1 ; RUN: llc -mtriple=x86_64-pc-linux -O2 < %s | FileCheck %s
2 ; RUN: llc -mtriple=x86_64-pc-linux -O2 -regalloc=basic < %s | FileCheck %s
3 ; Test to check .debug_loc support. This test case emits many debug_loc entries.
5 ; CHECK: .short 1 # Loc expr size
6 ; CHECK-NEXT: DW_OP_reg
10 define hidden %0 @__divsc3(float %a, float %b, float %c, float %d) nounwind readnone !dbg !1 {
12 tail call void @llvm.dbg.value(metadata float %a, i64 0, metadata !0, metadata !DIExpression()), !dbg !DILocation(scope: !1)
13 tail call void @llvm.dbg.value(metadata float %b, i64 0, metadata !11, metadata !DIExpression()), !dbg !DILocation(scope: !1)
14 tail call void @llvm.dbg.value(metadata float %c, i64 0, metadata !12, metadata !DIExpression()), !dbg !DILocation(scope: !1)
15 tail call void @llvm.dbg.value(metadata float %d, i64 0, metadata !13, metadata !DIExpression()), !dbg !DILocation(scope: !1)
16 %0 = tail call float @fabsf(float %c) nounwind readnone, !dbg !19 ; <float> [#uses=1]
17 %1 = tail call float @fabsf(float %d) nounwind readnone, !dbg !19 ; <float> [#uses=1]
18 %2 = fcmp olt float %0, %1, !dbg !19 ; <i1> [#uses=1]
19 br i1 %2, label %bb, label %bb1, !dbg !19
22 %3 = fdiv float %c, %d, !dbg !20 ; <float> [#uses=3]
23 tail call void @llvm.dbg.value(metadata float %3, i64 0, metadata !16, metadata !DIExpression()), !dbg !20
24 %4 = fmul float %3, %c, !dbg !21 ; <float> [#uses=1]
25 %5 = fadd float %4, %d, !dbg !21 ; <float> [#uses=2]
26 tail call void @llvm.dbg.value(metadata float %5, i64 0, metadata !14, metadata !DIExpression()), !dbg !21
27 %6 = fmul float %3, %a, !dbg !22 ; <float> [#uses=1]
28 %7 = fadd float %6, %b, !dbg !22 ; <float> [#uses=1]
29 %8 = fdiv float %7, %5, !dbg !22 ; <float> [#uses=1]
30 tail call void @llvm.dbg.value(metadata float %8, i64 0, metadata !17, metadata !DIExpression()), !dbg !22
31 %9 = fmul float %3, %b, !dbg !23 ; <float> [#uses=1]
32 %10 = fsub float %9, %a, !dbg !23 ; <float> [#uses=1]
33 %11 = fdiv float %10, %5, !dbg !23 ; <float> [#uses=1]
34 tail call void @llvm.dbg.value(metadata float %11, i64 0, metadata !18, metadata !DIExpression()), !dbg !23
35 br label %bb2, !dbg !23
38 %12 = fdiv float %d, %c, !dbg !24 ; <float> [#uses=3]
39 tail call void @llvm.dbg.value(metadata float %12, i64 0, metadata !16, metadata !DIExpression()), !dbg !24
40 %13 = fmul float %12, %d, !dbg !25 ; <float> [#uses=1]
41 %14 = fadd float %13, %c, !dbg !25 ; <float> [#uses=2]
42 tail call void @llvm.dbg.value(metadata float %14, i64 0, metadata !14, metadata !DIExpression()), !dbg !25
43 %15 = fmul float %12, %b, !dbg !26 ; <float> [#uses=1]
44 %16 = fadd float %15, %a, !dbg !26 ; <float> [#uses=1]
45 %17 = fdiv float %16, %14, !dbg !26 ; <float> [#uses=1]
46 tail call void @llvm.dbg.value(metadata float %17, i64 0, metadata !17, metadata !DIExpression()), !dbg !26
47 %18 = fmul float %12, %a, !dbg !27 ; <float> [#uses=1]
48 %19 = fsub float %b, %18, !dbg !27 ; <float> [#uses=1]
49 %20 = fdiv float %19, %14, !dbg !27 ; <float> [#uses=1]
50 tail call void @llvm.dbg.value(metadata float %20, i64 0, metadata !18, metadata !DIExpression()), !dbg !27
51 br label %bb2, !dbg !27
53 bb2: ; preds = %bb1, %bb
54 %y.0 = phi float [ %11, %bb ], [ %20, %bb1 ] ; <float> [#uses=5]
55 %x.0 = phi float [ %8, %bb ], [ %17, %bb1 ] ; <float> [#uses=5]
56 %21 = fcmp uno float %x.0, 0.000000e+00, !dbg !28 ; <i1> [#uses=1]
57 %22 = fcmp uno float %y.0, 0.000000e+00, !dbg !28 ; <i1> [#uses=1]
58 %or.cond = and i1 %21, %22 ; <i1> [#uses=1]
59 br i1 %or.cond, label %bb4, label %bb46, !dbg !28
62 %23 = fcmp une float %c, 0.000000e+00, !dbg !29 ; <i1> [#uses=1]
63 %24 = fcmp une float %d, 0.000000e+00, !dbg !29 ; <i1> [#uses=1]
64 %or.cond93 = or i1 %23, %24 ; <i1> [#uses=1]
65 br i1 %or.cond93, label %bb9, label %bb6, !dbg !29
68 %25 = fcmp uno float %a, 0.000000e+00, !dbg !29 ; <i1> [#uses=1]
69 %26 = fcmp uno float %b, 0.000000e+00, !dbg !29 ; <i1> [#uses=1]
70 %or.cond94 = and i1 %25, %26 ; <i1> [#uses=1]
71 br i1 %or.cond94, label %bb9, label %bb8, !dbg !29
74 %27 = tail call float @copysignf(float 0x7FF0000000000000, float %c) nounwind readnone, !dbg !30 ; <float> [#uses=2]
75 %28 = fmul float %27, %a, !dbg !30 ; <float> [#uses=1]
76 tail call void @llvm.dbg.value(metadata float %28, i64 0, metadata !17, metadata !DIExpression()), !dbg !30
77 %29 = fmul float %27, %b, !dbg !31 ; <float> [#uses=1]
78 tail call void @llvm.dbg.value(metadata float %29, i64 0, metadata !18, metadata !DIExpression()), !dbg !31
79 br label %bb46, !dbg !31
81 bb9: ; preds = %bb6, %bb4
82 %30 = fcmp ord float %a, 0.000000e+00 ; <i1> [#uses=1]
83 %31 = fsub float %a, %a, !dbg !32 ; <float> [#uses=3]
84 %32 = fcmp uno float %31, 0.000000e+00 ; <i1> [#uses=1]
85 %33 = and i1 %30, %32, !dbg !32 ; <i1> [#uses=2]
86 br i1 %33, label %bb14, label %bb11, !dbg !32
89 %34 = fcmp ord float %b, 0.000000e+00 ; <i1> [#uses=1]
90 %35 = fsub float %b, %b, !dbg !32 ; <float> [#uses=1]
91 %36 = fcmp uno float %35, 0.000000e+00 ; <i1> [#uses=1]
92 %37 = and i1 %34, %36, !dbg !32 ; <i1> [#uses=1]
93 br i1 %37, label %bb14, label %bb27, !dbg !32
95 bb14: ; preds = %bb11, %bb9
96 %38 = fsub float %c, %c, !dbg !32 ; <float> [#uses=1]
97 %39 = fcmp ord float %38, 0.000000e+00 ; <i1> [#uses=1]
98 br i1 %39, label %bb15, label %bb27, !dbg !32
100 bb15: ; preds = %bb14
101 %40 = fsub float %d, %d, !dbg !32 ; <float> [#uses=1]
102 %41 = fcmp ord float %40, 0.000000e+00 ; <i1> [#uses=1]
103 br i1 %41, label %bb16, label %bb27, !dbg !32
105 bb16: ; preds = %bb15
106 %iftmp.0.0 = select i1 %33, float 1.000000e+00, float 0.000000e+00 ; <float> [#uses=1]
107 %42 = tail call float @copysignf(float %iftmp.0.0, float %a) nounwind readnone, !dbg !33 ; <float> [#uses=2]
108 tail call void @llvm.dbg.value(metadata float %42, i64 0, metadata !0, metadata !DIExpression()), !dbg !33
109 %43 = fcmp ord float %b, 0.000000e+00 ; <i1> [#uses=1]
110 %44 = fsub float %b, %b, !dbg !34 ; <float> [#uses=1]
111 %45 = fcmp uno float %44, 0.000000e+00 ; <i1> [#uses=1]
112 %46 = and i1 %43, %45, !dbg !34 ; <i1> [#uses=1]
113 %iftmp.1.0 = select i1 %46, float 1.000000e+00, float 0.000000e+00 ; <float> [#uses=1]
114 %47 = tail call float @copysignf(float %iftmp.1.0, float %b) nounwind readnone, !dbg !34 ; <float> [#uses=2]
115 tail call void @llvm.dbg.value(metadata float %47, i64 0, metadata !11, metadata !DIExpression()), !dbg !34
116 %48 = fmul float %42, %c, !dbg !35 ; <float> [#uses=1]
117 %49 = fmul float %47, %d, !dbg !35 ; <float> [#uses=1]
118 %50 = fadd float %48, %49, !dbg !35 ; <float> [#uses=1]
119 %51 = fmul float %50, 0x7FF0000000000000, !dbg !35 ; <float> [#uses=1]
120 tail call void @llvm.dbg.value(metadata float %51, i64 0, metadata !17, metadata !DIExpression()), !dbg !35
121 %52 = fmul float %47, %c, !dbg !36 ; <float> [#uses=1]
122 %53 = fmul float %42, %d, !dbg !36 ; <float> [#uses=1]
123 %54 = fsub float %52, %53, !dbg !36 ; <float> [#uses=1]
124 %55 = fmul float %54, 0x7FF0000000000000, !dbg !36 ; <float> [#uses=1]
125 tail call void @llvm.dbg.value(metadata float %55, i64 0, metadata !18, metadata !DIExpression()), !dbg !36
126 br label %bb46, !dbg !36
128 bb27: ; preds = %bb15, %bb14, %bb11
129 %56 = fcmp ord float %c, 0.000000e+00 ; <i1> [#uses=1]
130 %57 = fsub float %c, %c, !dbg !37 ; <float> [#uses=1]
131 %58 = fcmp uno float %57, 0.000000e+00 ; <i1> [#uses=1]
132 %59 = and i1 %56, %58, !dbg !37 ; <i1> [#uses=2]
133 br i1 %59, label %bb33, label %bb30, !dbg !37
135 bb30: ; preds = %bb27
136 %60 = fcmp ord float %d, 0.000000e+00 ; <i1> [#uses=1]
137 %61 = fsub float %d, %d, !dbg !37 ; <float> [#uses=1]
138 %62 = fcmp uno float %61, 0.000000e+00 ; <i1> [#uses=1]
139 %63 = and i1 %60, %62, !dbg !37 ; <i1> [#uses=1]
140 %64 = fcmp ord float %31, 0.000000e+00 ; <i1> [#uses=1]
141 %or.cond95 = and i1 %63, %64 ; <i1> [#uses=1]
142 br i1 %or.cond95, label %bb34, label %bb46, !dbg !37
144 bb33: ; preds = %bb27
145 %.old = fcmp ord float %31, 0.000000e+00 ; <i1> [#uses=1]
146 br i1 %.old, label %bb34, label %bb46, !dbg !37
148 bb34: ; preds = %bb33, %bb30
149 %65 = fsub float %b, %b, !dbg !37 ; <float> [#uses=1]
150 %66 = fcmp ord float %65, 0.000000e+00 ; <i1> [#uses=1]
151 br i1 %66, label %bb35, label %bb46, !dbg !37
153 bb35: ; preds = %bb34
154 %iftmp.2.0 = select i1 %59, float 1.000000e+00, float 0.000000e+00 ; <float> [#uses=1]
155 %67 = tail call float @copysignf(float %iftmp.2.0, float %c) nounwind readnone, !dbg !38 ; <float> [#uses=2]
156 tail call void @llvm.dbg.value(metadata float %67, i64 0, metadata !12, metadata !DIExpression()), !dbg !38
157 %68 = fcmp ord float %d, 0.000000e+00 ; <i1> [#uses=1]
158 %69 = fsub float %d, %d, !dbg !39 ; <float> [#uses=1]
159 %70 = fcmp uno float %69, 0.000000e+00 ; <i1> [#uses=1]
160 %71 = and i1 %68, %70, !dbg !39 ; <i1> [#uses=1]
161 %iftmp.3.0 = select i1 %71, float 1.000000e+00, float 0.000000e+00 ; <float> [#uses=1]
162 %72 = tail call float @copysignf(float %iftmp.3.0, float %d) nounwind readnone, !dbg !39 ; <float> [#uses=2]
163 tail call void @llvm.dbg.value(metadata float %72, i64 0, metadata !13, metadata !DIExpression()), !dbg !39
164 %73 = fmul float %67, %a, !dbg !40 ; <float> [#uses=1]
165 %74 = fmul float %72, %b, !dbg !40 ; <float> [#uses=1]
166 %75 = fadd float %73, %74, !dbg !40 ; <float> [#uses=1]
167 %76 = fmul float %75, 0.000000e+00, !dbg !40 ; <float> [#uses=1]
168 tail call void @llvm.dbg.value(metadata float %76, i64 0, metadata !17, metadata !DIExpression()), !dbg !40
169 %77 = fmul float %67, %b, !dbg !41 ; <float> [#uses=1]
170 %78 = fmul float %72, %a, !dbg !41 ; <float> [#uses=1]
171 %79 = fsub float %77, %78, !dbg !41 ; <float> [#uses=1]
172 %80 = fmul float %79, 0.000000e+00, !dbg !41 ; <float> [#uses=1]
173 tail call void @llvm.dbg.value(metadata float %80, i64 0, metadata !18, metadata !DIExpression()), !dbg !41
174 br label %bb46, !dbg !41
176 bb46: ; preds = %bb35, %bb34, %bb33, %bb30, %bb16, %bb8, %bb2
177 %y.1 = phi float [ %80, %bb35 ], [ %y.0, %bb34 ], [ %y.0, %bb33 ], [ %y.0, %bb30 ], [ %55, %bb16 ], [ %29, %bb8 ], [ %y.0, %bb2 ] ; <float> [#uses=2]
178 %x.1 = phi float [ %76, %bb35 ], [ %x.0, %bb34 ], [ %x.0, %bb33 ], [ %x.0, %bb30 ], [ %51, %bb16 ], [ %28, %bb8 ], [ %x.0, %bb2 ] ; <float> [#uses=1]
179 %81 = fmul float %y.1, 0.000000e+00, !dbg !42 ; <float> [#uses=1]
180 %82 = fadd float %y.1, 0.000000e+00, !dbg !42 ; <float> [#uses=1]
181 %tmpr = fadd float %x.1, %81, !dbg !42 ; <float> [#uses=1]
182 %tmp89 = bitcast float %tmpr to i32 ; <i32> [#uses=1]
183 %tmp90 = zext i32 %tmp89 to i64 ; <i64> [#uses=1]
184 %tmp85 = bitcast float %82 to i32 ; <i32> [#uses=1]
185 %tmp86 = zext i32 %tmp85 to i64 ; <i64> [#uses=1]
186 %tmp87 = shl i64 %tmp86, 32 ; <i64> [#uses=1]
187 %ins = or i64 %tmp90, %tmp87 ; <i64> [#uses=1]
188 %tmp84 = bitcast i64 %ins to double ; <double> [#uses=1]
189 %mrv75 = insertvalue %0 undef, double %tmp84, 0, !dbg !42 ; <%0> [#uses=1]
190 ret %0 %mrv75, !dbg !42
193 declare float @fabsf(float)
195 declare float @copysignf(float, float) nounwind readnone
197 declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnone
200 !llvm.module.flags = !{!48}
202 !0 = !DILocalVariable(name: "a", line: 1921, arg: 1, scope: !1, file: !2, type: !9)
203 !1 = distinct !DISubprogram(name: "__divsc3", linkageName: "__divsc3", line: 1922, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, unit: !3, scopeLine: 1922, file: !45, scope: !2, type: !4, retainedNodes: !43)
204 !2 = !DIFile(filename: "libgcc2.c", directory: "/Users/yash/clean/LG.D/gcc/../../llvmgcc/gcc")
205 !3 = distinct !DICompileUnit(language: DW_LANG_C89, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", isOptimized: true, emissionKind: FullDebug, file: !45, enums: !47, retainedTypes: !47, imports: null)
206 !4 = !DISubroutineType(types: !5)
207 !5 = !{!6, !9, !9, !9, !9}
208 !6 = !DIDerivedType(tag: DW_TAG_typedef, name: "SCtype", line: 170, file: !46, scope: !7, baseType: !8)
209 !7 = !DIFile(filename: "libgcc2.h", directory: "/Users/yash/clean/LG.D/gcc/../../llvmgcc/gcc")
210 !8 = !DIBasicType(tag: DW_TAG_base_type, name: "complex float", size: 64, align: 32, encoding: DW_ATE_complex_float)
211 !9 = !DIDerivedType(tag: DW_TAG_typedef, name: "SFtype", line: 167, file: !46, scope: !7, baseType: !10)
212 !10 = !DIBasicType(tag: DW_TAG_base_type, name: "float", size: 32, align: 32, encoding: DW_ATE_float)
213 !11 = !DILocalVariable(name: "b", line: 1921, arg: 2, scope: !1, file: !2, type: !9)
214 !12 = !DILocalVariable(name: "c", line: 1921, arg: 3, scope: !1, file: !2, type: !9)
215 !13 = !DILocalVariable(name: "d", line: 1921, arg: 4, scope: !1, file: !2, type: !9)
216 !14 = !DILocalVariable(name: "denom", line: 1923, scope: !15, file: !2, type: !9)
217 !15 = distinct !DILexicalBlock(line: 1922, column: 0, file: !45, scope: !1)
218 !16 = !DILocalVariable(name: "ratio", line: 1923, scope: !15, file: !2, type: !9)
219 !17 = !DILocalVariable(name: "x", line: 1923, scope: !15, file: !2, type: !9)
220 !18 = !DILocalVariable(name: "y", line: 1923, scope: !15, file: !2, type: !9)
221 !19 = !DILocation(line: 1929, scope: !15)
222 !20 = !DILocation(line: 1931, scope: !15)
223 !21 = !DILocation(line: 1932, scope: !15)
224 !22 = !DILocation(line: 1933, scope: !15)
225 !23 = !DILocation(line: 1934, scope: !15)
226 !24 = !DILocation(line: 1938, scope: !15)
227 !25 = !DILocation(line: 1939, scope: !15)
228 !26 = !DILocation(line: 1940, scope: !15)
229 !27 = !DILocation(line: 1941, scope: !15)
230 !28 = !DILocation(line: 1946, scope: !15)
231 !29 = !DILocation(line: 1948, scope: !15)
232 !30 = !DILocation(line: 1950, scope: !15)
233 !31 = !DILocation(line: 1951, scope: !15)
234 !32 = !DILocation(line: 1953, scope: !15)
235 !33 = !DILocation(line: 1955, scope: !15)
236 !34 = !DILocation(line: 1956, scope: !15)
237 !35 = !DILocation(line: 1957, scope: !15)
238 !36 = !DILocation(line: 1958, scope: !15)
239 !37 = !DILocation(line: 1960, scope: !15)
240 !38 = !DILocation(line: 1962, scope: !15)
241 !39 = !DILocation(line: 1963, scope: !15)
242 !40 = !DILocation(line: 1964, scope: !15)
243 !41 = !DILocation(line: 1965, scope: !15)
244 !42 = !DILocation(line: 1969, scope: !15)
245 !43 = !{!0, !11, !12, !13, !14, !16, !17, !18}
246 !45 = !DIFile(filename: "libgcc2.c", directory: "/Users/yash/clean/LG.D/gcc/../../llvmgcc/gcc")
247 !46 = !DIFile(filename: "libgcc2.h", directory: "/Users/yash/clean/LG.D/gcc/../../llvmgcc/gcc")
249 !48 = !{i32 1, !"Debug Info Version", i32 3}