1 # RUN: llc %s -run-pass=x86-codegen -o - -experimental-debug-variable-locations | FileCheck %s --implicit-check-not=debug-instr-number
3 # The x87 FP instructions below have debug instr numbers attached -- but the
4 # operands get rewritten when it's converted to stack-form. Rather than trying
5 # to recover from this, drop any instruction numbers.
7 ## We shouldn't drop numbers from _every_ call though:
8 # CHECK: CALLpcrel32 @ext, csr_32, implicit $esp, implicit $ssp, implicit-def $esp, implicit-def $ssp, debug-instr-number 101,
10 # Original program, command line 'clang ./test.c -O2 -g -m32 -o out.o -c'
14 # long double glob = 1.234;
16 # long double foo(long double a, long double b, long double c) {
29 source_filename = "./test.c"
30 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"
31 target triple = "i386-unknown-linux-gnu"
33 @glob = dso_local local_unnamed_addr global x86_fp80 0xK3FFF9DF3B645A1CAC000, align 4, !dbg !0
35 ; Function Attrs: nounwind
36 define dso_local x86_fp80 @foo(x86_fp80 %a, x86_fp80 %b, x86_fp80 %c) local_unnamed_addr !dbg !13 {
38 call void @llvm.dbg.value(metadata x86_fp80 %a, metadata !17, metadata !DIExpression()), !dbg !20
39 call void @llvm.dbg.value(metadata x86_fp80 %b, metadata !18, metadata !DIExpression()), !dbg !20
40 call void @llvm.dbg.value(metadata x86_fp80 %c, metadata !19, metadata !DIExpression()), !dbg !20
41 %add = fadd x86_fp80 %a, %b, !dbg !21
42 call void @llvm.dbg.value(metadata x86_fp80 %add, metadata !17, metadata !DIExpression()), !dbg !20
43 call void @llvm.dbg.value(metadata x86_fp80 undef, metadata !18, metadata !DIExpression()), !dbg !20
44 %call = tail call x86_fp80 bitcast (x86_fp80 (...)* @ext to x86_fp80 ()*)() #3, !dbg !22
45 %mul = fmul x86_fp80 %add, %call, !dbg !23
46 call void @llvm.dbg.value(metadata x86_fp80 %mul, metadata !17, metadata !DIExpression()), !dbg !20
47 %call2 = tail call x86_fp80 bitcast (x86_fp80 (...)* @ext to x86_fp80 ()*)() #3, !dbg !24
48 call void @llvm.dbg.value(metadata x86_fp80 undef, metadata !18, metadata !DIExpression()), !dbg !20
49 %cmp = fcmp olt x86_fp80 %mul, 0xK4001A000000000000000, !dbg !25
50 %0 = load x86_fp80, x86_fp80* @glob, align 4, !dbg !27
51 %add3 = fadd x86_fp80 %mul, %0, !dbg !27
52 %a.addr.0 = select i1 %cmp, x86_fp80 %add3, x86_fp80 %mul, !dbg !27
53 %add1 = fadd x86_fp80 %b, %c, !dbg !28
54 call void @llvm.dbg.value(metadata x86_fp80 %add1, metadata !18, metadata !DIExpression()), !dbg !20
55 %div = fdiv x86_fp80 %add1, %call2, !dbg !29
56 call void @llvm.dbg.value(metadata x86_fp80 %div, metadata !18, metadata !DIExpression()), !dbg !20
57 call void @llvm.dbg.value(metadata x86_fp80 %a.addr.0, metadata !17, metadata !DIExpression()), !dbg !20
58 %sub = fsub x86_fp80 %a.addr.0, %div, !dbg !30
59 ret x86_fp80 %sub, !dbg !31
62 declare dso_local x86_fp80 @ext(...) local_unnamed_addr
64 ; Function Attrs: nofree nosync nounwind readnone speculatable willreturn
65 declare void @llvm.dbg.value(metadata, metadata, metadata)
68 !llvm.module.flags = !{!8, !9, !10, !11}
71 !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
72 !1 = distinct !DIGlobalVariable(name: "glob", scope: !2, file: !6, line: 3, type: !7, isLocal: false, isDefinition: true)
73 !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)
74 !3 = !DIFile(filename: "test.c", directory: "/fast/fs/build34llvm4")
77 !6 = !DIFile(filename: "./test.c", directory: ".")
78 !7 = !DIBasicType(name: "long double", size: 96, encoding: DW_ATE_float)
79 !8 = !{i32 1, !"NumRegisterParameters", i32 0}
80 !9 = !{i32 7, !"Dwarf Version", i32 4}
81 !10 = !{i32 2, !"Debug Info Version", i32 3}
82 !11 = !{i32 1, !"wchar_size", i32 4}
84 !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)
85 !14 = !DISubroutineType(types: !15)
86 !15 = !{!7, !7, !7, !7}
87 !16 = !{!17, !18, !19}
88 !17 = !DILocalVariable(name: "a", arg: 1, scope: !13, file: !6, line: 5, type: !7)
89 !18 = !DILocalVariable(name: "b", arg: 2, scope: !13, file: !6, line: 5, type: !7)
90 !19 = !DILocalVariable(name: "c", arg: 3, scope: !13, file: !6, line: 5, type: !7)
91 !20 = !DILocation(line: 0, scope: !13)
92 !21 = !DILocation(line: 6, column: 5, scope: !13)
93 !22 = !DILocation(line: 8, column: 8, scope: !13)
94 !23 = !DILocation(line: 8, column: 5, scope: !13)
95 !24 = !DILocation(line: 9, column: 8, scope: !13)
96 !25 = !DILocation(line: 10, column: 9, scope: !26)
97 !26 = distinct !DILexicalBlock(scope: !13, file: !6, line: 10, column: 7)
98 !27 = !DILocation(line: 10, column: 7, scope: !13)
99 !28 = !DILocation(line: 7, column: 5, scope: !13)
100 !29 = !DILocation(line: 9, column: 5, scope: !13)
101 !30 = !DILocation(line: 12, column: 12, scope: !13)
102 !31 = !DILocation(line: 12, column: 3, scope: !13)
108 tracksRegLiveness: true
113 - { id: 0, type: default, offset: 24, size: 10, alignment: 8, stack-id: default,
114 isImmutable: true, isAliased: false, callee-saved-register: '', callee-saved-restored: true,
115 debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
116 - { id: 1, type: default, offset: 12, size: 10, alignment: 4, stack-id: default,
117 isImmutable: true, isAliased: false, callee-saved-register: '', callee-saved-restored: true,
118 debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
119 - { id: 2, type: default, offset: 0, size: 10, alignment: 16, stack-id: default,
120 isImmutable: true, isAliased: false, callee-saved-register: '', callee-saved-restored: true,
121 debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
123 - { id: 0, name: '', type: spill-slot, offset: 0, size: 10, alignment: 4,
124 stack-id: default, callee-saved-register: '', callee-saved-restored: true,
125 debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
126 - { id: 1, name: '', type: spill-slot, offset: 0, size: 10, alignment: 4,
127 stack-id: default, callee-saved-register: '', callee-saved-restored: true,
128 debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
129 - { id: 2, name: '', type: spill-slot, offset: 0, size: 10, alignment: 4,
130 stack-id: default, callee-saved-register: '', callee-saved-restored: true,
131 debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
133 debugValueSubstitutions: []
136 value: 'float 5.000000e+00'
138 isTargetSpecific: false
139 machineFunctionInfo: {}
142 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)
143 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)
144 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)
145 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)
146 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)
147 renamable $fp0 = nofpexcept ADD_Fp80 killed renamable $fp0, killed renamable $fp1, implicit-def dead $fpsw, implicit $fpcw, debug-instr-number 6, debug-location !21
148 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)
149 ADJCALLSTACKDOWN32 0, 0, 0, implicit-def dead $esp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $esp, implicit $ssp, debug-location !22
151 ; This identical call (to the one below) does not touch the FP registers at
152 ; all. Therefore, it shouldn't have any debug instructions dropped.
153 CALLpcrel32 @ext, csr_32, implicit $esp, implicit $ssp, implicit-def $esp, implicit-def $ssp, debug-instr-number 101, debug-location !22
155 ; Original call: this should have it's location dropped, as it touches the
157 CALLpcrel32 @ext, csr_32, implicit $esp, implicit $ssp, implicit-def $esp, implicit-def $ssp, implicit-def $fp0, debug-instr-number 100, debug-location !22
160 ADJCALLSTACKUP32 0, 0, implicit-def dead $esp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $esp, implicit $ssp, debug-location !22
161 renamable $fp1 = LD_Fp80m %stack.2, 1, $noreg, 0, $noreg, implicit-def $fpsw, implicit $fpcw :: (load (s80) from %stack.2, align 4)
162 renamable $fp0 = nofpexcept MUL_Fp80 killed renamable $fp1, killed renamable $fp0, implicit-def dead $fpsw, implicit $fpcw, debug-instr-number 8, debug-location !23
163 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)
164 ADJCALLSTACKDOWN32 0, 0, 0, implicit-def dead $esp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $esp, implicit $ssp, debug-location !24
165 CALLpcrel32 @ext, csr_32, implicit $esp, implicit $ssp, implicit-def $esp, implicit-def $ssp, implicit-def $fp0, debug-location !24
166 ADJCALLSTACKUP32 0, 0, implicit-def dead $esp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $esp, implicit $ssp, debug-location !24
167 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)
168 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)
169 nofpexcept UCOM_FpIr80 killed renamable $fp1, renamable $fp2, implicit-def $eflags, implicit-def dead $fpsw, implicit $fpcw, debug-instr-number 12, debug-location !25
170 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)
171 renamable $fp1 = nofpexcept ADD_Fp80 renamable $fp2, killed renamable $fp1, implicit-def dead $fpsw, implicit $fpcw, debug-instr-number 14, debug-location !27
172 renamable $fp2 = CMOVNBE_Fp80 killed renamable $fp2, killed renamable $fp1, implicit-def dead $fpsw, implicit killed $eflags, debug-instr-number 15, debug-location !27
173 renamable $fp3 = COPY killed renamable $fp2
174 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)
175 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)
176 renamable $fp1 = nofpexcept ADD_Fp80 killed renamable $fp2, killed renamable $fp1, implicit-def dead $fpsw, implicit $fpcw, debug-instr-number 18, debug-location !28
177 renamable $fp0 = nofpexcept DIV_Fp80 killed renamable $fp1, killed renamable $fp0, implicit-def dead $fpsw, implicit $fpcw, debug-instr-number 19, debug-location !29
178 renamable $fp0 = nofpexcept SUB_Fp80 killed renamable $fp3, killed renamable $fp0, implicit-def dead $fpsw, implicit $fpcw, debug-instr-number 20, debug-location !30
180 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`)
181 RET 0, killed renamable $fp0, debug-location !31