 1, !"NumRegisterParameters", i32 0} |
| !9 = !{i32 7, !"Dwarf Version", i32 4} |
| !10 = !{i32 2, !"Debug Info Version", i32 3} |
| !11 = !{i32 1, !"wchar_size", i32 4} |
| !12 = !{!"clang"} |
| !13 = distinct !DISubprogram(name: "foo", scope: !6, file: !6, line: 5, type: !14, scopeLine: 5, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !16) |
| !14 = !DISubroutineType(types: !15) |
| !15 = !{!7, !7, !7, !7} |
| !16 = !{!17, !18, !19} |
| !17 = !DILocalVariable(name: "a", arg: 1, scope: !13, file: !6, line: 5, type: !7) |
| !18 = !DILocalVariable(name: "b", arg: 2, scope: !13, file: !6, line: 5, type: !7) |
| !19 = !DILocalVariable(name: "c", arg: 3, scope: !13, file: !6, line: 5, type: !7) |
| !20 = !DILocation(line: 0, scope: !13) |
| !21 = !DILocation(line: 6, column: 5, scope: !13) |
| !22 = !DILocation(line: 8, column: 8, scope: !13) |
| !23 = !DILocation(line: 8, column: 5, scope: !13) |
| !24 = !DILocation(line: 9, column: 8, scope: !13) |
| !25 = !DILocation(line: 10, column: 9, scope: !26) |
| !26 = distinct !DILexicalBlock(scope: !13, file: !6, line: 10, column: 7) |
| !27 = !DILocation(line: 10, column: 7, scope: !13) |
| !28 = !DILocation(line: 7, column: 5, scope: !13) |
| !29 = !DILocation(line: 9, column: 5, scope: !13) |
| !30 = !DILocation(line: 12, column: 12, scope: !13) |
| !31 = !DILocation(line: 12, column: 3, scope: !13) |
| |
| ... |
| --- |
| name: foo |
| alignment: 16 |
| tracksRegLiveness: true |
| frameInfo: |
| hasCalls: true |
| fixedStack: |
| - { id: 0, type: default, offset: 24, size: 10, alignment: 8, stack-id: default, |
| isImmutable: true, isAliased: false, callee-saved-register: '', callee-saved-restored: true, |
| debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } |
| - { id: 1, type: default, offset: 12, size: 10, alignment: 4, stack-id: default, |
| isImmutable: true, isAliased: false, callee-saved-register: '', callee-saved-restored: true, |
| debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } |
| - { id: 2, type: default, offset: 0, size: 10, alignment: 16, stack-id: default, |
| isImmutable: true, isAliased: false, callee-saved-register: '', callee-saved-restored: true, |
| debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } |
| stack: |
| - { id: 0, name: '', type: spill-slot, offset: 0, size: 10, alignment: 4, |
| stack-id: default, callee-saved-register: '', callee-saved-restored: true, |
| debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } |
| - { id: 1, name: '', type: spill-slot, offset: 0, size: 10, alignment: 4, |
| stack-id: default, callee-saved-register: '', callee-saved-restored: true, |
| debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } |
| - { id: 2, name: '', type: spill-slot, offset: 0, size: 10, alignment: 4, |
| stack-id: default, callee-saved-register: '', callee-saved-restored: true, |
| debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } |
| callSites: [] |
| debugValueSubstitutions: [] |
| constants: |
| - id: 0 |
| value: 'float 5.000000e+00' |
| alignment: 4 |
| isTargetSpecific: false |
| machineFunctionInfo: {} |
| body: | |
| bb.0.entry: |
| renamable $fp0 = nofpexcept LD_Fp80m %fixed-stack.0, 1, $noreg, 0, $noreg, implicit-def dead $fpsw, implicit $fpcw, debug-instr-number 1 :: (load (s80) from %fixed-stack.0, align 8) |
| ST_FpP80m %stack.0, 1, $noreg, 0, $noreg, killed renamable $fp0, implicit-def $fpsw, implicit $fpcw, debug-instr-number 2 :: (store (s80) into %stack.0, align 4) |
| renamable $fp1 = nofpexcept LD_Fp80m %fixed-stack.1, 1, $noreg, 0, $noreg, implicit-def dead $fpsw, implicit $fpcw, debug-instr-number 3 :: (load (s80) from %fixed-stack.1, align 4) |
| ST_FpP80m %stack.1, 1, $noreg, 0, $noreg, renamable $fp1, implicit-def $fpsw, implicit $fpcw, debug-instr-number 4 :: (store (s80) into %stack.1, align 4) |
| renamable $fp0 = nofpexcept LD_Fp80m %fixed-stack.2, 1, $noreg, 0, $noreg, implicit-def dead $fpsw, implicit $fpcw, debug-instr-number 5 :: (load (s80) from %fixed-stack.2, align 16) |
| renamable $fp0 = nofpexcept ADD_Fp80 killed renamable $fp0, killed renamable $fp1, implicit-def dead $fpsw, implicit $fpcw, debug-instr-number 6, debug-location !21 |
| ST_FpP80m %stack.2, 1, $noreg, 0, $noreg, killed renamable $fp0, implicit-def $fpsw, implicit $fpcw, debug-instr-number 7 :: (store (s80) into %stack.2, align 4) |
| ADJCALLSTACKDOWN32 0, 0, 0, implicit-def dead $esp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $esp, implicit $ssp, debug-location !22 |
| |
| ; This identical call (to the one below) does not touch the FP registers at |
| ; all. Therefore, it shouldn't have any debug instructions dropped. |
| CALLpcrel32 @ext, csr_32, implicit $esp, implicit $ssp, implicit-def $esp, implicit-def $ssp, debug-instr-number 101, debug-location !22 |
| |
| ; Original call: this should have it's location dropped, as it touches the |
| ; FP stack. |
| CALLpcrel32 @ext, csr_32, implicit $esp, implicit $ssp, implicit-def $esp, implicit-def $ssp, implicit-def $fp0, debug-instr-number 100, debug-location !22 |
| |
| |
| ADJCALLSTACKUP32 0, 0, implicit-def dead $esp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $esp, implicit $ssp, debug-location !22 |
| renamable $fp1 = LD_Fp80m %stack.2, 1, $noreg, 0, $noreg, implicit-def $fpsw, implicit $fpcw :: (load (s80) from %stack.2, align 4) |
| renamable $fp0 = nofpexcept MUL_Fp80 killed renamable $fp1, killed renamable $fp0, implicit-def dead $fpsw, implicit $fpcw, debug-instr-number 8, debug-location !23 |
| ST_FpP80m %stack.2, 1, $noreg, 0, $noreg, killed renamable $fp0, implicit-def $fpsw, implicit $fpcw, debug-instr-number 9 :: (store (s80) into %stack.2, align 4) |
| ADJCALLSTACKDOWN32 0, 0, 0, implicit-def dead $esp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $esp, implicit $ssp, debug-location !24 |
| CALLpcrel32 @ext, csr_32, implicit $esp, implicit $ssp, implicit-def $esp, implicit-def $ssp, implicit-def $fp0, debug-location !24 |
| ADJCALLSTACKUP32 0, 0, implicit-def dead $esp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $esp, implicit $ssp, debug-location !24 |
| renamable $fp1 = nofpexcept LD_Fp32m80 $noreg, 1, $noreg, %const.0, $noreg, implicit-def dead $fpsw, implicit $fpcw, debug-instr-number 10 :: (load (s32) from constant-pool) |
| renamable $fp2 = LD_Fp80m %stack.2, 1, $noreg, 0, $noreg, implicit-def $fpsw, implicit $fpcw, debug-instr-number 11 :: (load (s80) from %stack.2, align 4) |
| nofpexcept UCOM_FpIr80 killed renamable $fp1, renamable $fp2, implicit-def $eflags, implicit-def dead $fpsw, implicit $fpcw, debug-instr-number 12, debug-location !25 |
| renamable $fp1 = nofpexcept LD_Fp80m $noreg, 1, $noreg, @glob, $noreg, implicit-def dead $fpsw, implicit $fpcw, debug-instr-number 13, debug-location !27 :: (dereferenceable load (s80) from @glob, align 4) |
| renamable $fp1 = nofpexcept ADD_Fp80 renamable $fp2, killed renamable $fp1, implicit-def dead $fpsw, implicit $fpcw, debug-instr-number 14, debug-location !27 |
| renamable $fp2 = CMOVNBE_Fp80 killed renamable $fp2, killed renamable $fp1, implicit-def dead $fpsw, implicit killed $eflags, debug-instr-number 15, debug-location !27 |
| renamable $fp3 = COPY killed renamable $fp2 |
| renamable $fp1 = LD_Fp80m %stack.0, 1, $noreg, 0, $noreg, implicit-def $fpsw, implicit $fpcw, debug-instr-number 16 :: (load (s80) from %stack.0, align 4) |
| renamable $fp2 = LD_Fp80m %stack.1, 1, $noreg, 0, $noreg, implicit-def $fpsw, implicit $fpcw, debug-instr-number 17 :: (load (s80) from %stack.1, align 4) |
| renamable $fp1 = nofpexcept ADD_Fp80 killed renamable $fp2, killed renamable $fp1, implicit-def dead $fpsw, implicit $fpcw, debug-instr-number 18, debug-location !28 |
| renamable $fp0 = nofpexcept DIV_Fp80 killed renamable $fp1, killed renamable $fp0, implicit-def dead $fpsw, implicit $fpcw, debug-instr-number 19, debug-location !29 |
| renamable $fp0 = nofpexcept SUB_Fp80 killed renamable $fp3, killed renamable $fp0, implicit-def dead $fpsw, implicit $fpcw, debug-instr-number 20, debug-location !30 |
| ;; Edited in: |
| renamable $fp0 = ADD_Fp64m killed renamable $fp0, killed $esp, 1, $noreg, 0, $noreg, implicit-def dead $fpsw, implicit $fpcw, debug-instr-number 21, :: (load (s64) from `i32 *undef`) |
| RET 0, killed renamable $fp0, debug-location !31 |
| |
| ... |
