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.
4 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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
11 ; Function Attrs: nounwind sanitize_address
12 define void @fn2(ptr %p1) local_unnamed_addr #0 {
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
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 "", ""()
23 ; <label>:3: ; preds = %entry, %2
24 br label %while.cond.outer
26 while.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
32 %6 = add i64 %5, 2147450880
33 %7 = inttoptr i64 %6 to ptr
36 br i1 %9, label %10, label %15
38 ; <label>:10: ; preds = %while.cond.outer
40 %12 = trunc i64 %11 to i8
41 %13 = icmp sge i8 %12, %8
42 br i1 %13, label %14, label %15
44 ; <label>:14: ; preds = %10
45 call void @__asan_report_load1(i64 %4)
46 call void asm sideeffect "", ""()
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
55 while.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
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 "", ""()
65 ; <label>:20: ; preds = %while.cond.outer.enoent.loopexit96_crit_edge, %19
66 br label %enoent.loopexit96
68 while.body.preheader: ; preds = %15
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 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 getelementptr inbounds ({ [17 x i8], [47 x i8] }, ptr @.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
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
88 if.end14: ; preds = %if.end5
89 %22 = load i8, ptr inttoptr (i64 add (i64 lshr (i64 ptrtoint (ptr @a to i64), i64 3), i64 2147450880) to ptr)
90 %23 = icmp ne i8 %22, 0
91 br i1 %23, label %24, label %25
93 ; <label>:24: ; preds = %if.end14
94 call void @__asan_report_load8(i64 ptrtoint (ptr @a to i64))
95 call void asm sideeffect "", ""()
98 ; <label>:25: ; preds = %if.end14
99 %26 = load ptr, ptr @a, align 8
100 %tobool15 = icmp eq ptr %26, null
101 br i1 %tobool15, label %cleanup.thread39, label %cleanup23.loopexit
103 cleanup.thread39: ; preds = %25
104 %incdec.ptr18 = getelementptr inbounds i32, ptr %c.059, i64 1
105 %27 = ptrtoint ptr %c.059 to i64
106 %28 = lshr i64 %27, 3
107 %29 = add i64 %28, 2147450880
108 %30 = inttoptr i64 %29 to ptr
109 %31 = load i8, ptr %30
110 %32 = icmp ne i8 %31, 0
111 br i1 %32, label %33, label %39
113 ; <label>:33: ; preds = %cleanup.thread39
116 %36 = trunc i64 %35 to i8
117 %37 = icmp sge i8 %36, %31
118 br i1 %37, label %38, label %39
120 ; <label>:38: ; preds = %33
121 call void @__asan_report_store4(i64 %27)
122 call void asm sideeffect "", ""()
125 ; <label>:39: ; preds = %33, %cleanup.thread39
126 store i32 0, ptr %c.059, align 4
127 %40 = ptrtoint ptr %incdec.ptr60 to i64
128 %41 = lshr i64 %40, 3
129 %42 = add i64 %41, 2147450880
130 %43 = inttoptr i64 %42 to ptr
131 %44 = load i8, ptr %43
132 %45 = icmp ne i8 %44, 0
133 br i1 %45, label %46, label %51
135 ; <label>:46: ; preds = %39
137 %48 = trunc i64 %47 to i8
138 %49 = icmp sge i8 %48, %44
139 br i1 %49, label %50, label %51
141 ; <label>:50: ; preds = %46
142 call void @__asan_report_load1(i64 %40)
143 call void asm sideeffect "", ""()
146 ; <label>:51: ; preds = %46, %39
147 %52 = load i8, ptr %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
152 cleanup.thread39.while.body_crit_edge: ; preds = %51
153 %53 = load atomic i32, ptr inttoptr (i64 add (i64 ptrtoint (ptr @__sancov_gen_cov to i64), i64 12) to ptr) monotonic, align 4
154 %54 = icmp sge i32 0, %53
155 br i1 %54, label %55, label %56
157 ; <label>:55: ; preds = %cleanup.thread39.while.body_crit_edge
158 call void @__sanitizer_cov(ptr inttoptr (i64 add (i64 ptrtoint (ptr @__sancov_gen_cov to i64), i64 12) to ptr))
159 call void asm sideeffect "", ""()
162 ; <label>:56: ; preds = %cleanup.thread39.while.body_crit_edge, %55
165 cleanup.thread40: ; preds = %if.end5
166 %57 = load atomic i32, ptr inttoptr (i64 add (i64 ptrtoint (ptr @__sancov_gen_cov to i64), i64 16) to ptr) monotonic, align 4
167 %58 = icmp sge i32 0, %57
168 br i1 %58, label %59, label %60
170 ; <label>:59: ; preds = %cleanup.thread40
171 call void @__sanitizer_cov(ptr inttoptr (i64 add (i64 ptrtoint (ptr @__sancov_gen_cov to i64), i64 16) to ptr))
172 call void asm sideeffect "", ""()
175 ; <label>:60: ; preds = %cleanup.thread40, %59
176 %call20 = tail call i32 (ptr, ...) @fn4(ptr %e.058) #2
179 cleanup: ; preds = %while.body
180 %61 = load i8, ptr inttoptr (i64 add (i64 lshr (i64 ptrtoint (ptr @b to i64), i64 3), i64 2147450880) to ptr)
181 %62 = icmp ne i8 %61, 0
182 br i1 %62, label %63, label %66
184 ; <label>:63: ; preds = %cleanup
185 %and = and i64 ptrtoint (ptr @b to i64), 7
186 %add = add i64 %and, 3
187 %trunc = trunc i64 %add to i8
188 %64 = icmp sge i8 %trunc, %61
189 br i1 %64, label %65, label %66
191 ; <label>:65: ; preds = %63
192 call void @__asan_report_load4(i64 ptrtoint (ptr @b to i64))
193 call void asm sideeffect "", ""()
196 ; <label>:66: ; preds = %63, %cleanup
197 %67 = load i32, ptr @b, align 4
198 call void @__sanitizer_cov_trace_cmp4(i32 %67, i32 0)
199 %tobool3 = icmp eq i32 %67, 0
200 br i1 %tobool3, label %cleanup.while.cond.outer_crit_edge, label %cleanup.enoent.loopexit96_crit_edge
202 cleanup.enoent.loopexit96_crit_edge: ; preds = %66
203 %68 = load atomic i32, ptr inttoptr (i64 add (i64 ptrtoint (ptr @__sancov_gen_cov to i64), i64 20) to ptr) monotonic, align 4
204 %69 = icmp sge i32 0, %68
205 br i1 %69, label %70, label %71
207 ; <label>:70: ; preds = %cleanup.enoent.loopexit96_crit_edge
208 call void @__sanitizer_cov(ptr inttoptr (i64 add (i64 ptrtoint (ptr @__sancov_gen_cov to i64), i64 20) to ptr))
209 call void asm sideeffect "", ""()
212 ; <label>:71: ; preds = %cleanup.enoent.loopexit96_crit_edge, %70
213 br label %enoent.loopexit96
215 cleanup.while.cond.outer_crit_edge: ; preds = %66
216 %72 = load atomic i32, ptr inttoptr (i64 add (i64 ptrtoint (ptr @__sancov_gen_cov to i64), i64 24) to ptr) monotonic, align 4
217 %73 = icmp sge i32 0, %72
218 br i1 %73, label %74, label %75
220 ; <label>:74: ; preds = %cleanup.while.cond.outer_crit_edge
221 call void @__sanitizer_cov(ptr inttoptr (i64 add (i64 ptrtoint (ptr @__sancov_gen_cov to i64), i64 24) to ptr))
222 call void asm sideeffect "", ""()
225 ; <label>:75: ; preds = %cleanup.while.cond.outer_crit_edge, %74
226 br label %while.cond.outer
228 enoent.loopexit: ; preds = %51
229 %76 = load atomic i32, ptr inttoptr (i64 add (i64 ptrtoint (ptr @__sancov_gen_cov to i64), i64 28) to ptr) monotonic, align 4
230 %77 = icmp sge i32 0, %76
231 br i1 %77, label %78, label %79
233 ; <label>:78: ; preds = %enoent.loopexit
234 call void @__sanitizer_cov(ptr inttoptr (i64 add (i64 ptrtoint (ptr @__sancov_gen_cov to i64), i64 28) to ptr))
235 call void asm sideeffect "", ""()
238 ; <label>:79: ; preds = %enoent.loopexit, %78
241 enoent.loopexit96: ; preds = %71, %20
244 enoent: ; preds = %enoent.loopexit96, %79, %60
245 %call22 = tail call ptr (...) @fn1() #2
248 cleanup23.loopexit: ; preds = %25
249 %80 = load atomic i32, ptr inttoptr (i64 add (i64 ptrtoint (ptr @__sancov_gen_cov to i64), i64 32) to ptr) monotonic, align 4
250 %81 = icmp sge i32 0, %80
251 br i1 %81, label %82, label %83
253 ; <label>:82: ; preds = %cleanup23.loopexit
254 call void @__sanitizer_cov(ptr inttoptr (i64 add (i64 ptrtoint (ptr @__sancov_gen_cov to i64), i64 32) to ptr))
255 call void asm sideeffect "", ""()
258 ; <label>:83: ; preds = %cleanup23.loopexit, %82
261 cleanup23: ; preds = %83, %enoent
265 declare i32 @fn3(...) local_unnamed_addr #1
267 declare i32 @fn4(...) local_unnamed_addr #1
269 declare ptr @fn1(...) local_unnamed_addr #1
271 declare void @__sanitizer_cov(ptr)
273 declare void @__sanitizer_cov_trace_cmp1(i8, i8)
275 declare void @__sanitizer_cov_trace_cmp4(i32, i32)
277 declare void @__asan_report_load1(i64)
279 declare void @__asan_report_load4(i64)
281 declare void @__asan_report_load8(i64)
283 declare void @__asan_report_store4(i64)