1; RUN: llc %s -stop-after=finalize-isel -o - \ 2; RUN: | FileCheck %s --implicit-check-not=DBG 3 4 5; RUN: llc --try-experimental-debuginfo-iterators %s -stop-after=finalize-isel -o - \ 6; RUN: | FileCheck %s --implicit-check-not=DBG 7 8;; Test a variety of block inputs and lattice configurations for the assignment 9;; tracking analysis (debug-ata). This is the same as nested-loop.ll except each 10;; alloca holds a fragment of a variable instead of a whole variable. 11;; The CFG looks like this: 12;; entry 13;; | 14;; v 15;; do.body <-----+ 16;; | | 17;; V | 18;; do.body1 <--+ | 19;; / \ | | 20;; / \ | | 21;; / \ | | 22;; v v | | 23;; if.then if.else | | 24;; \ / | | 25;; \ / | | 26;; \ / | | 27;; do.cond ----+ | 28;; | | 29;; v | 30;; do.cond4 -----+ 31;; | 32;; v 33;; do.end6 34 35;; Key 36;; ╔═════════════════════╦═══════════════════════════════════════════════════════════════════╗ 37;; ║ thing ║ meaning ║ 38;; ╠═════════════════════╬═══════════════════════════════════════════════════════════════════╣ 39;; ║ mem=<!n|phi> ║ assignment of !n or phi to memory ║ 40;; ║ dbg=<!n|phi> ║ assignment of !n or phi to source variable ║ 41;; ║ phi ║ phi of assignments (operands not traked)* ║ 42;; ║ loc=<val|mem|none> ║ location to use is value (implicit location), stack home, or none ║ 43;; ╚═════════════════════╩═══════════════════════════════════════════════════════════════════╝ 44;; (*) A phi in the def column represents an assignment made by an untagged store. 45;; 46;; Variable 'a' (!21) 47;; Check initial dbg and mem assignment values are propagated through all blocks. 48;; ╔═════════════╦══════════════════════════╦═════════════════╦══════════════════════════╗ 49;; ║ block ║ in ║ def ║ out ║ 50;; ╠═════════════╬══════════════════════════╬═════════════════╬══════════════════════════╣ 51;; ║ entry ║ ║ mem=!63 dbg=!70 ║ mem=!63 dbg=!70 loc=val ║ 52;; ║ do.end6 ║ mem=!63 dbg=!70 loc=val ║ mem=!63 ║ mem=!63 dbg=!63 loc=mem ║ 53;; ╚═════════════╩══════════════════════════╩═════════════════╩══════════════════════════╝ 54;; 55;; Variable 'b' (!22) 56;; Check mem=dbg assignment on branch in nested loop causes a mem=phi (tested by looking 57;; for value-based DBG_VALUE in do.end6). 58;; ╔═════════════╦══════════════════════════╦═════════════════╦══════════════════════════╗ 59;; ║ block ║ in ║ def ║ out ║ 60;; ╠═════════════╬══════════════════════════╬═════════════════╬══════════════════════════╣ 61;; ║ entry ║ ║ mem=!65 dbg=!71 ║ mem=!65 dbg=!71 loc=val ║ 62;; ║ if.then ║ mem=phi dbg=phi loc=none ║ mem=!66 dbg=!66 ║ mem=!66 dbg=!66 loc=mem ║ 63;; ║ do.end6 ║ mem=phi dbg=phi loc=none ║ mem=!65 ║ mem=phi dbg=!65 loc=val ║ 64;; ╚═════════════╩══════════════════════════╩═════════════════╩══════════════════════════╝ 65;; 66;; Variable 'c' (!67) 67;; Check initial dbg and mem assignment values are propagated through all blocks, with 68;; dbg defs with the inital assignment ID put in do.cond and do.end6 (variable is always 69;; in memory). 70;; ╔═════════════╦══════════════════════════╦═════════════════╦══════════════════════════╗ 71;; ║ block ║ in ║ def ║ out ║ 72;; ╠═════════════╬══════════════════════════╬═════════════════╬══════════════════════════╣ 73;; ║ entry ║ ║ mem=!69 dbg=!69 ║ mem=!69 dbg=!69 loc=mem ║ 74;; ║ do.cond ║ mem=!69 dbg=!69 loc=mem ║ dbg=!69 ║ mem=!69 dbg=!69 loc=mem ║ 75;; ║ do.end6 ║ mem=!69 dbg=!69 loc=mem ║ dbg=!69 ║ mem=!69 dbg=!69 loc=mem ║ 76;; ╚═════════════╩══════════════════════════╩═════════════════╩══════════════════════════╝ 77;; 78;; Variable 'd' (!72) 79;; Same as above, except the dbg def in do.cond has been swapped for a dbg=mem def (with 80;; the initial assignment ID) and has been moved to if.else. 81;; ╔═════════════╦══════════════════════════╦═════════════════╦══════════════════════════╗ 82;; ║ block ║ in ║ def ║ out ║ 83;; ╠═════════════╬══════════════════════════╬═════════════════╬══════════════════════════╣ 84;; ║ entry ║ ║ mem=!74 dbg=!74 ║ mem=!74 dbg=!74 loc=mem ║ 85;; ║ if.else ║ mem=!74 dbg=!74 loc=mem ║ mem=!74 dbg=!74 ║ mem=!74 dbg=!74 loc=mem ║ 86;; ║ do.end6 ║ mem=!74 dbg=!74 loc=mem ║ dbg=!74 ║ mem=!74 dbg=!74 loc=mem ║ 87;; ╚═════════════╩══════════════════════════╩═════════════════╩══════════════════════════╝ 88;; 89;; Variable 'e' (!75) 90;; mem defs in entry, if.then and if.else with same ID (!77). Check these join correct 91;; (tested using the dbg defs of the same ID - the memory location is valid at each of 92;; these with that ID). 93;; ╔═════════════╦══════════════════════════╦═════════════════╦══════════════════════════╗ 94;; ║ block ║ in ║ def ║ out ║ 95;; ╠═════════════╬══════════════════════════╬═════════════════╬══════════════════════════╣ 96;; ║ entry ║ ║ mem=!77 dbg=!78 ║ mem=!77 dbg=!78 loc=val ║ 97;; ║ do.body ║ mem=!77 dbg=phi loc=none ║ dbg=!77 ║ mem=!77 dbg=!77 loc=mem ║ 98;; ║ do.body1 ║ mem=!77 dbg=!77 loc=mem ║ dbg=!77 ║ mem=!77 dbg=!77 loc=mem ║ 99;; ║ if.then ║ mem=!77 dbg=!77 loc=mem ║ mem=!77 ║ mem=!77 dbg=!77 loc=mem ║ 100;; ║ if.else ║ mem=!77 dbg=!77 loc=mem ║ mem=!77 ║ mem=!77 dbg=!77 loc=mem ║ 101;; ╚═════════════╩══════════════════════════╩═════════════════╩══════════════════════════╝ 102;; 103;; Variable 'f' (!79) 104;; mem def in entry and an untagged store in if.else (results in mem=phi, dbg=phi defs). 105;; Use dbg defs in do.body, do.body1, do.cond and do.end6 to check the phi-ness 106;; has been propagated (the memory loc at each is not a valid location). Check the memory 107;; loc is used in if.else after the untagged store. 108;; ╔═════════════╦══════════════════════════╦═════════════════╦══════════════════════════╗ 109;; ║ block ║ in ║ def ║ out ║ 110;; ╠═════════════╬══════════════════════════╬═════════════════╬══════════════════════════╣ 111;; ║ entry ║ ║ mem=!81 dbg=!81 ║ mem=!81 dbg=!81 loc=mem ║ 112;; ║ do.body ║ mem=phi dbg=phi loc=none ║ dbg=!81 ║ mem=phi dbg=!81 loc=val ║ 113;; ║ do.body1 ║ mem=phi dbg=phi loc=none ║ dbg=!81 ║ mem=phi dbg=!81 loc=val ║ 114;; ║ if.else ║ mem=phi dbg=phi loc=none ║ mem=phi dbg=phi ║ mem=phi dbg=phi loc=mem ║ 115;; ║ do.cond ║ mem=phi dbg=phi loc=none ║ dbg=!81 ║ mem=phi dbg=!81 loc=val ║ 116;; ║ do.end6 ║ mem=phi dbg=!81 loc=val ║ dbg=!81 ║ mem=!69 dbg=!81 loc=val ║ 117;; ╚═════════════╩══════════════════════════╩═════════════════╩══════════════════════════╝ 118;; 119;; Variable 'g' (!82) 120;; Check that joining loc=none with anything else results in loc=none. The out-loc of 121;; entry is set up to be loc=none by following an untagged store with a tagged store, 122;; with the linked dbg.assign in another block. The dbg.assign is in do.body - it follows 123;; another store linked to it. Importantly, there are other instructions wedged between 124;; them, which is how we test that the in-loc is loc=none. The result of encountering 125;; a tagged store while the loc=none is to emit nothing. Thus, we check that no location 126;; def is emitted in do.body until the dbg.assign is encountered (after the load that was 127;; wedged between the store and intrinsic). 128;; ╔═════════════╦══════════════════════════╦═════════════════╦══════════════════════════╗ 129;; ║ block ║ in ║ def ║ out ║ 130;; ╠═════════════╬══════════════════════════╬═════════════════╬══════════════════════════╣ 131;; ║ entry ║ ║ mem=phi dbg=phi ║ mem=phi dbg=phi loc=none ║ 132;; ║ do.body ║ mem=phi dbg=phi loc=none ║ mem=!84 dbg=!84 ║ mem=!84 dbg=!84 loc=mem ║ 133;; ╚═════════════╩══════════════════════════╩═════════════════╩══════════════════════════╝ 134 135; CHECK-DAG: ![[a:[0-9]+]] = !DILocalVariable(name: "a", 136; CHECK-DAG: ![[b:[0-9]+]] = !DILocalVariable(name: "b", 137; CHECK-DAG: ![[c:[0-9]+]] = !DILocalVariable(name: "c", 138; CHECK-DAG: ![[d:[0-9]+]] = !DILocalVariable(name: "d", 139; CHECK-DAG: ![[e:[0-9]+]] = !DILocalVariable(name: "e", 140; CHECK-DAG: ![[f:[0-9]+]] = !DILocalVariable(name: "f", 141; CHECK-DAG: ![[g:[0-9]+]] = !DILocalVariable(name: "g", 142 143;; Variables 'c' (!67) and 'd' (!72) are always stack-homed, but the analysis 144;; currently doesn't try to work this out for sroa-d vars. Instead, we get a 145;; set of DBG_VALUEs. 146;; TODO / Wishlist: 147; KCEHC: - { id: 2, name: c.addr, type: default, offset: 0, size: 4, alignment: 4, 148; TXEN-KCEHC: stack-id: default, callee-saved-register: '', callee-saved-restored: true, 149; TXEN-KCEHC: debug-info-variable: '![[c]]', debug-info-expression: '!DIExpression()', 150; KCEHC: - { id: 3, name: d.addr, type: default, offset: 0, size: 4, alignment: 4, 151; TXEN-KCEHC: stack-id: default, callee-saved-register: '', callee-saved-restored: true, 152; TXEN-KCEHC: debug-info-variable: '![[d]]', debug-info-expression: '!DIExpression()', 153 154source_filename = "test.cpp" 155target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" 156target triple = "x86_64-unknown-linux-gnu" 157 158@g_a = dso_local local_unnamed_addr global i32 0, align 4, !dbg !0 159@g_b = dso_local local_unnamed_addr global i32 0, align 4, !dbg !5 160@g_c = dso_local local_unnamed_addr global i32 0, align 4, !dbg !8 161 162define dso_local noundef i32 @_Z3funii(i32 noundef %a, i32 noundef %b) local_unnamed_addr #0 !dbg !17 { 163entry: 164 %a.addr = alloca i32, align 4, !DIAssignID !58 ; VAR:a 165 call void @llvm.dbg.assign(metadata i1 undef, metadata !21, metadata !DIExpression(DW_OP_LLVM_fragment, 32, 32), metadata !58, metadata ptr %a.addr, metadata !DIExpression()), !dbg !27 ; VAR:a 166 %b.addr = alloca i32, align 4, !DIAssignID !64 ; VAR:b 167 call void @llvm.dbg.assign(metadata i1 undef, metadata !22, metadata !DIExpression(DW_OP_LLVM_fragment, 32, 32), metadata !64, metadata ptr %b.addr, metadata !DIExpression()), !dbg !27 ; VAR:b 168 %c.addr = alloca i32, align 4, !DIAssignID !68 ; VAR:c 169 call void @llvm.dbg.assign(metadata i1 undef, metadata !67, metadata !DIExpression(DW_OP_LLVM_fragment, 32, 32), metadata !68, metadata ptr %c.addr, metadata !DIExpression()), !dbg !27 ; VAR:c 170 %d.addr = alloca i32, align 4, !DIAssignID !73 ; VAR:d 171 call void @llvm.dbg.assign(metadata i1 undef, metadata !72, metadata !DIExpression(DW_OP_LLVM_fragment, 32, 32), metadata !73, metadata ptr %d.addr, metadata !DIExpression()), !dbg !27 ; VAR:d 172 %e.addr = alloca i32, align 4, !DIAssignID !76 ; VAR:e 173 call void @llvm.dbg.assign(metadata i1 undef, metadata !75, metadata !DIExpression(DW_OP_LLVM_fragment, 32, 32), metadata !76, metadata ptr %e.addr, metadata !DIExpression()), !dbg !27 ; VAR:e 174 %f.addr = alloca i32, align 4, !DIAssignID !80 ; VAR:f 175 call void @llvm.dbg.assign(metadata i1 undef, metadata !79, metadata !DIExpression(DW_OP_LLVM_fragment, 32, 32), metadata !80, metadata ptr %f.addr, metadata !DIExpression()), !dbg !27 ; VAR:f 176 %g.addr = alloca i32, align 4, !DIAssignID !83 ; VAR:g 177 call void @llvm.dbg.assign(metadata i1 undef, metadata !82, metadata !DIExpression(DW_OP_LLVM_fragment, 32, 32), metadata !83, metadata ptr %g.addr, metadata !DIExpression()), !dbg !27 ; VAR:g 178 store i32 1, ptr %a.addr, !DIAssignID !70 ; VAR:a 179 call void @llvm.dbg.assign(metadata i32 1, metadata !21, metadata !DIExpression(DW_OP_LLVM_fragment, 32, 32), metadata !70, metadata ptr %a.addr, metadata !DIExpression()), !dbg !27 ; VAR:a 180 store i32 2, ptr %b.addr, !DIAssignID !71 ; VAR:b 181 call void @llvm.dbg.assign(metadata i32 2, metadata !22, metadata !DIExpression(DW_OP_LLVM_fragment, 32, 32), metadata !71, metadata ptr %b.addr, metadata !DIExpression()), !dbg !27 ; VAR:b 182 store i32 12, ptr %g.addr ; VAR:g 183 store i32 9, ptr %e.addr, !DIAssignID !78 ; VAR:e 184 call void @llvm.dbg.assign(metadata i32 9, metadata !75, metadata !DIExpression(DW_OP_LLVM_fragment, 32, 32), metadata !78, metadata ptr %e.addr, metadata !DIExpression()), !dbg !27 ; VAR:e 185 store i32 3, ptr %a.addr, !DIAssignID !63 ; VAR:a 186 store i32 4, ptr %b.addr, !DIAssignID !65 ; VAR:b 187 store i32 5, ptr %c.addr, !DIAssignID !69 ; VAR:c 188 call void @llvm.dbg.assign(metadata i32 5, metadata !67, metadata !DIExpression(DW_OP_LLVM_fragment, 32, 32), metadata !69, metadata ptr %c.addr, metadata !DIExpression()), !dbg !27 ; VAR:c 189 store i32 6, ptr %d.addr, !DIAssignID !74 ; VAR:d 190 call void @llvm.dbg.assign(metadata i32 6, metadata !72, metadata !DIExpression(DW_OP_LLVM_fragment, 32, 32), metadata !74, metadata ptr %d.addr, metadata !DIExpression()), !dbg !27 ; VAR:d 191 store i32 8, ptr %e.addr, !DIAssignID !77 ; VAR:e 192 store i32 13, ptr %g.addr, !DIAssignID !84 ; VAR:g 193 store i32 11, ptr %f.addr, !DIAssignID !81 ; VAR:f 194 call void @llvm.dbg.assign(metadata i32 11, metadata !79, metadata !DIExpression(DW_OP_LLVM_fragment, 32, 32), metadata !81, metadata ptr %f.addr, metadata !DIExpression()), !dbg !27 ; VAR:f 195 br label %do.body, !dbg !24 196; CHECK-LABEL: bb.0.entry: 197; CHECK-NEXT: successors 198; CHECK-NEXT: {{^ *$}} 199; CHECK-NEXT: DBG_VALUE %stack.0.a.addr, $noreg, ![[a]], !DIExpression(DW_OP_deref, DW_OP_LLVM_fragment, 32, 32) 200; CHECK-NEXT: DBG_VALUE %stack.1.b.addr, $noreg, ![[b]], !DIExpression(DW_OP_deref, DW_OP_LLVM_fragment, 32, 32) 201; CHECK-NEXT: DBG_VALUE %stack.2.c.addr, $noreg, ![[c]], !DIExpression(DW_OP_deref, DW_OP_LLVM_fragment, 32, 32) 202; CHECK-NEXT: DBG_VALUE %stack.3.d.addr, $noreg, ![[d]], !DIExpression(DW_OP_deref, DW_OP_LLVM_fragment, 32, 32) 203; CHECK-NEXT: DBG_VALUE %stack.4.e.addr, $noreg, ![[e]], !DIExpression(DW_OP_deref, DW_OP_LLVM_fragment, 32, 32) 204; CHECK-NEXT: DBG_VALUE %stack.5.f.addr, $noreg, ![[f]], !DIExpression(DW_OP_deref, DW_OP_LLVM_fragment, 32, 32) 205; CHECK-NEXT: DBG_VALUE %stack.6.g.addr, $noreg, ![[g]], !DIExpression(DW_OP_deref, DW_OP_LLVM_fragment, 32, 32) 206; CHECK-NEXT: MOV32mi %stack.0.a.addr, 1, $noreg, 0, $noreg, 3 207; CHECK-NEXT: DBG_VALUE 1, $noreg, ![[a]], !DIExpression(DW_OP_LLVM_fragment, 32, 32) 208; CHECK-NEXT: MOV32mi %stack.1.b.addr, 1, $noreg, 0, $noreg, 4 209; CHECK-NEXT: DBG_VALUE 2, $noreg, ![[b]], !DIExpression(DW_OP_LLVM_fragment, 32, 32) 210; CHECK-NEXT: MOV32mi %stack.2.c.addr, 1, $noreg, 0, $noreg, 5 211; CHECK-NEXT: MOV32mi %stack.3.d.addr, 1, $noreg, 0, $noreg, 6 212; CHECK-NEXT: MOV32mi %stack.4.e.addr, 1, $noreg, 0, $noreg, 8 213; CHECK-NEXT: DBG_VALUE 9, $noreg, ![[e]], !DIExpression(DW_OP_LLVM_fragment, 32, 32) 214; CHECK-NEXT: MOV32mi %stack.6.g.addr, 1, $noreg, 0, $noreg, 13 215; CHECK-NEXT: DBG_VALUE $noreg, $noreg, ![[g]], !DIExpression(DW_OP_LLVM_fragment, 32, 32) 216; CHECK-NEXT: MOV32mi %stack.5.f.addr, 1, $noreg, 0, $noreg, 11 217; CHECK-NEXT: {{^ *$}} 218 219do.body: ; preds = %do.cond4, %entry 220 call void @llvm.dbg.assign(metadata i32 8, metadata !75, metadata !DIExpression(DW_OP_LLVM_fragment, 32, 32), metadata !77, metadata ptr %e.addr, metadata !DIExpression()), !dbg !27 ; VAR:e 221 call void @llvm.dbg.assign(metadata i32 11, metadata !79, metadata !DIExpression(DW_OP_LLVM_fragment, 32, 32), metadata !81, metadata ptr %f.addr, metadata !DIExpression()), !dbg !27 ; VAR:f 222 store i32 13, ptr %g.addr, !DIAssignID !84 ; VAR:g 223 %.pre10 = load i32, ptr @g_a, align 4, !dbg !27 224 call void @llvm.dbg.assign(metadata i32 11, metadata !82, metadata !DIExpression(DW_OP_LLVM_fragment, 32, 32), metadata !84, metadata ptr %g.addr, metadata !DIExpression()), !dbg !27 ; VAR:g 225 br label %do.body1, !dbg !34 226; CHECK-LABEL: bb.1.do.body: 227; CHECK-NEXT: successors 228; CHECK-NEXT: {{^ *$}} 229; CHECK-NEXT: DBG_VALUE %stack.4.e.addr, $noreg, ![[e]], !DIExpression(DW_OP_deref, DW_OP_LLVM_fragment, 32, 32) 230; CHECK-NEXT: DBG_VALUE 11, $noreg, ![[f]], !DIExpression(DW_OP_LLVM_fragment, 32, 32) 231; CHECK-NEXT: MOV32mi %stack.6.g.addr, 1, $noreg, 0, $noreg, 13 232; CHECK-NEXT: %0:gr32 = MOV32rm $rip, 1, $noreg, @g_a, $noreg 233; CHECK-NEXT: DBG_VALUE %stack.6.g.addr, $noreg, ![[g]], !DIExpression(DW_OP_deref, DW_OP_LLVM_fragment, 32, 32) 234; CHECK-NEXT: {{^ *$}} 235 236do.body1: ; preds = %do.cond, %do.body 237 %0 = phi i32 [ %.pre10, %do.body ], [ %1, %do.cond ], !dbg !27 238 call void @llvm.dbg.assign(metadata i32 8, metadata !75, metadata !DIExpression(DW_OP_LLVM_fragment, 32, 32), metadata !77, metadata ptr %e.addr, metadata !DIExpression()), !dbg !27 ; VAR:e 239 call void @llvm.dbg.assign(metadata i32 11, metadata !79, metadata !DIExpression(DW_OP_LLVM_fragment, 32, 32), metadata !81, metadata ptr %f.addr, metadata !DIExpression()), !dbg !27 ; VAR:f 240 %tobool.not = icmp eq i32 %0, 0, !dbg !27 241 br i1 %tobool.not, label %if.else, label %if.then, !dbg !35 242; CHECK-LABEL: bb.2.do.body1: 243; CHECK-NEXT: successors 244; CHECK-NEXT: {{^ *$}} 245; CHECK: DBG_VALUE %stack.4.e.addr, $noreg, ![[e]], !DIExpression(DW_OP_deref, DW_OP_LLVM_fragment, 32, 32) 246; CHECK-NEXT: DBG_VALUE 11, $noreg, ![[f]], !DIExpression(DW_OP_LLVM_fragment, 32, 32) 247; CHECK: JMP_1 248; CHECK-NEXT: {{^ *$}} 249 250if.then: ; preds = %do.body1 251 %.pre = load i32, ptr @g_a, align 4, !dbg !27 252 store i32 %.pre, ptr %b.addr, !DIAssignID !66 ; VAR:b 253 call void @llvm.dbg.assign(metadata i32 %.pre, metadata !22, metadata !DIExpression(DW_OP_LLVM_fragment, 32, 32), metadata !66, metadata ptr %b.addr, metadata !DIExpression()), !dbg !27 ; VAR:b 254 store i32 8, ptr %e.addr, !DIAssignID !77 ; VAR:e 255 br label %do.cond, !dbg !39 256; CHECK-LABEL: bb.3.if.then: 257; CHECK-NEXT: successors 258; CHECK-NEXT: {{^ *$}} 259; CHECK-NEXT: %5:gr32 = MOV32rm 260; CHECK-NEXT: MOV32mr %stack.1.b.addr, 1, $noreg, 0, $noreg, killed %5 261; CHECK-NEXT: DBG_VALUE %stack.1.b.addr, $noreg, ![[b]], !DIExpression(DW_OP_deref 262; CHECK-NEXT: MOV32mi %stack.4.e.addr, 1, $noreg, 0, $noreg, 8 263; CHECK-NEXT: DBG_VALUE %stack.4.e.addr, $noreg, ![[e]], !DIExpression(DW_OP_deref, DW_OP_LLVM_fragment, 32, 32) 264; CHECK-NEXT: JMP_1 %bb.5 265; CHECK-NEXT: {{^ *$}} 266 267if.else: ; preds = %do.body1 268 store i32 6, ptr %d.addr, !DIAssignID !74 ; VAR:d 269 call void @llvm.dbg.assign(metadata i32 6, metadata !72, metadata !DIExpression(DW_OP_LLVM_fragment, 32, 32), metadata !74, metadata ptr %d.addr, metadata !DIExpression()), !dbg !27 ; VAR:d 270 store i32 8, ptr %e.addr, !DIAssignID !77 ; VAR:e 271 store i32 10, ptr %f.addr ; VAR:f 272 br label %do.cond 273; CHECK-LABEL: bb.4.if.else: 274; CHECK-NEXT: successors 275; CHECK-NEXT: {{^ *$}} 276; CHECK-NEXT: MOV32mi %stack.3.d.addr, 1, $noreg, 0, $noreg, 6 277; CHECK-NEXT: DBG_VALUE %stack.3.d.addr, $noreg, ![[d]], !DIExpression(DW_OP_deref, DW_OP_LLVM_fragment, 32, 32) 278; CHECK-NEXT: MOV32mi %stack.4.e.addr, 1, $noreg, 0, $noreg, 8 279; CHECK-NEXT: DBG_VALUE %stack.4.e.addr, $noreg, ![[e]], !DIExpression(DW_OP_deref, DW_OP_LLVM_fragment, 32, 32) 280; CHECK-NEXT: MOV32mi %stack.5.f.addr, 1, $noreg, 0, $noreg, 10 281; CHECK-NEXT: DBG_VALUE %stack.5.f.addr, $noreg, ![[f]], !DIExpression(DW_OP_deref, DW_OP_LLVM_fragment, 32, 32) 282; CHECK-NEXT: {{^ *$}} 283 284do.cond: ; preds = %if.then, %if.else 285 call void @llvm.dbg.assign(metadata i1 undef, metadata !67, metadata !DIExpression(DW_OP_LLVM_fragment, 32, 32), metadata !69, metadata ptr %c.addr, metadata !DIExpression()), !dbg !27 ; VAR:c 286 call void @llvm.dbg.assign(metadata i32 11, metadata !79, metadata !DIExpression(DW_OP_LLVM_fragment, 32, 32), metadata !81, metadata ptr %f.addr, metadata !DIExpression()), !dbg !27 ; VAR:f 287 %1 = load i32, ptr @g_b, align 4, !dbg !43 288 %tobool3.not = icmp eq i32 %1, 0, !dbg !43 289 br i1 %tobool3.not, label %do.cond4, label %do.body1, !dbg !44, !llvm.loop !45 290; CHECK-LABEL: bb.5.do.cond: 291; CHECK-NEXT: successors 292; CHECK-NEXT: {{^ *$}} 293; CHECK-NEXT: DBG_VALUE %stack.2.c.addr, $noreg, ![[c]], !DIExpression(DW_OP_deref, DW_OP_LLVM_fragment, 32, 32) 294; CHECK-NEXT: DBG_VALUE 11, $noreg, ![[f]], !DIExpression(DW_OP_LLVM_fragment, 32, 32) 295; CHECK: {{^ *$}} 296 297do.cond4: ; preds = %do.cond 298 %2 = load i32, ptr @g_c, align 4, !dbg !48 299 %tobool5.not = icmp eq i32 %2, 0, !dbg !48 300 br i1 %tobool5.not, label %do.end6, label %do.body, !dbg !49, !llvm.loop !50 301; CHECK-LABEL: bb.6.do.cond4: 302; CHECK-NEXT: successors 303; CHECK-NEXT: {{^ *$}} 304; CHECK-NOT: DBG 305; CHECK: {{^ *$}} 306 307do.end6: ; preds = %do.cond4 308 call void @llvm.dbg.assign(metadata i32 3, metadata !21, metadata !DIExpression(DW_OP_LLVM_fragment, 32, 32), metadata !63, metadata ptr %a.addr, metadata !DIExpression()), !dbg !27; VAR:a 309 call void @llvm.dbg.assign(metadata i32 4, metadata !22, metadata !DIExpression(DW_OP_LLVM_fragment, 32, 32), metadata !65, metadata ptr %b.addr, metadata !DIExpression()), !dbg !27 ; VAR:b 310 call void @llvm.dbg.assign(metadata i1 undef, metadata !67, metadata !DIExpression(DW_OP_LLVM_fragment, 32, 32), metadata !69, metadata ptr %c.addr, metadata !DIExpression()), !dbg !27 ; VAR:c 311 call void @llvm.dbg.assign(metadata i32 6, metadata !72, metadata !DIExpression(DW_OP_LLVM_fragment, 32, 32), metadata !74, metadata ptr %d.addr, metadata !DIExpression()), !dbg !27 ; VAR:d 312 call void @llvm.dbg.assign(metadata i32 11, metadata !79, metadata !DIExpression(DW_OP_LLVM_fragment, 32, 32), metadata !81, metadata ptr %f.addr, metadata !DIExpression()), !dbg !27 ; VAR:f 313 ret i32 0, !dbg !53 314; CHECK-LABEL: bb.7.do.end6: 315; CHECK-NEXT: DBG_VALUE %stack.0.a.addr, $noreg, ![[a]], !DIExpression(DW_OP_deref, DW_OP_LLVM_fragment, 32, 32) 316; CHECK-NEXT: DBG_VALUE 4, $noreg, ![[b]], !DIExpression(DW_OP_LLVM_fragment, 32, 32) 317; CHECK-NEXT: DBG_VALUE %stack.2.c.addr, $noreg, ![[c]], !DIExpression(DW_OP_deref, DW_OP_LLVM_fragment, 32, 32) 318; CHECK-NEXT: DBG_VALUE %stack.3.d.addr, $noreg, ![[d]], !DIExpression(DW_OP_deref, DW_OP_LLVM_fragment, 32, 32) 319; CHECK-NEXT: DBG_VALUE 11, $noreg, ![[f]], !DIExpression(DW_OP_LLVM_fragment, 32, 32) 320} 321 322declare !dbg !54 void @_Z4calli(i32 noundef) local_unnamed_addr #1 323declare void @llvm.dbg.declare(metadata, metadata, metadata) 324declare void @llvm.dbg.value(metadata, metadata, metadata) 325declare void @llvm.dbg.assign(metadata, metadata, metadata, metadata, metadata, metadata) 326 327!llvm.dbg.cu = !{!2} 328!llvm.module.flags = !{!10, !11, !12, !13, !14, !15, !1000} 329!llvm.ident = !{!16} 330 331!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) 332!1 = distinct !DIGlobalVariable(name: "g_a", scope: !2, file: !3, line: 1, type: !7, isLocal: false, isDefinition: true) 333!2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !3, producer: "clang version 16.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, globals: !4, splitDebugInlining: false, nameTableKind: None) 334!3 = !DIFile(filename: "test.cpp", directory: "/") 335!4 = !{!0, !5, !8} 336!5 = !DIGlobalVariableExpression(var: !6, expr: !DIExpression()) 337!6 = distinct !DIGlobalVariable(name: "g_b", scope: !2, file: !3, line: 1, type: !7, isLocal: false, isDefinition: true) 338!7 = !DIBasicType(name: "long long", size: 64, encoding: DW_ATE_signed) 339!8 = !DIGlobalVariableExpression(var: !9, expr: !DIExpression()) 340!9 = distinct !DIGlobalVariable(name: "g_c", scope: !2, file: !3, line: 1, type: !7, isLocal: false, isDefinition: true) 341!10 = !{i32 7, !"Dwarf Version", i32 5} 342!11 = !{i32 2, !"Debug Info Version", i32 3} 343!12 = !{i32 1, !"wchar_size", i32 4} 344!13 = !{i32 8, !"PIC Level", i32 2} 345!14 = !{i32 7, !"PIE Level", i32 2} 346!15 = !{i32 7, !"uwtable", i32 2} 347!16 = !{!"clang version 16.0.0"} 348!17 = distinct !DISubprogram(name: "fun", linkageName: "_Z3funii", scope: !3, file: !3, line: 3, type: !18, scopeLine: 3, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !20) 349!18 = !DISubroutineType(types: !19) 350!19 = !{!7, !7, !7} 351!20 = !{!21, !22} 352!21 = !DILocalVariable(name: "a", arg: 1, scope: !17, file: !3, line: 3, type: !7) 353!22 = !DILocalVariable(name: "b", arg: 2, scope: !17, file: !3, line: 3, type: !7) 354!23 = !DILocation(line: 0, scope: !17) 355!24 = !DILocation(line: 4, column: 3, scope: !17) 356!25 = !DILocation(line: 5, column: 5, scope: !26) 357!26 = distinct !DILexicalBlock(scope: !17, file: !3, line: 4, column: 6) 358!27 = !DILocation(line: 7, column: 11, scope: !28) 359!28 = distinct !DILexicalBlock(scope: !29, file: !3, line: 7, column: 11) 360!29 = distinct !DILexicalBlock(scope: !26, file: !3, line: 6, column: 8) 361!34 = !DILocation(line: 6, column: 5, scope: !26) 362!35 = !DILocation(line: 7, column: 11, scope: !29) 363!36 = !DILocation(line: 8, column: 11, scope: !37) 364!37 = distinct !DILexicalBlock(scope: !28, file: !3, line: 7, column: 16) 365!38 = !DILocation(line: 9, column: 9, scope: !37) 366!39 = !DILocation(line: 10, column: 7, scope: !37) 367!40 = !DILocation(line: 11, column: 11, scope: !41) 368!41 = distinct !DILexicalBlock(scope: !28, file: !3, line: 10, column: 14) 369!42 = !DILocation(line: 0, scope: !28) 370!43 = !DILocation(line: 13, column: 14, scope: !26) 371!44 = !DILocation(line: 13, column: 5, scope: !29) 372!45 = distinct !{!45, !34, !46, !47} 373!46 = !DILocation(line: 13, column: 17, scope: !26) 374!47 = !{!"llvm.loop.mustprogress"} 375!48 = !DILocation(line: 14, column: 12, scope: !17) 376!49 = !DILocation(line: 14, column: 3, scope: !26) 377!50 = distinct !{!50, !24, !51, !47} 378!51 = !DILocation(line: 14, column: 15, scope: !17) 379!52 = !DILocation(line: 15, column: 12, scope: !17) 380!53 = !DILocation(line: 15, column: 3, scope: !17) 381!54 = !DISubprogram(name: "call", linkageName: "_Z4calli", scope: !3, file: !3, line: 2, type: !55, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !57) 382!55 = !DISubroutineType(types: !56) 383!56 = !{null, !7} 384!57 = !{} 385!58 = distinct !DIAssignID() 386!63 = distinct !DIAssignID() 387!64 = distinct !DIAssignID() 388!65 = distinct !DIAssignID() 389!66 = distinct !DIAssignID() 390!67 = !DILocalVariable(name: "c", scope: !17, file: !3, line: 3, type: !7) 391!68 = distinct !DIAssignID() 392!69 = distinct !DIAssignID() 393!70 = distinct !DIAssignID() 394!71 = distinct !DIAssignID() 395!72 = !DILocalVariable(name: "d", scope: !17, file: !3, line: 3, type: !7) 396!73 = distinct !DIAssignID() 397!74 = distinct !DIAssignID() 398!75 = !DILocalVariable(name: "e", scope: !17, file: !3, line: 3, type: !7) 399!76 = distinct !DIAssignID() 400!77 = distinct !DIAssignID() 401!78 = distinct !DIAssignID() 402!79 = !DILocalVariable(name: "f", scope: !17, file: !3, line: 3, type: !7) 403!80 = distinct !DIAssignID() 404!81 = distinct !DIAssignID() 405!82 = !DILocalVariable(name: "g", scope: !17, file: !3, line: 3, type: !7) 406!83 = distinct !DIAssignID() 407!84 = distinct !DIAssignID() 408!1000 = !{i32 7, !"debug-info-assignment-tracking", i1 true} 409