1 ; RUN: llc -regalloc=greedy -verify-coalescing -mtriple=x86_64-unknown-linux-gnu < %s 2 ; Check the live range is updated properly after register coalescing. 3 4 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 5 6 @.str = internal unnamed_addr constant { [17 x i8], [47 x i8] } { [17 x i8] c"0123456789ABCDEF\00", [47 x i8] zeroinitializer }, align 32 7 @b = common local_unnamed_addr global i32 0, align 4 8 @a = common local_unnamed_addr global i32* null, align 8 9 @__sancov_gen_cov = private global [9 x i32] zeroinitializer 10 11 ; Function Attrs: nounwind sanitize_address 12 define void @fn2(i8* %p1) local_unnamed_addr #0 { 13 entry: 14 %0 = load atomic i32, i32* inttoptr (i64 add (i64 ptrtoint ([9 x i32]* @__sancov_gen_cov to i64), i64 4) to i32*) monotonic, align 4 15 %1 = icmp sge i32 0, %0 16 br i1 %1, label %2, label %3 17 18 ; <label>:2: ; preds = %entry 19 call void @__sanitizer_cov(i32* inttoptr (i64 add (i64 ptrtoint ([9 x i32]* @__sancov_gen_cov to i64), i64 4) to i32*)) 20 call void asm sideeffect "", ""() 21 br label %3 22 23 ; <label>:3: ; preds = %entry, %2 24 br label %while.cond.outer 25 26 while.cond.outer: ; preds = %75, %3 27 %e.0.ph = phi i8* [ %e.058, %75 ], [ undef, %3 ] 28 %c.0.ph = phi i32* [ %c.059, %75 ], [ undef, %3 ] 29 %p1.addr.0.ph = phi i8* [ %incdec.ptr60, %75 ], [ %p1, %3 ] 30 %4 = ptrtoint i8* %p1.addr.0.ph to i64 31 %5 = lshr i64 %4, 3 32 %6 = add i64 %5, 2147450880 33 %7 = inttoptr i64 %6 to i8* 34 %8 = load i8, i8* %7 35 %9 = icmp ne i8 %8, 0 36 br i1 %9, label %10, label %15 37 38 ; <label>:10: ; preds = %while.cond.outer 39 %11 = and i64 %4, 7 40 %12 = trunc i64 %11 to i8 41 %13 = icmp sge i8 %12, %8 42 br i1 %13, label %14, label %15 43 44 ; <label>:14: ; preds = %10 45 call void @__asan_report_load1(i64 %4) 46 call void asm sideeffect "", ""() 47 unreachable 48 49 ; <label>:15: ; preds = %10, %while.cond.outer 50 %16 = load i8, i8* %p1.addr.0.ph, align 1 51 call void @__sanitizer_cov_trace_cmp1(i8 %16, i8 0) 52 %cmp57 = icmp eq i8 %16, 0 53 br i1 %cmp57, label %while.cond.outer.enoent.loopexit96_crit_edge, label %while.body.preheader 54 55 while.cond.outer.enoent.loopexit96_crit_edge: ; preds = %15 56 %17 = load atomic i32, i32* inttoptr (i64 add (i64 ptrtoint ([9 x i32]* @__sancov_gen_cov to i64), i64 8) to i32*) monotonic, align 4 57 %18 = icmp sge i32 0, %17 58 br i1 %18, label %19, label %20 59 60 ; <label>:19: ; preds = %while.cond.outer.enoent.loopexit96_crit_edge 61 call void @__sanitizer_cov(i32* inttoptr (i64 add (i64 ptrtoint ([9 x i32]* @__sancov_gen_cov to i64), i64 8) to i32*)) 62 call void asm sideeffect "", ""() 63 br label %20 64 65 ; <label>:20: ; preds = %while.cond.outer.enoent.loopexit96_crit_edge, %19 66 br label %enoent.loopexit96 67 68 while.body.preheader: ; preds = %15 69 br label %while.body 70 71 while.body: ; preds = %56, %while.body.preheader 72 %21 = phi i8 [ %52, %56 ], [ %16, %while.body.preheader ] 73 %p1.addr.0.ph.pn = phi i8* [ %incdec.ptr60, %56 ], [ %p1.addr.0.ph, %while.body.preheader ] 74 %c.059 = phi i32* [ %incdec.ptr18, %56 ], [ %c.0.ph, %while.body.preheader ] 75 %e.058 = phi i8* [ %incdec.ptr60, %56 ], [ %e.0.ph, %while.body.preheader ] 76 %incdec.ptr60 = getelementptr inbounds i8, i8* %p1.addr.0.ph.pn, i64 1 77 %conv = sext i8 %21 to i32 78 %call = tail call i32 (i8*, i32, ...) bitcast (i32 (...)* @fn3 to i32 (i8*, i32, ...)*)(i8* getelementptr inbounds ({ [17 x i8], [47 x i8] }, { [17 x i8], [47 x i8] }* @.str, i32 0, i32 0, i64 0), i32 %conv) #2 79 call void @__sanitizer_cov_trace_cmp4(i32 %call, i32 0) 80 %tobool = icmp eq i32 %call, 0 81 br i1 %tobool, label %if.end5, label %cleanup 82 83 if.end5: ; preds = %while.body 84 call void @__sanitizer_cov_trace_cmp1(i8 %21, i8 58) 85 %cmp6 = icmp eq i8 %21, 58 86 br i1 %cmp6, label %if.end14, label %cleanup.thread40 87 88 if.end14: ; preds = %if.end5 89 %22 = load i8, i8* inttoptr (i64 add (i64 lshr (i64 ptrtoint (i32** @a to i64), i64 3), i64 2147450880) to i8*) 90 %23 = icmp ne i8 %22, 0 91 br i1 %23, label %24, label %25 92 93 ; <label>:24: ; preds = %if.end14 94 call void @__asan_report_load8(i64 ptrtoint (i32** @a to i64)) 95 call void asm sideeffect "", ""() 96 unreachable 97 98 ; <label>:25: ; preds = %if.end14 99 %26 = load i32*, i32** @a, align 8 100 %tobool15 = icmp eq i32* %26, null 101 br i1 %tobool15, label %cleanup.thread39, label %cleanup23.loopexit 102 103 cleanup.thread39: ; preds = %25 104 %incdec.ptr18 = getelementptr inbounds i32, i32* %c.059, i64 1 105 %27 = ptrtoint i32* %c.059 to i64 106 %28 = lshr i64 %27, 3 107 %29 = add i64 %28, 2147450880 108 %30 = inttoptr i64 %29 to i8* 109 %31 = load i8, i8* %30 110 %32 = icmp ne i8 %31, 0 111 br i1 %32, label %33, label %39 112 113 ; <label>:33: ; preds = %cleanup.thread39 114 %34 = and i64 %27, 7 115 %35 = add i64 %34, 3 116 %36 = trunc i64 %35 to i8 117 %37 = icmp sge i8 %36, %31 118 br i1 %37, label %38, label %39 119 120 ; <label>:38: ; preds = %33 121 call void @__asan_report_store4(i64 %27) 122 call void asm sideeffect "", ""() 123 unreachable 124 125 ; <label>:39: ; preds = %33, %cleanup.thread39 126 store i32 0, i32* %c.059, align 4 127 %40 = ptrtoint i8* %incdec.ptr60 to i64 128 %41 = lshr i64 %40, 3 129 %42 = add i64 %41, 2147450880 130 %43 = inttoptr i64 %42 to i8* 131 %44 = load i8, i8* %43 132 %45 = icmp ne i8 %44, 0 133 br i1 %45, label %46, label %51 134 135 ; <label>:46: ; preds = %39 136 %47 = and i64 %40, 7 137 %48 = trunc i64 %47 to i8 138 %49 = icmp sge i8 %48, %44 139 br i1 %49, label %50, label %51 140 141 ; <label>:50: ; preds = %46 142 call void @__asan_report_load1(i64 %40) 143 call void asm sideeffect "", ""() 144 unreachable 145 146 ; <label>:51: ; preds = %46, %39 147 %52 = load i8, i8* %incdec.ptr60, align 1 148 call void @__sanitizer_cov_trace_cmp1(i8 %52, i8 0) 149 %cmp = icmp eq i8 %52, 0 150 br i1 %cmp, label %enoent.loopexit, label %cleanup.thread39.while.body_crit_edge 151 152 cleanup.thread39.while.body_crit_edge: ; preds = %51 153 %53 = load atomic i32, i32* inttoptr (i64 add (i64 ptrtoint ([9 x i32]* @__sancov_gen_cov to i64), i64 12) to i32*) monotonic, align 4 154 %54 = icmp sge i32 0, %53 155 br i1 %54, label %55, label %56 156 157 ; <label>:55: ; preds = %cleanup.thread39.while.body_crit_edge 158 call void @__sanitizer_cov(i32* inttoptr (i64 add (i64 ptrtoint ([9 x i32]* @__sancov_gen_cov to i64), i64 12) to i32*)) 159 call void asm sideeffect "", ""() 160 br label %56 161 162 ; <label>:56: ; preds = %cleanup.thread39.while.body_crit_edge, %55 163 br label %while.body 164 165 cleanup.thread40: ; preds = %if.end5 166 %57 = load atomic i32, i32* inttoptr (i64 add (i64 ptrtoint ([9 x i32]* @__sancov_gen_cov to i64), i64 16) to i32*) monotonic, align 4 167 %58 = icmp sge i32 0, %57 168 br i1 %58, label %59, label %60 169 170 ; <label>:59: ; preds = %cleanup.thread40 171 call void @__sanitizer_cov(i32* inttoptr (i64 add (i64 ptrtoint ([9 x i32]* @__sancov_gen_cov to i64), i64 16) to i32*)) 172 call void asm sideeffect "", ""() 173 br label %60 174 175 ; <label>:60: ; preds = %cleanup.thread40, %59 176 %call20 = tail call i32 (i8*, ...) bitcast (i32 (...)* @fn4 to i32 (i8*, ...)*)(i8* %e.058) #2 177 br label %enoent 178 179 cleanup: ; preds = %while.body 180 %61 = load i8, i8* inttoptr (i64 add (i64 lshr (i64 ptrtoint (i32* @b to i64), i64 3), i64 2147450880) to i8*) 181 %62 = icmp ne i8 %61, 0 182 br i1 %62, label %63, label %66 183 184 ; <label>:63: ; preds = %cleanup 185 %64 = icmp sge i8 trunc (i64 add (i64 and (i64 ptrtoint (i32* @b to i64), i64 7), i64 3) to i8), %61 186 br i1 %64, label %65, label %66 187 188 ; <label>:65: ; preds = %63 189 call void @__asan_report_load4(i64 ptrtoint (i32* @b to i64)) 190 call void asm sideeffect "", ""() 191 unreachable 192 193 ; <label>:66: ; preds = %63, %cleanup 194 %67 = load i32, i32* @b, align 4 195 call void @__sanitizer_cov_trace_cmp4(i32 %67, i32 0) 196 %tobool3 = icmp eq i32 %67, 0 197 br i1 %tobool3, label %cleanup.while.cond.outer_crit_edge, label %cleanup.enoent.loopexit96_crit_edge 198 199 cleanup.enoent.loopexit96_crit_edge: ; preds = %66 200 %68 = load atomic i32, i32* inttoptr (i64 add (i64 ptrtoint ([9 x i32]* @__sancov_gen_cov to i64), i64 20) to i32*) monotonic, align 4 201 %69 = icmp sge i32 0, %68 202 br i1 %69, label %70, label %71 203 204 ; <label>:70: ; preds = %cleanup.enoent.loopexit96_crit_edge 205 call void @__sanitizer_cov(i32* inttoptr (i64 add (i64 ptrtoint ([9 x i32]* @__sancov_gen_cov to i64), i64 20) to i32*)) 206 call void asm sideeffect "", ""() 207 br label %71 208 209 ; <label>:71: ; preds = %cleanup.enoent.loopexit96_crit_edge, %70 210 br label %enoent.loopexit96 211 212 cleanup.while.cond.outer_crit_edge: ; preds = %66 213 %72 = load atomic i32, i32* inttoptr (i64 add (i64 ptrtoint ([9 x i32]* @__sancov_gen_cov to i64), i64 24) to i32*) monotonic, align 4 214 %73 = icmp sge i32 0, %72 215 br i1 %73, label %74, label %75 216 217 ; <label>:74: ; preds = %cleanup.while.cond.outer_crit_edge 218 call void @__sanitizer_cov(i32* inttoptr (i64 add (i64 ptrtoint ([9 x i32]* @__sancov_gen_cov to i64), i64 24) to i32*)) 219 call void asm sideeffect "", ""() 220 br label %75 221 222 ; <label>:75: ; preds = %cleanup.while.cond.outer_crit_edge, %74 223 br label %while.cond.outer 224 225 enoent.loopexit: ; preds = %51 226 %76 = load atomic i32, i32* inttoptr (i64 add (i64 ptrtoint ([9 x i32]* @__sancov_gen_cov to i64), i64 28) to i32*) monotonic, align 4 227 %77 = icmp sge i32 0, %76 228 br i1 %77, label %78, label %79 229 230 ; <label>:78: ; preds = %enoent.loopexit 231 call void @__sanitizer_cov(i32* inttoptr (i64 add (i64 ptrtoint ([9 x i32]* @__sancov_gen_cov to i64), i64 28) to i32*)) 232 call void asm sideeffect "", ""() 233 br label %79 234 235 ; <label>:79: ; preds = %enoent.loopexit, %78 236 br label %enoent 237 238 enoent.loopexit96: ; preds = %71, %20 239 br label %enoent 240 241 enoent: ; preds = %enoent.loopexit96, %79, %60 242 %call22 = tail call i32* (...) @fn1() #2 243 br label %cleanup23 244 245 cleanup23.loopexit: ; preds = %25 246 %80 = load atomic i32, i32* inttoptr (i64 add (i64 ptrtoint ([9 x i32]* @__sancov_gen_cov to i64), i64 32) to i32*) monotonic, align 4 247 %81 = icmp sge i32 0, %80 248 br i1 %81, label %82, label %83 249 250 ; <label>:82: ; preds = %cleanup23.loopexit 251 call void @__sanitizer_cov(i32* inttoptr (i64 add (i64 ptrtoint ([9 x i32]* @__sancov_gen_cov to i64), i64 32) to i32*)) 252 call void asm sideeffect "", ""() 253 br label %83 254 255 ; <label>:83: ; preds = %cleanup23.loopexit, %82 256 br label %cleanup23 257 258 cleanup23: ; preds = %83, %enoent 259 ret void 260 } 261 262 declare i32 @fn3(...) local_unnamed_addr #1 263 264 declare i32 @fn4(...) local_unnamed_addr #1 265 266 declare i32* @fn1(...) local_unnamed_addr #1 267 268 declare void @__sanitizer_cov(i32*) 269 270 declare void @__sanitizer_cov_trace_cmp1(i8, i8) 271 272 declare void @__sanitizer_cov_trace_cmp4(i32, i32) 273 274 declare void @__asan_report_load1(i64) 275 276 declare void @__asan_report_load4(i64) 277 278 declare void @__asan_report_load8(i64) 279 280 declare void @__asan_report_store4(i64) 281 282
