1 # RUN: llc %s -run-pass=x86-codegen -o - -experimental-debug-variable-locations | FileCheck %s
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 # CHECK-NOT: debug-instr-number
9 # CHECK-NOT: debug-instr-number
11 # Original program, command line 'clang ./test.c -O2 -g -m32 -o out.o -c'
15 # long double glob = 1.234;
17 # long double foo(long double a, long double b, long double c) {
30 source_filename = "./test.c"
31 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"
32 target triple = "i386-unknown-linux-gnu"
34 @glob = dso_local local_unnamed_addr global x86_fp80 0xK3FFF9DF3B645A1CAC000, align 4, !dbg !0
36 ; Function Attrs: nounwind
37 define dso_local x86_fp80 @foo(x86_fp80 %a, x86_fp80 %b, x86_fp80 %c) local_unnamed_addr !dbg !13 {
39 call void @llvm.dbg.value(metadata x86_fp80 %a, metadata !17, metadata !DIExpression()), !dbg !20
40 call void @llvm.dbg.value(metadata x86_fp80 %b, metadata !18, metadata !DIExpression()), !dbg !20
41 call void @llvm.dbg.value(metadata x86_fp80 %c, metadata !19, metadata !DIExpression()), !dbg !20
42 %add = fadd x86_fp80 %a, %b, !dbg !21
43 call void @llvm.dbg.value(metadata x86_fp80 %add, metadata !17, metadata !DIExpression()), !dbg !20
44 call void @llvm.dbg.value(metadata x86_fp80 undef, metadata !18, metadata !DIExpression()), !dbg !20
45 %call = tail call x86_fp80 bitcast (x86_fp80 (...)* @ext to x86_fp80 ()*)() #3, !dbg !22
46 %mul = fmul x86_fp80 %add, %call, !dbg !23
47 call void @llvm.dbg.value(metadata x86_fp80 %mul, metadata !17, metadata !DIExpression()), !dbg !20
48 %call2 = tail call x86_fp80 bitcast (x86_fp80 (...)* @ext to x86_fp80 ()*)() #3, !dbg !24
49 call void @llvm.dbg.value(metadata x86_fp80 undef, metadata !18, metadata !DIExpression()), !dbg !20
50 %cmp = fcmp olt x86_fp80 %mul, 0xK4001A000000000000000, !dbg !25
51 %0 = load x86_fp80, x86_fp80* @glob, align 4, !dbg !27
52 %add3 = fadd x86_fp80 %mul, %0, !dbg !27
53 %a.addr.0 = select i1 %cmp, x86_fp80 %add3, x86_fp80 %mul, !dbg !27
54 %add1 = fadd x86_fp80 %b, %c, !dbg !28
55 call void @llvm.dbg.value(metadata x86_fp80 %add1, metadata !18, metadata !DIExpression()), !dbg !20
56 %div = fdiv x86_fp80 %add1, %call2, !dbg !29
57 call void @llvm.dbg.value(metadata x86_fp80 %div, metadata !18, metadata !DIExpression()), !dbg !20
58 call void @llvm.dbg.value(metadata x86_fp80 %a.addr.0, metadata !17, metadata !DIExpression()), !dbg !20
59 %sub = fsub x86_fp80 %a.addr.0, %div, !dbg !30
60 ret x86_fp80 %sub, !dbg !31
63 declare dso_local x86_fp80 @ext(...) local_unnamed_addr
65 ; Function Attrs: nofree nosync nounwind readnone speculatable willreturn
66 declare void @llvm.dbg.value(metadata, metadata, metadata)
69 !llvm.module.flags = !{!8, !9, !10, !11}
72 !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
73 !1 = distinct !DIGlobalVariable(name: "glob", scope: !2, file: !6, line: 3, type: !7, isLocal: false, isDefinition: true)
74 !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)
75 !3 = !DIFile(filename: "test.c", directory: "/fast/fs/build34llvm4")
78 !6 = !DIFile(filename: "./test.c", directory: ".")
79 !7 = !DIBasicType(name: "long double", size: 96, encoding: DW_ATE_float)
80 !8 = !{i32 1, !"NumRegisterParameters", i32 0}
81 !9 = !{i32 7, !"Dwarf Version", i32 4}
82 !10 = !{i32 2, !"Debug Info Version", i32 3}
83 !11 = !{i32 1, !"wchar_size", i32 4}
85 !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)
86 !14 = !DISubroutineType(types: !15)
87 !15 = !{!7, !7, !7, !7}
88 !16 = !{!17, !18, !19}
89 !17 = !DILocalVariable(name: "a", arg: 1, scope: !13, file: !6, line: 5, type: !7)
90 !18 = !DILocalVariable(name: "b", arg: 2, scope: !13, file: !6, line: 5, type: !7)
91 !19 = !DILocalVariable(name: "c", arg: 3, scope: !13, file: !6, line: 5, type: !7)
92 !20 = !DILocation(line: 0, scope: !13)
93 !21 = !DILocation(line: 6, column: 5, scope: !13)
94 !22 = !DILocation(line: 8, column: 8, scope: !13)
95 !23 = !DILocation(line: 8, column: 5, scope: !13)
96 !24 = !DILocation(line: 9, column: 8, scope: !13)
97 !25 = !DILocation(line: 10, column: 9, scope: !26)
98 !26 = distinct !DILexicalBlock(scope: !13, file: !6, line: 10, column: 7)
99 !27 = !DILocation(line: 10, column: 7, scope: !13)
100 !28 = !DILocation(line: 7, column: 5, scope: !13)
101 !29 = !DILocation(line: 9, column: 5, scope: !13)
102 !30 = !DILocation(line: 12, column: 12, scope: !13)
103 !31 = !DILocation(line: 12, column: 3, scope: !13)
109 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
150 CALLpcrel32 @ext, csr_32, implicit $esp, implicit $ssp, implicit-def $esp, implicit-def $ssp, implicit-def $fp0, debug-instr-number 100, debug-location !22
151 ADJCALLSTACKUP32 0, 0, implicit-def dead $esp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $esp, implicit $ssp, debug-location !22
152 renamable $fp1 = LD_Fp80m %stack.2, 1, $noreg, 0, $noreg, implicit-def $fpsw, implicit $fpcw :: (load (s80) from %stack.2, align 4)
153 renamable $fp0 = nofpexcept MUL_Fp80 killed renamable $fp1, killed renamable $fp0, implicit-def dead $fpsw, implicit $fpcw, debug-instr-number 8, debug-location !23
154 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)
155 ADJCALLSTACKDOWN32 0, 0, 0, implicit-def dead $esp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $esp, implicit $ssp, debug-location !24
156 CALLpcrel32 @ext, csr_32, implicit $esp, implicit $ssp, implicit-def $esp, implicit-def $ssp, implicit-def $fp0, debug-location !24
157 ADJCALLSTACKUP32 0, 0, implicit-def dead $esp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $esp, implicit $ssp, debug-location !24
158 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)
159 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)
160 nofpexcept UCOM_FpIr80 killed renamable $fp1, renamable $fp2, implicit-def $eflags, implicit-def dead $fpsw, implicit $fpcw, debug-instr-number 12, debug-location !25
161 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)
162 renamable $fp1 = nofpexcept ADD_Fp80 renamable $fp2, killed renamable $fp1, implicit-def dead $fpsw, implicit $fpcw, debug-instr-number 14, debug-location !27
163 renamable $fp2 = CMOVNBE_Fp80 killed renamable $fp2, killed renamable $fp1, implicit-def dead $fpsw, implicit killed $eflags, debug-instr-number 15, debug-location !27
164 renamable $fp3 = COPY killed renamable $fp2
165 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)
166 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)
167 renamable $fp1 = nofpexcept ADD_Fp80 killed renamable $fp2, killed renamable $fp1, implicit-def dead $fpsw, implicit $fpcw, debug-instr-number 18, debug-location !28
168 renamable $fp0 = nofpexcept DIV_Fp80 killed renamable $fp1, killed renamable $fp0, implicit-def dead $fpsw, implicit $fpcw, debug-instr-number 19, debug-location !29
169 renamable $fp0 = nofpexcept SUB_Fp80 killed renamable $fp3, killed renamable $fp0, implicit-def dead $fpsw, implicit $fpcw, debug-instr-number 20, debug-location !30
171 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`)
172 RET 0, killed renamable $fp0, debug-location !31