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 4target 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 ptr null, align 8 9@__sancov_gen_cov = private global [9 x i32] zeroinitializer 10 11; Function Attrs: nounwind sanitize_address 12define void @fn2(ptr %p1) local_unnamed_addr #0 { 13entry: 14 %0 = load atomic i32, ptr inttoptr (i64 add (i64 ptrtoint (ptr @__sancov_gen_cov to i64), i64 4) to ptr) 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(ptr inttoptr (i64 add (i64 ptrtoint (ptr @__sancov_gen_cov to i64), i64 4) to ptr)) 20 call void asm sideeffect "", ""() 21 br label %3 22 23; <label>:3: ; preds = %entry, %2 24 br label %while.cond.outer 25 26while.cond.outer: ; preds = %75, %3 27 %e.0.ph = phi ptr [ %e.058, %75 ], [ undef, %3 ] 28 %c.0.ph = phi ptr [ %c.059, %75 ], [ undef, %3 ] 29 %p1.addr.0.ph = phi ptr [ %incdec.ptr60, %75 ], [ %p1, %3 ] 30 %4 = ptrtoint ptr %p1.addr.0.ph to i64 31 %5 = lshr i64 %4, 3 32 %6 = add i64 %5, 2147450880 33 %7 = inttoptr i64 %6 to ptr 34 %8 = load i8, ptr %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, ptr %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 55while.cond.outer.enoent.loopexit96_crit_edge: ; preds = %15 56 %17 = load atomic i32, ptr inttoptr (i64 add (i64 ptrtoint (ptr @__sancov_gen_cov to i64), i64 8) to ptr) 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(ptr inttoptr (i64 add (i64 ptrtoint (ptr @__sancov_gen_cov to i64), i64 8) to ptr)) 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 68while.body.preheader: ; preds = %15 69 br label %while.body 70 71while.body: ; preds = %56, %while.body.preheader 72 %21 = phi i8 [ %52, %56 ], [ %16, %while.body.preheader ] 73 %p1.addr.0.ph.pn = phi ptr [ %incdec.ptr60, %56 ], [ %p1.addr.0.ph, %while.body.preheader ] 74 %c.059 = phi ptr [ %incdec.ptr18, %56 ], [ %c.0.ph, %while.body.preheader ] 75 %e.058 = phi ptr [ %incdec.ptr60, %56 ], [ %e.0.ph, %while.body.preheader ] 76 %incdec.ptr60 = getelementptr inbounds i8, ptr %p1.addr.0.ph.pn, i64 1 77 %conv = sext i8 %21 to i32 78 %call = tail call i32 (ptr, i32, ...) @fn3(ptr @.str, 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 83if.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 88if.end14: ; preds = %if.end5 89 %lshr1 = lshr i64 ptrtoint (ptr @a to i64), 3 90 %add1 = add i64 %lshr1, 2147450880 91 %inttoptr1 = inttoptr i64 %add1 to ptr 92 %22 = load i8, ptr %inttoptr1 93 %23 = icmp ne i8 %22, 0 94 br i1 %23, label %24, label %25 95 96; <label>:24: ; preds = %if.end14 97 call void @__asan_report_load8(i64 ptrtoint (ptr @a to i64)) 98 call void asm sideeffect "", ""() 99 unreachable 100 101; <label>:25: ; preds = %if.end14 102 %26 = load ptr, ptr @a, align 8 103 %tobool15 = icmp eq ptr %26, null 104 br i1 %tobool15, label %cleanup.thread39, label %cleanup23.loopexit 105 106cleanup.thread39: ; preds = %25 107 %incdec.ptr18 = getelementptr inbounds i32, ptr %c.059, i64 1 108 %27 = ptrtoint ptr %c.059 to i64 109 %28 = lshr i64 %27, 3 110 %29 = add i64 %28, 2147450880 111 %30 = inttoptr i64 %29 to ptr 112 %31 = load i8, ptr %30 113 %32 = icmp ne i8 %31, 0 114 br i1 %32, label %33, label %39 115 116; <label>:33: ; preds = %cleanup.thread39 117 %34 = and i64 %27, 7 118 %35 = add i64 %34, 3 119 %36 = trunc i64 %35 to i8 120 %37 = icmp sge i8 %36, %31 121 br i1 %37, label %38, label %39 122 123; <label>:38: ; preds = %33 124 call void @__asan_report_store4(i64 %27) 125 call void asm sideeffect "", ""() 126 unreachable 127 128; <label>:39: ; preds = %33, %cleanup.thread39 129 store i32 0, ptr %c.059, align 4 130 %40 = ptrtoint ptr %incdec.ptr60 to i64 131 %41 = lshr i64 %40, 3 132 %42 = add i64 %41, 2147450880 133 %43 = inttoptr i64 %42 to ptr 134 %44 = load i8, ptr %43 135 %45 = icmp ne i8 %44, 0 136 br i1 %45, label %46, label %51 137 138; <label>:46: ; preds = %39 139 %47 = and i64 %40, 7 140 %48 = trunc i64 %47 to i8 141 %49 = icmp sge i8 %48, %44 142 br i1 %49, label %50, label %51 143 144; <label>:50: ; preds = %46 145 call void @__asan_report_load1(i64 %40) 146 call void asm sideeffect "", ""() 147 unreachable 148 149; <label>:51: ; preds = %46, %39 150 %52 = load i8, ptr %incdec.ptr60, align 1 151 call void @__sanitizer_cov_trace_cmp1(i8 %52, i8 0) 152 %cmp = icmp eq i8 %52, 0 153 br i1 %cmp, label %enoent.loopexit, label %cleanup.thread39.while.body_crit_edge 154 155cleanup.thread39.while.body_crit_edge: ; preds = %51 156 %53 = load atomic i32, ptr inttoptr (i64 add (i64 ptrtoint (ptr @__sancov_gen_cov to i64), i64 12) to ptr) monotonic, align 4 157 %54 = icmp sge i32 0, %53 158 br i1 %54, label %55, label %56 159 160; <label>:55: ; preds = %cleanup.thread39.while.body_crit_edge 161 call void @__sanitizer_cov(ptr inttoptr (i64 add (i64 ptrtoint (ptr @__sancov_gen_cov to i64), i64 12) to ptr)) 162 call void asm sideeffect "", ""() 163 br label %56 164 165; <label>:56: ; preds = %cleanup.thread39.while.body_crit_edge, %55 166 br label %while.body 167 168cleanup.thread40: ; preds = %if.end5 169 %57 = load atomic i32, ptr inttoptr (i64 add (i64 ptrtoint (ptr @__sancov_gen_cov to i64), i64 16) to ptr) monotonic, align 4 170 %58 = icmp sge i32 0, %57 171 br i1 %58, label %59, label %60 172 173; <label>:59: ; preds = %cleanup.thread40 174 call void @__sanitizer_cov(ptr inttoptr (i64 add (i64 ptrtoint (ptr @__sancov_gen_cov to i64), i64 16) to ptr)) 175 call void asm sideeffect "", ""() 176 br label %60 177 178; <label>:60: ; preds = %cleanup.thread40, %59 179 %call20 = tail call i32 (ptr, ...) @fn4(ptr %e.058) #2 180 br label %enoent 181 182cleanup: ; preds = %while.body 183 %lshr2 = lshr i64 ptrtoint (ptr @b to i64), 3 184 %add2 = add i64 %lshr2, 2147450880 185 %inttoptr2 = inttoptr i64 %add2 to ptr 186 %61 = load i8, ptr %inttoptr2 187 %62 = icmp ne i8 %61, 0 188 br i1 %62, label %63, label %66 189 190; <label>:63: ; preds = %cleanup 191 %and = and i64 ptrtoint (ptr @b to i64), 7 192 %add = add i64 %and, 3 193 %trunc = trunc i64 %add to i8 194 %64 = icmp sge i8 %trunc, %61 195 br i1 %64, label %65, label %66 196 197; <label>:65: ; preds = %63 198 call void @__asan_report_load4(i64 ptrtoint (ptr @b to i64)) 199 call void asm sideeffect "", ""() 200 unreachable 201 202; <label>:66: ; preds = %63, %cleanup 203 %67 = load i32, ptr @b, align 4 204 call void @__sanitizer_cov_trace_cmp4(i32 %67, i32 0) 205 %tobool3 = icmp eq i32 %67, 0 206 br i1 %tobool3, label %cleanup.while.cond.outer_crit_edge, label %cleanup.enoent.loopexit96_crit_edge 207 208cleanup.enoent.loopexit96_crit_edge: ; preds = %66 209 %68 = load atomic i32, ptr inttoptr (i64 add (i64 ptrtoint (ptr @__sancov_gen_cov to i64), i64 20) to ptr) monotonic, align 4 210 %69 = icmp sge i32 0, %68 211 br i1 %69, label %70, label %71 212 213; <label>:70: ; preds = %cleanup.enoent.loopexit96_crit_edge 214 call void @__sanitizer_cov(ptr inttoptr (i64 add (i64 ptrtoint (ptr @__sancov_gen_cov to i64), i64 20) to ptr)) 215 call void asm sideeffect "", ""() 216 br label %71 217 218; <label>:71: ; preds = %cleanup.enoent.loopexit96_crit_edge, %70 219 br label %enoent.loopexit96 220 221cleanup.while.cond.outer_crit_edge: ; preds = %66 222 %72 = load atomic i32, ptr inttoptr (i64 add (i64 ptrtoint (ptr @__sancov_gen_cov to i64), i64 24) to ptr) monotonic, align 4 223 %73 = icmp sge i32 0, %72 224 br i1 %73, label %74, label %75 225 226; <label>:74: ; preds = %cleanup.while.cond.outer_crit_edge 227 call void @__sanitizer_cov(ptr inttoptr (i64 add (i64 ptrtoint (ptr @__sancov_gen_cov to i64), i64 24) to ptr)) 228 call void asm sideeffect "", ""() 229 br label %75 230 231; <label>:75: ; preds = %cleanup.while.cond.outer_crit_edge, %74 232 br label %while.cond.outer 233 234enoent.loopexit: ; preds = %51 235 %76 = load atomic i32, ptr inttoptr (i64 add (i64 ptrtoint (ptr @__sancov_gen_cov to i64), i64 28) to ptr) monotonic, align 4 236 %77 = icmp sge i32 0, %76 237 br i1 %77, label %78, label %79 238 239; <label>:78: ; preds = %enoent.loopexit 240 call void @__sanitizer_cov(ptr inttoptr (i64 add (i64 ptrtoint (ptr @__sancov_gen_cov to i64), i64 28) to ptr)) 241 call void asm sideeffect "", ""() 242 br label %79 243 244; <label>:79: ; preds = %enoent.loopexit, %78 245 br label %enoent 246 247enoent.loopexit96: ; preds = %71, %20 248 br label %enoent 249 250enoent: ; preds = %enoent.loopexit96, %79, %60 251 %call22 = tail call ptr (...) @fn1() #2 252 br label %cleanup23 253 254cleanup23.loopexit: ; preds = %25 255 %80 = load atomic i32, ptr inttoptr (i64 add (i64 ptrtoint (ptr @__sancov_gen_cov to i64), i64 32) to ptr) monotonic, align 4 256 %81 = icmp sge i32 0, %80 257 br i1 %81, label %82, label %83 258 259; <label>:82: ; preds = %cleanup23.loopexit 260 call void @__sanitizer_cov(ptr inttoptr (i64 add (i64 ptrtoint (ptr @__sancov_gen_cov to i64), i64 32) to ptr)) 261 call void asm sideeffect "", ""() 262 br label %83 263 264; <label>:83: ; preds = %cleanup23.loopexit, %82 265 br label %cleanup23 266 267cleanup23: ; preds = %83, %enoent 268 ret void 269} 270 271declare i32 @fn3(...) local_unnamed_addr #1 272 273declare i32 @fn4(...) local_unnamed_addr #1 274 275declare ptr @fn1(...) local_unnamed_addr #1 276 277declare void @__sanitizer_cov(ptr) 278 279declare void @__sanitizer_cov_trace_cmp1(i8, i8) 280 281declare void @__sanitizer_cov_trace_cmp4(i32, i32) 282 283declare void @__asan_report_load1(i64) 284 285declare void @__asan_report_load4(i64) 286 287declare void @__asan_report_load8(i64) 288 289declare void @__asan_report_store4(i64) 290 291