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[Assignment Tracking] Replace undef debug info with poison (#129755)
`undef` debug info can be replaced with `poison` debug info.
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8 files changed

+41
-41
lines changed

8 files changed

+41
-41
lines changed

‎clang/test/CodeGen/assignment-tracking/assignment-tracking.cpp‎

Lines changed: 11 additions & 11 deletions
Original file line numberDiff line numberDiff line change
@@ -20,24 +20,24 @@ Large L;
2020
void zeroInit() { int Z[3] = {0, 0, 0}; }
2121
// CHECK-LABEL: define dso_local void @_Z8zeroInitv
2222
// CHECK: %Z = alloca [3 x i32], align 4, !DIAssignID ![[ID_0:[0-9]+]]
23-
// CHECK-NEXT: #dbg_assign(i1 undef, ![[VAR_0:[0-9]+]], !DIExpression(), ![[ID_0]], ptr %Z, !DIExpression(),
23+
// CHECK-NEXT: #dbg_assign(i1 poison, ![[VAR_0:[0-9]+]], !DIExpression(), ![[ID_0]], ptr %Z, !DIExpression(),
2424
// CHECK: @llvm.memset{{.*}}, !DIAssignID ![[ID_1:[0-9]+]]
2525
// CHECK-NEXT: #dbg_assign(i8 0, ![[VAR_0]], !DIExpression(), ![[ID_1]], ptr %Z, !DIExpression(),
2626

2727
void memcpyInit() { int A[4] = {0, 1, 2, 3}; }
2828
// CHECK-LABEL: define dso_local void @_Z10memcpyInitv
2929
// CHECK: %A = alloca [4 x i32], align 16, !DIAssignID ![[ID_2:[0-9]+]]
30-
// CHECK-NEXT: #dbg_assign(i1 undef, ![[VAR_1:[0-9]+]], !DIExpression(), ![[ID_2]], ptr %A, !DIExpression(),
30+
// CHECK-NEXT: #dbg_assign(i1 poison, ![[VAR_1:[0-9]+]], !DIExpression(), ![[ID_2]], ptr %A, !DIExpression(),
3131
// CHECK: @llvm.memcpy{{.*}}, !DIAssignID ![[ID_3:[0-9]+]]
32-
// CHECK-NEXT: #dbg_assign(i1 undef, ![[VAR_1]], !DIExpression(), ![[ID_3]], ptr %A, !DIExpression(),
32+
// CHECK-NEXT: #dbg_assign(i1 poison, ![[VAR_1]], !DIExpression(), ![[ID_3]], ptr %A, !DIExpression(),
3333

3434
void setField() {
3535
Outer O;
3636
O.A.B = Value;
3737
}
3838
// CHECK-LABEL: define dso_local void @_Z8setFieldv
3939
// CHECK: %O = alloca %struct.Outer, align 4, !DIAssignID ![[ID_4:[0-9]+]]
40-
// CHECK-NEXT: #dbg_assign(i1 undef, ![[VAR_2:[0-9]+]], !DIExpression(), ![[ID_4]], ptr %O, !DIExpression(),
40+
// CHECK-NEXT: #dbg_assign(i1 poison, ![[VAR_2:[0-9]+]], !DIExpression(), ![[ID_4]], ptr %O, !DIExpression(),
4141
// CHECK: store i32 %0, ptr %B, align 4,{{.*}}!DIAssignID ![[ID_5:[0-9]+]]
4242
// CHECK-NEXT: #dbg_assign(i32 %0, ![[VAR_2]], !DIExpression(DW_OP_LLVM_fragment, 32, 32), ![[ID_5]], ptr %B, !DIExpression(),
4343

@@ -47,7 +47,7 @@ void unknownOffset() {
4747
}
4848
// CHECK-LABEL: define dso_local void @_Z13unknownOffsetv
4949
// CHECK: %A = alloca [2 x i32], align 4, !DIAssignID ![[ID_6:[0-9]+]]
50-
// CHECK-NEXT: #dbg_assign(i1 undef, ![[VAR_3:[0-9]+]], !DIExpression(), ![[ID_6]], ptr %A, !DIExpression(),
50+
// CHECK-NEXT: #dbg_assign(i1 poison, ![[VAR_3:[0-9]+]], !DIExpression(), ![[ID_6]], ptr %A, !DIExpression(),
5151

5252
Inner sharedAlloca() {
5353
if (Cond) {
@@ -60,16 +60,16 @@ Inner sharedAlloca() {
6060
}
6161
// CHECK-LABEL: define dso_local i64 @_Z12sharedAllocav
6262
// CHECK: %retval = alloca %struct.Inner, align 4, !DIAssignID ![[ID_7:[0-9]+]]
63-
// CHECK-NEXT: #dbg_assign(i1 undef, ![[VAR_4:[0-9]+]], !DIExpression(), ![[ID_7]], ptr %retval, !DIExpression(),
64-
// CHECK-NEXT: #dbg_assign(i1 undef, ![[VAR_5:[0-9]+]], !DIExpression(), ![[ID_7]], ptr %retval, !DIExpression(),
63+
// CHECK-NEXT: #dbg_assign(i1 poison, ![[VAR_4:[0-9]+]], !DIExpression(), ![[ID_7]], ptr %retval, !DIExpression(),
64+
// CHECK-NEXT: #dbg_assign(i1 poison, ![[VAR_5:[0-9]+]], !DIExpression(), ![[ID_7]], ptr %retval, !DIExpression(),
6565
// CHECK: if.then:
6666
// CHECK: call void @llvm.memcpy{{.*}}, !DIAssignID ![[ID_8:[0-9]+]]
67-
// CHECK-NEXT: #dbg_assign(i1 undef, ![[VAR_4]], !DIExpression(), ![[ID_8]], ptr %retval, !DIExpression(),
68-
// CHECK-NEXT: #dbg_assign(i1 undef, ![[VAR_5]], !DIExpression(), ![[ID_8]], ptr %retval, !DIExpression(),
67+
// CHECK-NEXT: #dbg_assign(i1 poison, ![[VAR_4]], !DIExpression(), ![[ID_8]], ptr %retval, !DIExpression(),
68+
// CHECK-NEXT: #dbg_assign(i1 poison, ![[VAR_5]], !DIExpression(), ![[ID_8]], ptr %retval, !DIExpression(),
6969
// CHECK: if.else:
7070
// CHECK: call void @llvm.memcpy{{.*}}, !DIAssignID ![[ID_9:[0-9]+]]
71-
// CHECK-NEXT: #dbg_assign(i1 undef, ![[VAR_4]], !DIExpression(), ![[ID_9]], ptr %retval, !DIExpression(),
72-
// CHECK-NEXT: #dbg_assign(i1 undef, ![[VAR_5]], !DIExpression(), ![[ID_9]], ptr %retval, !DIExpression(),
71+
// CHECK-NEXT: #dbg_assign(i1 poison, ![[VAR_4]], !DIExpression(), ![[ID_9]], ptr %retval, !DIExpression(),
72+
// CHECK-NEXT: #dbg_assign(i1 poison, ![[VAR_5]], !DIExpression(), ![[ID_9]], ptr %retval, !DIExpression(),
7373

7474
Large sret() {
7575
Large X = L;

‎clang/test/CodeGen/assignment-tracking/memcpy-fragment.cpp‎

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -23,7 +23,7 @@ void fragmentWhole()
2323
__builtin_memcpy(&dest.ch, &src, sizeof(char));
2424
}
2525
// CHECK: call void @llvm.memcpy{{.+}}, !DIAssignID ![[memberID:[0-9]+]]
26-
// CHECK-NEXT: #dbg_assign({{.*}}undef, !{{[0-9]+}}, !DIExpression(DW_OP_LLVM_fragment, 32, 8), ![[memberID]], ptr %ch, !DIExpression(),
26+
// CHECK-NEXT: #dbg_assign({{.*}}poison, !{{[0-9]+}}, !DIExpression(DW_OP_LLVM_fragment, 32, 8), ![[memberID]], ptr %ch, !DIExpression(),
2727

2828
// Write starting at a field and overlapping part of another.
2929
void fragmentWholeToPartial()
@@ -38,7 +38,7 @@ void fragmentWholeToPartial()
3838
__builtin_memcpy(&dest.num1, &src, 5);
3939
}
4040
// CHECK: call void @llvm.memcpy{{.+}}, !DIAssignID ![[exceed:[0-9]+]]
41-
// CHECK-NEXT: #dbg_assign({{.*}}undef, !{{[0-9]+}}, !DIExpression(DW_OP_LLVM_fragment, 0, 40), ![[exceed]], ptr %num1, !DIExpression(),
41+
// CHECK-NEXT: #dbg_assign({{.*}}poison, !{{[0-9]+}}, !DIExpression(DW_OP_LLVM_fragment, 0, 40), ![[exceed]], ptr %num1, !DIExpression(),
4242

4343
// Write starting between fields.
4444
void fragmentPartialToWhole()
@@ -54,4 +54,4 @@ void fragmentPartialToWhole()
5454
__builtin_memcpy((char*)&(dest.num2) + 3, &src, 5);
5555
}
5656
// CHECK: call void @llvm.memcpy{{.+}}, !DIAssignID ![[addendID:[0-9]+]]
57-
// CHECK-NEXT: #dbg_assign({{.*}}undef, !{{.*}}, !DIExpression(DW_OP_LLVM_fragment, 56, 40), ![[addendID]], ptr %add.ptr, !DIExpression(),
57+
// CHECK-NEXT: #dbg_assign({{.*}}poison, !{{.*}}, !DIExpression(DW_OP_LLVM_fragment, 56, 40), ![[addendID]], ptr %add.ptr, !DIExpression(),

‎llvm/lib/IR/DebugInfo.cpp‎

Lines changed: 6 additions & 6 deletions
Original file line numberDiff line numberDiff line change
@@ -2133,8 +2133,8 @@ void at::trackAssignments(Function::iterator Start, Function::iterator End,
21332133
auto &Ctx = Start->getContext();
21342134
auto &Module = *Start->getModule();
21352135

2136-
// Undef type doesn't matter, so long as it isn't void. Let's just use i1.
2137-
auto *Undef = UndefValue::get(Type::getInt1Ty(Ctx));
2136+
// Poison type doesn't matter, so long as it isn't void. Let's just use i1.
2137+
auto *Poison = PoisonValue::get(Type::getInt1Ty(Ctx));
21382138
DIBuilder DIB(Module, /*AllowUnresolved*/ false);
21392139

21402140
// Scan the instructions looking for stores to local variables' storage.
@@ -2148,9 +2148,9 @@ void at::trackAssignments(Function::iterator Start, Function::iterator End,
21482148
if (auto *AI = dyn_cast<AllocaInst>(&I)) {
21492149
// We want to track the variable's stack home from its alloca's
21502150
// position onwards so we treat it as an assignment (where the stored
2151-
// value is Undef).
2151+
// value is poison).
21522152
Info = getAssignmentInfo(DL, AI);
2153-
ValueComponent = Undef;
2153+
ValueComponent = Poison;
21542154
DestComponent = AI;
21552155
} else if (auto *SI = dyn_cast<StoreInst>(&I)) {
21562156
Info = getAssignmentInfo(DL, SI);
@@ -2159,7 +2159,7 @@ void at::trackAssignments(Function::iterator Start, Function::iterator End,
21592159
} else if (auto *MI = dyn_cast<MemTransferInst>(&I)) {
21602160
Info = getAssignmentInfo(DL, MI);
21612161
// May not be able to represent this value easily.
2162-
ValueComponent = Undef;
2162+
ValueComponent = Poison;
21632163
DestComponent = MI->getOperand(0);
21642164
} else if (auto *MI = dyn_cast<MemSetInst>(&I)) {
21652165
Info = getAssignmentInfo(DL, MI);
@@ -2169,7 +2169,7 @@ void at::trackAssignments(Function::iterator Start, Function::iterator End,
21692169
if (ConstValue && ConstValue->isZero())
21702170
ValueComponent = ConstValue;
21712171
else
2172-
ValueComponent = Undef;
2172+
ValueComponent = Poison;
21732173
DestComponent = MI->getOperand(0);
21742174
} else {
21752175
// Not a store-like instruction.

‎llvm/test/DebugInfo/Generic/assignment-tracking/declare-to-assign/long-double-x87.ll‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -11,7 +11,7 @@
1111
;; alloca (80 bits) can be represented with assignment tracking. Create a
1212
;; fragment for the dbg.assign for bits 0-80.
1313

14-
; CHECK: #dbg_assign(i1 undef, ![[#]], !DIExpression(DW_OP_LLVM_fragment, 0, 80), ![[#]], ptr %f, !DIExpression(),
14+
; CHECK: #dbg_assign(i1 poison, ![[#]], !DIExpression(DW_OP_LLVM_fragment, 0, 80), ![[#]], ptr %f, !DIExpression(),
1515

1616
define dso_local void @_Z3funv() #0 !dbg !10 {
1717
entry:

‎llvm/test/DebugInfo/Generic/assignment-tracking/declare-to-assign/structured-bindings.ll‎

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -13,8 +13,8 @@
1313
;; }
1414

1515
; CHECK: %0 = alloca %struct.two, align 4, !DIAssignID ![[ID1:[0-9]+]]
16-
; CHECK-NEXT: #dbg_assign(i1 undef, ![[AGGR:[0-9]+]], !DIExpression(), ![[ID1]], ptr %0, !DIExpression(),
17-
; CHECK-NEXT: #dbg_assign(i1 undef, ![[A:[0-9]+]], !DIExpression(), ![[ID1]], ptr %0, !DIExpression(),
16+
; CHECK-NEXT: #dbg_assign(i1 poison, ![[AGGR:[0-9]+]], !DIExpression(), ![[ID1]], ptr %0, !DIExpression(),
17+
; CHECK-NEXT: #dbg_assign(i1 poison, ![[A:[0-9]+]], !DIExpression(), ![[ID1]], ptr %0, !DIExpression(),
1818
; CHECK-NEXT: #dbg_declare(ptr %0, ![[B:[0-9]+]], !DIExpression(DW_OP_plus_uconst, 4),
1919

2020
; CHECK: store i64 %call, ptr %0, align 4,{{.*}}, !DIAssignID ![[ID2:[0-9]+]]

‎llvm/test/DebugInfo/Generic/assignment-tracking/declare-to-assign/var-not-alloca-sized.ll‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -17,7 +17,7 @@ entry:
1717
%0 = alloca [4 x i16], align 4
1818
call void @llvm.dbg.declare(metadata ptr %0, metadata !15, metadata !DIExpression()), !dbg !16
1919
; CHECK: %0 = alloca [4 x i16], align 4, !DIAssignID ![[ID1:[0-9]+]]
20-
; CHECK-NEXT: #dbg_assign(i1 undef, ![[#]], !DIExpression(), ![[ID1]], ptr %0, !DIExpression(),
20+
; CHECK-NEXT: #dbg_assign(i1 poison, ![[#]], !DIExpression(), ![[ID1]], ptr %0, !DIExpression(),
2121
%a = getelementptr inbounds [4 x i16], ptr %0, i32 0, i32 0
2222
%a.5 = getelementptr inbounds [4 x i16], ptr %0, i32 0, i32 1
2323
%b = getelementptr inbounds [4 x i16], ptr %0, i32 0, i32 2

‎llvm/test/DebugInfo/Generic/assignment-tracking/track-assignments.ll‎

Lines changed: 14 additions & 14 deletions
Original file line numberDiff line numberDiff line change
@@ -92,7 +92,7 @@ define dso_local void @_Z8zeroInitv() #0 !dbg !31 {
9292
entry:
9393
%Z = alloca [3 x i32], align 4
9494
; CHECK: %Z = alloca [3 x i32], align 4, !DIAssignID ![[ID_0:[0-9]+]]
95-
; CHECK-NEXT: #dbg_assign(i1 undef, ![[VAR_0:[0-9]+]], !DIExpression(), ![[ID_0]], ptr %Z, !DIExpression(),
95+
; CHECK-NEXT: #dbg_assign(i1 poison, ![[VAR_0:[0-9]+]], !DIExpression(), ![[ID_0]], ptr %Z, !DIExpression(),
9696
%0 = bitcast ptr %Z to ptr, !dbg !39
9797
call void @llvm.lifetime.start.p0(i64 12, ptr %0) #5, !dbg !39
9898
call void @llvm.dbg.declare(metadata ptr %Z, metadata !35, metadata !DIExpression()), !dbg !40
@@ -110,21 +110,21 @@ entry:
110110
;; void memcpyInit() { int A[4] = {0, 1, 2, 3}; }
111111
;;
112112
;; Check that we get two dbg.assign intrinsics. The first linked to the alloca
113-
;; and the second linked to the initialising memcpy, which should have an Undef
113+
;; and the second linked to the initialising memcpy, which should have a poison
114114
;; value component.
115115
define dso_local void @_Z10memcpyInitv() #0 !dbg !42 {
116116
; CHECK-LABEL: define dso_local void @_Z10memcpyInitv
117117
entry:
118118
%A = alloca [4 x i32], align 16
119119
; CHECK: %A = alloca [4 x i32], align 16, !DIAssignID ![[ID_2:[0-9]+]]
120-
; CHECK-NEXT: #dbg_assign(i1 undef, ![[VAR_1:[0-9]+]], !DIExpression(), ![[ID_2]], ptr %A, !DIExpression(),
120+
; CHECK-NEXT: #dbg_assign(i1 poison, ![[VAR_1:[0-9]+]], !DIExpression(), ![[ID_2]], ptr %A, !DIExpression(),
121121
%0 = bitcast ptr %A to ptr, !dbg !48
122122
call void @llvm.lifetime.start.p0(i64 16, ptr %0) #5, !dbg !48
123123
call void @llvm.dbg.declare(metadata ptr %A, metadata !44, metadata !DIExpression()), !dbg !49
124124
%1 = bitcast ptr %A to ptr, !dbg !49
125125
call void @llvm.memcpy.p0.p0.i64(ptr align 16 %1, ptr align 16 @__const._Z10memcpyInitv.A, i64 16, i1 false), !dbg !49
126126
; CHECK: @llvm.memcpy{{.*}}, !DIAssignID ![[ID_3:[0-9]+]]
127-
; CHECK-NEXT: #dbg_assign(i1 undef, ![[VAR_1]], !DIExpression(), ![[ID_3]], ptr %1, !DIExpression(),
127+
; CHECK-NEXT: #dbg_assign(i1 poison, ![[VAR_1]], !DIExpression(), ![[ID_3]], ptr %1, !DIExpression(),
128128
%2 = bitcast ptr %A to ptr, !dbg !50
129129
call void @llvm.lifetime.end.p0(i64 16, ptr %2) #5, !dbg !50
130130
ret void, !dbg !50
@@ -146,7 +146,7 @@ define dso_local void @_Z8setFieldv() #0 !dbg !51 {
146146
entry:
147147
%O = alloca %struct.Outer, align 4
148148
; CHECK: %O = alloca %struct.Outer, align 4, !DIAssignID ![[ID_4:[0-9]+]]
149-
; CHECK-NEXT: #dbg_assign(i1 undef, ![[VAR_2:[0-9]+]], !DIExpression(), ![[ID_4]], ptr %O, !DIExpression(),
149+
; CHECK-NEXT: #dbg_assign(i1 poison, ![[VAR_2:[0-9]+]], !DIExpression(), ![[ID_4]], ptr %O, !DIExpression(),
150150
%0 = bitcast ptr %O to ptr, !dbg !58
151151
call void @llvm.lifetime.start.p0(i64 16, ptr %0) #5, !dbg !58
152152
call void @llvm.dbg.declare(metadata ptr %O, metadata !53, metadata !DIExpression()), !dbg !59
@@ -178,7 +178,7 @@ define dso_local void @_Z13unknownOffsetv() #0 !dbg !72 {
178178
entry:
179179
%A = alloca [2 x i32], align 4
180180
; CHECK: %A = alloca [2 x i32], align 4, !DIAssignID ![[ID_6:[0-9]+]]
181-
; CHECK-NEXT: #dbg_assign(i1 undef, ![[VAR_3:[0-9]+]], !DIExpression(), ![[ID_6]], ptr %A, !DIExpression(),
181+
; CHECK-NEXT: #dbg_assign(i1 poison, ![[VAR_3:[0-9]+]], !DIExpression(), ![[ID_6]], ptr %A, !DIExpression(),
182182
%0 = bitcast ptr %A to ptr, !dbg !78
183183
call void @llvm.lifetime.start.p0(i64 8, ptr %0) #5, !dbg !78
184184
call void @llvm.dbg.declare(metadata ptr %A, metadata !74, metadata !DIExpression()), !dbg !79
@@ -209,8 +209,8 @@ define dso_local i64 @_Z12sharedAllocav() #0 !dbg !85 {
209209
entry:
210210
%retval = alloca %struct.Inner, align 4
211211
; CHECK: %retval = alloca %struct.Inner, align 4, !DIAssignID ![[ID_7:[0-9]+]]
212-
; CHECK-NEXT: #dbg_assign(i1 undef, ![[VAR_4:[0-9]+]], !DIExpression(), ![[ID_7]], ptr %retval, !DIExpression(),
213-
; CHECK-NEXT: #dbg_assign(i1 undef, ![[VAR_5:[0-9]+]], !DIExpression(), ![[ID_7]], ptr %retval, !DIExpression(),
212+
; CHECK-NEXT: #dbg_assign(i1 poison, ![[VAR_4:[0-9]+]], !DIExpression(), ![[ID_7]], ptr %retval, !DIExpression(),
213+
; CHECK-NEXT: #dbg_assign(i1 poison, ![[VAR_5:[0-9]+]], !DIExpression(), ![[ID_7]], ptr %retval, !DIExpression(),
214214
%0 = load i32, ptr @Cond, align 4, !dbg !94, !tbaa !61
215215
%tobool = icmp ne i32 %0, 0, !dbg !94
216216
br i1 %tobool, label %if.then, label %if.else, !dbg !95
@@ -221,8 +221,8 @@ if.then: ; preds = %entry
221221
%1 = bitcast ptr %retval to ptr, !dbg !97
222222
call void @llvm.memcpy.p0.p0.i64(ptr align 4 %1, ptr align 4 @InnerA, i64 8, i1 false), !dbg !97, !tbaa.struct !98
223223
; CHECK: call void @llvm.memcpy{{.*}}, !DIAssignID ![[ID_8:[0-9]+]]
224-
; CHECK-NEXT: #dbg_assign(i1 undef, ![[VAR_4]], !DIExpression(), ![[ID_8]], ptr %1, !DIExpression(),
225-
; CHECK-NEXT: #dbg_assign(i1 undef, ![[VAR_5]], !DIExpression(), ![[ID_8]], ptr %1, !DIExpression(),
224+
; CHECK-NEXT: #dbg_assign(i1 poison, ![[VAR_4]], !DIExpression(), ![[ID_8]], ptr %1, !DIExpression(),
225+
; CHECK-NEXT: #dbg_assign(i1 poison, ![[VAR_5]], !DIExpression(), ![[ID_8]], ptr %1, !DIExpression(),
226226
br label %return, !dbg !99
227227

228228
if.else: ; preds = %entry
@@ -231,8 +231,8 @@ if.else: ; preds = %entry
231231
%2 = bitcast ptr %retval to ptr, !dbg !101
232232
call void @llvm.memcpy.p0.p0.i64(ptr align 4 %2, ptr align 4 @InnerB, i64 8, i1 false), !dbg !101, !tbaa.struct !98
233233
; CHECK: call void @llvm.memcpy{{.*}}, !DIAssignID ![[ID_9:[0-9]+]]
234-
; CHECK-NEXT: #dbg_assign(i1 undef, ![[VAR_4]], !DIExpression(), ![[ID_9]], ptr %2, !DIExpression(),
235-
; CHECK-NEXT: #dbg_assign(i1 undef, ![[VAR_5]], !DIExpression(), ![[ID_9]], ptr %2, !DIExpression(),
234+
; CHECK-NEXT: #dbg_assign(i1 poison, ![[VAR_4]], !DIExpression(), ![[ID_9]], ptr %2, !DIExpression(),
235+
; CHECK-NEXT: #dbg_assign(i1 poison, ![[VAR_5]], !DIExpression(), ![[ID_9]], ptr %2, !DIExpression(),
236236
br label %return, !dbg !102
237237

238238
return: ; preds = %if.else, %if.then
@@ -312,10 +312,10 @@ define dso_local noundef i32 @_Z3funi(i32 noundef %X) !dbg !139 {
312312
entry:
313313
%Y.addr.i = alloca i32, align 4
314314
; CHECK: %Y.addr.i = alloca i32, align 4, !DIAssignID ![[ID_10:[0-9]+]]
315-
; CHECK-NEXT: #dbg_assign(i1 undef, ![[VAR_6:[0-9]+]], !DIExpression(), ![[ID_10]], ptr %Y.addr.i, !DIExpression(), ![[DBG_0:[0-9]+]]
315+
; CHECK-NEXT: #dbg_assign(i1 poison, ![[VAR_6:[0-9]+]], !DIExpression(), ![[ID_10]], ptr %Y.addr.i, !DIExpression(), ![[DBG_0:[0-9]+]]
316316
%X.addr = alloca i32, align 4
317317
; CHECK-NEXT: %X.addr = alloca i32, align 4, !DIAssignID ![[ID_11:[0-9]+]]
318-
; CHECK-NEXT: #dbg_assign(i1 undef, ![[VAR_7:[0-9]+]], !DIExpression(), ![[ID_11]], ptr %X.addr, !DIExpression(), ![[DBG_1:[0-9]+]]
318+
; CHECK-NEXT: #dbg_assign(i1 poison, ![[VAR_7:[0-9]+]], !DIExpression(), ![[ID_11]], ptr %X.addr, !DIExpression(), ![[DBG_1:[0-9]+]]
319319
store i32 %X, ptr %X.addr, align 4
320320
; CHECK-NEXT: store i32 %X, ptr %X.addr, align 4, !DIAssignID ![[ID_12:[0-9]+]]
321321
; CHECK-NEXT: #dbg_assign(i32 %X, ![[VAR_7]], !DIExpression(), ![[ID_12]], ptr %X.addr, !DIExpression(), ![[DBG_1]]

‎llvm/test/DebugInfo/Generic/sroa-alloca-offset.ll‎

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -98,15 +98,15 @@ entry:
9898
; OLD-NEXT: #dbg_value(i32 %[[bb_reg]], ![[y1]], !DIExpression(DW_OP_LLVM_fragment, 32, 32),
9999
; OLD-NEXT: #dbg_value(i32 %[[bb_reg]], ![[A1]], !DIExpression(DW_OP_LLVM_fragment, 96, 32),
100100

101-
; NEW-NEXT: #dbg_assign(i1 undef, ![[x1:[0-9]+]], !DIExpression(DW_OP_LLVM_fragment, 32, 32), ![[#]], ptr %[[ab_ba_addr]], !DIExpression(),
102-
; NEW-NEXT: #dbg_assign(i1 undef, ![[A1:[0-9]+]], !DIExpression(DW_OP_LLVM_fragment, 32, 64), ![[#]], ptr %[[ab_ba_addr]], !DIExpression(),
101+
; NEW-NEXT: #dbg_assign(i1 poison, ![[x1:[0-9]+]], !DIExpression(DW_OP_LLVM_fragment, 32, 32), ![[#]], ptr %[[ab_ba_addr]], !DIExpression(),
102+
; NEW-NEXT: #dbg_assign(i1 poison, ![[A1:[0-9]+]], !DIExpression(DW_OP_LLVM_fragment, 32, 64), ![[#]], ptr %[[ab_ba_addr]], !DIExpression(),
103103
; NEW-NEXT: #dbg_declare(ptr %[[ab_ba_addr]], ![[y1:[0-9]+]], !DIExpression(DW_OP_plus_uconst, 4, DW_OP_LLVM_fragment, 0, 32),
104104
; NEW-NEXT: %[[aa_reg:.*]] = load i32, ptr @gf, align 4
105105
; NEW-NEXT: llvm.memcpy{{.*}}(ptr align 4 %[[ab_ba_addr]], ptr align 4 getelementptr inbounds (i8, ptr @gf, i64 4), i64 8, i1 false){{.*}}, !DIAssignID ![[ID:[0-9]+]]
106106
; NEW-NEXT: %[[bb_reg:.*]] = load i32, ptr getelementptr inbounds (i8, ptr @gf, i64 12), align 4
107107
; NEW-NEXT: #dbg_value(i32 %[[bb_reg]], ![[y1:[0-9]+]], !DIExpression(DW_OP_LLVM_fragment, 32, 32),
108108
; NEW-NEXT: #dbg_value(i32 %[[aa_reg]], ![[A1]], !DIExpression(DW_OP_LLVM_fragment, 0, 32),
109-
; NEW-NEXT: #dbg_assign(i1 undef, ![[A1]], !DIExpression(DW_OP_LLVM_fragment, 32, 64), ![[ID]], ptr %[[ab_ba_addr]], !DIExpression(),
109+
; NEW-NEXT: #dbg_assign(i1 poison, ![[A1]], !DIExpression(DW_OP_LLVM_fragment, 32, 64), ![[ID]], ptr %[[ab_ba_addr]], !DIExpression(),
110110
; NEW-NEXT: #dbg_value(i32 %[[bb_reg]], ![[A1]], !DIExpression(DW_OP_LLVM_fragment, 96, 32),
111111
; NEW-NEXT: #dbg_value(i32 %[[aa_reg]], ![[x1]], !DIExpression(DW_OP_LLVM_fragment, 0, 32),
112112
define dso_local noundef i32 @_Z4fun2v() #0 !dbg !48 {

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