[llvm] [DebugInfo][ConstraintElimination] Fix debug value loss in replacing comparisons with the speculated constants (PR #136839)
Shan Huang via llvm-commits
llvm-commits at lists.llvm.org
Wed Apr 23 19:14:26 PDT 2025
https://github.com/Apochens updated https://github.com/llvm/llvm-project/pull/136839
>From af4944f3a22534cf14695f07a4915c0b6ffbc6b9 Mon Sep 17 00:00:00 2001
From: Apochens <apowenq at gmail.com>
Date: Wed, 23 Apr 2025 10:05:10 +0000
Subject: [PATCH 1/3] Fix #135736: salvage debug values with replaced constants
---
.../Scalar/ConstraintElimination.cpp | 15 +++-
...salvage-dbg-values-replaced-by-constant.ll | 80 +++++++++++++++++++
2 files changed, 94 insertions(+), 1 deletion(-)
create mode 100644 llvm/test/Transforms/ConstraintElimination/salvage-dbg-values-replaced-by-constant.ll
diff --git a/llvm/lib/Transforms/Scalar/ConstraintElimination.cpp b/llvm/lib/Transforms/Scalar/ConstraintElimination.cpp
index 58d705eb6aa96..4142c8aa3100d 100644
--- a/llvm/lib/Transforms/Scalar/ConstraintElimination.cpp
+++ b/llvm/lib/Transforms/Scalar/ConstraintElimination.cpp
@@ -25,6 +25,7 @@
#include "llvm/Analysis/ValueTracking.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/Dominators.h"
+#include "llvm/IR/DebugInfo.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/InstrTypes.h"
@@ -1454,8 +1455,20 @@ static bool checkAndReplaceCondition(
return ShouldReplace;
});
NumCondsRemoved++;
- if (Cmp->use_empty())
+ if (Cmp->use_empty()) {
+ SmallVector<DbgVariableIntrinsic *> DbgUsers;
+ SmallVector<DbgVariableRecord *> DVRUsers;
+ findDbgUsers(DbgUsers, Cmp, &DVRUsers);
+
+ for (auto *DVR: DVRUsers) {
+ auto *DTN = DT.getNode(DVR->getParent());
+ if (!DTN || DTN->getDFSNumIn() < NumIn || DTN->getDFSNumOut() > NumOut)
+ continue;
+ DVR->replaceVariableLocationOp(Cmp, ConstantC);
+ }
+
ToRemove.push_back(Cmp);
+ }
return Changed;
};
diff --git a/llvm/test/Transforms/ConstraintElimination/salvage-dbg-values-replaced-by-constant.ll b/llvm/test/Transforms/ConstraintElimination/salvage-dbg-values-replaced-by-constant.ll
new file mode 100644
index 0000000000000..75fae6f93992b
--- /dev/null
+++ b/llvm/test/Transforms/ConstraintElimination/salvage-dbg-values-replaced-by-constant.ll
@@ -0,0 +1,80 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
+; RUN: opt < %s -passes=constraint-elimination -S | FileCheck %s
+
+; Check that checkAndReplaceCondition() salvages the debug value information after replacing
+; the conditions (%t.1 in this test) with the speculated constants (GitHub Issue #135736).
+
+define i1 @test_and_ule(i4 %x, i4 %y, i4 %z) !dbg !5 {
+; CHECK-LABEL: define i1 @test_and_ule(
+; CHECK-SAME: i4 [[X:%.*]], i4 [[Y:%.*]], i4 [[Z:%.*]]) !dbg [[DBG5:![0-9]+]] {
+; CHECK-NEXT: [[ENTRY:.*:]]
+; CHECK-NEXT: [[C_1:%.*]] = icmp ule i4 [[X]], [[Y]], !dbg [[DBG11:![0-9]+]]
+; CHECK-NEXT: [[C_2:%.*]] = icmp ule i4 [[Y]], [[Z]], !dbg [[DBG12:![0-9]+]]
+; CHECK-NEXT: [[AND:%.*]] = and i1 [[C_1]], [[C_2]], !dbg [[DBG13:![0-9]+]]
+; CHECK-NEXT: br i1 [[AND]], label %[[THEN:.*]], label %[[EXIT:.*]], !dbg [[DBG14:![0-9]+]]
+; CHECK: [[THEN]]:
+; CHECK-NEXT: #dbg_value(i1 true, [[META9:![0-9]+]], !DIExpression(), [[META15:![0-9]+]])
+; CHECK-NEXT: [[R_1:%.*]] = xor i1 true, true, !dbg [[DBG16:![0-9]+]]
+; CHECK-NEXT: br label %[[EXIT]]
+; CHECK: [[EXIT]]:
+; CHECK-NEXT: #dbg_value(i1 poison, [[META17:![0-9]+]], !DIExpression(), [[META15]])
+; CHECK-NEXT: ret i1 true, !dbg [[DBG18:![0-9]+]]
+;
+entry:
+ %c.1 = icmp ule i4 %x, %y, !dbg !11
+ %c.2 = icmp ule i4 %y, %z, !dbg !12
+ %t.1 = icmp ule i4 %x, %z, !dbg !13
+ %and = and i1 %c.1, %c.2, !dbg !14
+ br i1 %and, label %then, label %exit, !dbg !15
+
+then: ; preds = %entry
+ #dbg_value(i1 %t.1, !9, !DIExpression(), !13)
+ %r.1 = xor i1 %t.1, %t.1, !dbg !16
+ br label %exit
+
+exit: ; preds = %bb1, %entry
+ #dbg_value(i1 %t.1, !17, !DIExpression(), !13)
+ ret i1 true, !dbg !18
+}
+
+!llvm.dbg.cu = !{!0}
+!llvm.debugify = !{!2, !3}
+!llvm.module.flags = !{!4}
+
+!0 = distinct !DICompileUnit(language: DW_LANG_C, file: !1, producer: "debugify", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug)
+!1 = !DIFile(filename: "temp.ll", directory: "/")
+!2 = !{i32 20}
+!3 = !{i32 17}
+!4 = !{i32 2, !"Debug Info Version", i32 3}
+!5 = distinct !DISubprogram(name: "test_and_ule", linkageName: "test_and_ule", scope: null, file: !1, line: 1, type: !6, scopeLine: 1, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !8)
+!6 = !DISubroutineType(types: !7)
+!7 = !{}
+!8 = !{!9}
+!9 = !DILocalVariable(name: "4", scope: !5, file: !1, line: 5, type: !10)
+!10 = !DIBasicType(name: "ty8", size: 8, encoding: DW_ATE_unsigned)
+!11 = !DILocation(line: 1, column: 1, scope: !5)
+!12 = !DILocation(line: 2, column: 1, scope: !5)
+!13 = !DILocation(line: 5, column: 1, scope: !5)
+!14 = !DILocation(line: 3, column: 1, scope: !5)
+!15 = !DILocation(line: 4, column: 1, scope: !5)
+!16 = !DILocation(line: 7, column: 1, scope: !5)
+!17 = !DILocalVariable(name: "6", scope: !5, file: !1, line: 7, type: !10)
+!18 = !DILocation(line: 20, column: 1, scope: !5)
+;.
+; CHECK: [[META0:![0-9]+]] = distinct !DICompileUnit(language: DW_LANG_C, file: [[META1:![0-9]+]], producer: "debugify", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug)
+; CHECK: [[META1]] = !DIFile(filename: "temp.ll", directory: {{.*}})
+; CHECK: [[DBG5]] = distinct !DISubprogram(name: "test_and_ule", linkageName: "test_and_ule", scope: null, file: [[META1]], line: 1, type: [[META6:![0-9]+]], scopeLine: 1, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: [[META0]], retainedNodes: [[META8:![0-9]+]])
+; CHECK: [[META6]] = !DISubroutineType(types: [[META7:![0-9]+]])
+; CHECK: [[META7]] = !{}
+; CHECK: [[META8]] = !{[[META9]]}
+; CHECK: [[META9]] = !DILocalVariable(name: "4", scope: [[DBG5]], file: [[META1]], line: 5, type: [[META10:![0-9]+]])
+; CHECK: [[META10]] = !DIBasicType(name: "ty8", size: 8, encoding: DW_ATE_unsigned)
+; CHECK: [[DBG11]] = !DILocation(line: 1, column: 1, scope: [[DBG5]])
+; CHECK: [[DBG12]] = !DILocation(line: 2, column: 1, scope: [[DBG5]])
+; CHECK: [[DBG13]] = !DILocation(line: 3, column: 1, scope: [[DBG5]])
+; CHECK: [[DBG14]] = !DILocation(line: 4, column: 1, scope: [[DBG5]])
+; CHECK: [[META15]] = !DILocation(line: 5, column: 1, scope: [[DBG5]])
+; CHECK: [[DBG16]] = !DILocation(line: 7, column: 1, scope: [[DBG5]])
+; CHECK: [[META17]] = !DILocalVariable(name: "6", scope: [[DBG5]], file: [[META1]], line: 7, type: [[META10]])
+; CHECK: [[DBG18]] = !DILocation(line: 20, column: 1, scope: [[DBG5]])
+;.
>From 4625651651a18a2c86503c5f36735a89dba0ff81 Mon Sep 17 00:00:00 2001
From: Apochens <apowenq at gmail.com>
Date: Wed, 23 Apr 2025 13:28:45 +0000
Subject: [PATCH 2/3] fix clang-tidy
---
llvm/lib/Transforms/Scalar/ConstraintElimination.cpp | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/llvm/lib/Transforms/Scalar/ConstraintElimination.cpp b/llvm/lib/Transforms/Scalar/ConstraintElimination.cpp
index 4142c8aa3100d..43a465fc7d88f 100644
--- a/llvm/lib/Transforms/Scalar/ConstraintElimination.cpp
+++ b/llvm/lib/Transforms/Scalar/ConstraintElimination.cpp
@@ -1459,8 +1459,8 @@ static bool checkAndReplaceCondition(
SmallVector<DbgVariableIntrinsic *> DbgUsers;
SmallVector<DbgVariableRecord *> DVRUsers;
findDbgUsers(DbgUsers, Cmp, &DVRUsers);
-
- for (auto *DVR: DVRUsers) {
+
+ for (auto *DVR : DVRUsers) {
auto *DTN = DT.getNode(DVR->getParent());
if (!DTN || DTN->getDFSNumIn() < NumIn || DTN->getDFSNumOut() > NumOut)
continue;
>From aab382810212f3312c57316f1c68c47cbfabef44 Mon Sep 17 00:00:00 2001
From: Apochens <apowenq at gmail.com>
Date: Thu, 24 Apr 2025 02:14:08 +0000
Subject: [PATCH 3/3] salvaging debug values outside the if condition and
refine tests
---
.../Scalar/ConstraintElimination.cpp | 33 +++++---
...lvage-dbg-values-replaced-by-constant-2.ll | 83 +++++++++++++++++++
...salvage-dbg-values-replaced-by-constant.ll | 55 +++++-------
3 files changed, 124 insertions(+), 47 deletions(-)
create mode 100644 llvm/test/Transforms/ConstraintElimination/salvage-dbg-values-replaced-by-constant-2.ll
diff --git a/llvm/lib/Transforms/Scalar/ConstraintElimination.cpp b/llvm/lib/Transforms/Scalar/ConstraintElimination.cpp
index 43a465fc7d88f..494ef6c33afaf 100644
--- a/llvm/lib/Transforms/Scalar/ConstraintElimination.cpp
+++ b/llvm/lib/Transforms/Scalar/ConstraintElimination.cpp
@@ -1455,20 +1455,29 @@ static bool checkAndReplaceCondition(
return ShouldReplace;
});
NumCondsRemoved++;
- if (Cmp->use_empty()) {
- SmallVector<DbgVariableIntrinsic *> DbgUsers;
- SmallVector<DbgVariableRecord *> DVRUsers;
- findDbgUsers(DbgUsers, Cmp, &DVRUsers);
-
- for (auto *DVR : DVRUsers) {
- auto *DTN = DT.getNode(DVR->getParent());
- if (!DTN || DTN->getDFSNumIn() < NumIn || DTN->getDFSNumOut() > NumOut)
- continue;
- DVR->replaceVariableLocationOp(Cmp, ConstantC);
- }
- ToRemove.push_back(Cmp);
+ // Update the debug value records that satisfy the same condition used
+ // in replaceUsesWithIf.
+ SmallVector<DbgVariableIntrinsic *> DbgUsers;
+ SmallVector<DbgVariableRecord *> DVRUsers;
+ findDbgUsers(DbgUsers, Cmp, &DVRUsers);
+
+ for (auto *DVR : DVRUsers) {
+ auto *DTN = DT.getNode(DVR->getParent());
+ if (!DTN || DTN->getDFSNumIn() < NumIn || DTN->getDFSNumOut() > NumOut)
+ continue;
+
+ auto *MarkedI = DVR->getInstruction();
+ if (MarkedI->getParent() == ContextInst->getParent() &&
+ MarkedI->comesBefore(ContextInst))
+ continue;
+
+ DVR->replaceVariableLocationOp(Cmp, ConstantC);
}
+
+ if (Cmp->use_empty())
+ ToRemove.push_back(Cmp);
+
return Changed;
};
diff --git a/llvm/test/Transforms/ConstraintElimination/salvage-dbg-values-replaced-by-constant-2.ll b/llvm/test/Transforms/ConstraintElimination/salvage-dbg-values-replaced-by-constant-2.ll
new file mode 100644
index 0000000000000..0733e36e8b813
--- /dev/null
+++ b/llvm/test/Transforms/ConstraintElimination/salvage-dbg-values-replaced-by-constant-2.ll
@@ -0,0 +1,83 @@
+; RUN: opt < %s -passes=constraint-elimination -S | FileCheck %s
+
+; Check that checkAndReplaceCondition() salvages the debug value information after replacing
+; the conditions (`%c.1` and `%t.2` in this test) with the speculated constants (GitHub Issue
+; #135736).
+; In particular, the debug value record uses should not be replaced if they comes before the
+; context instrtuction (e.g., `%t.2` in this example).
+
+declare void @llvm.assume(i1 noundef) #0
+
+declare void @may_unwind()
+
+declare void @use(i1)
+
+define i1 @assume_single_bb_conditions_after_assume(i8 %a, i8 %b, i1 %c) !dbg !5 {
+; CHECK-LABEL: define i1 @assume_single_bb_conditions_after_assume(
+; CHECK: [[CMP_1:%.*]] = icmp ule i8 [[ADD_1:%.*]], [[B:%.*]], !dbg [[DBG12:![0-9]+]]
+; CHECK-NEXT: [[C_1:%.*]] = icmp ule i8 [[ADD_1]], [[B]], !dbg [[DBG13:![0-9]+]]
+; CHECK-NEXT: #dbg_value(i1 [[C_1]], [[META9:![0-9]+]], !DIExpression(), [[META14:![0-9]+]])
+; CHECK-NEXT: call void @use(i1 [[C_1]]), !dbg [[DBG15:![0-9]+]]
+; CHECK-NEXT: #dbg_value(i1 [[C_1]], [[META9]], !DIExpression(), [[META14]])
+; CHECK-NEXT: call void @may_unwind(), !dbg [[DBG16:![0-9]+]]
+; CHECK-NEXT: #dbg_value(i1 [[C_1]], [[META9]], !DIExpression(), [[META14]])
+; CHECK-NEXT: call void @llvm.assume(i1 [[CMP_1]]), !dbg [[DBG17:![0-9]+]]
+; CHECK-NEXT: #dbg_value(i1 [[C_1]], [[META9]], !DIExpression(), [[META14]])
+; CHECK-NEXT: #dbg_value(i1 true, [[META9]], !DIExpression(), [[META14]])
+; CHECK-NEXT: [[RES_1:%.*]] = xor i1 true, true, !dbg [[DBG18:![0-9]+]]
+;
+ %add.1 = add nuw nsw i8 %a, 1, !dbg !11
+ %cmp.1 = icmp ule i8 %add.1, %b, !dbg !12
+ %c.1 = icmp ule i8 %add.1, %b, !dbg !13
+ #dbg_value(i1 %c.1, !9, !DIExpression(), !14)
+ call void @use(i1 %c.1), !dbg !15
+ #dbg_value(i1 %c.1, !9, !DIExpression(), !14)
+ call void @may_unwind(), !dbg !16
+ #dbg_value(i1 %c.1, !9, !DIExpression(), !14)
+ call void @llvm.assume(i1 %cmp.1), !dbg !17
+ #dbg_value(i1 %c.1, !9, !DIExpression(), !14)
+ %t.2 = icmp ule i8 %a, %b, !dbg !14
+ #dbg_value(i1 %c.1, !9, !DIExpression(), !14)
+ %res.1 = xor i1 %c.1, %t.2, !dbg !18
+ %add.2 = add nuw nsw i8 %a, 2, !dbg !19
+ %c.2 = icmp ule i8 %add.2, %b, !dbg !20
+ %res.2 = xor i1 %res.1, %c.2, !dbg !21
+ ret i1 %res.2, !dbg !22
+}
+
+attributes #0 = { nocallback nofree nosync nounwind willreturn memory(inaccessiblemem: write) }
+
+!llvm.dbg.cu = !{!0}
+!llvm.debugify = !{!2, !3}
+!llvm.module.flags = !{!4}
+
+!0 = distinct !DICompileUnit(language: DW_LANG_C, file: !1, producer: "debugify", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug)
+!1 = !DIFile(filename: "/app/example.ll", directory: "/")
+!2 = !{i32 12}
+!3 = !{i32 8}
+!4 = !{i32 2, !"Debug Info Version", i32 3}
+!5 = distinct !DISubprogram(name: "assume_single_bb_conditions_after_assume", linkageName: "assume_single_bb_conditions_after_assume", scope: null, file: !1, line: 1, type: !6, scopeLine: 1, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !8)
+!6 = !DISubroutineType(types: !7)
+!7 = !{}
+!8 = !{!9}
+!9 = !DILocalVariable(name: "4", scope: !5, file: !1, line: 7, type: !10)
+!10 = !DIBasicType(name: "ty8", size: 8, encoding: DW_ATE_unsigned)
+!11 = !DILocation(line: 1, column: 1, scope: !5)
+!12 = !DILocation(line: 2, column: 1, scope: !5)
+!13 = !DILocation(line: 3, column: 1, scope: !5)
+!14 = !DILocation(line: 7, column: 1, scope: !5)
+!15 = !DILocation(line: 4, column: 1, scope: !5)
+!16 = !DILocation(line: 5, column: 1, scope: !5)
+!17 = !DILocation(line: 6, column: 1, scope: !5)
+!18 = !DILocation(line: 8, column: 1, scope: !5)
+!19 = !DILocation(line: 9, column: 1, scope: !5)
+!20 = !DILocation(line: 10, column: 1, scope: !5)
+!21 = !DILocation(line: 11, column: 1, scope: !5)
+!22 = !DILocation(line: 12, column: 1, scope: !5)
+
+; CHECK: [[META9]] = !DILocalVariable(name: "4",
+; CHECK: [[DBG12]] = !DILocation(line: 2, column: 1,
+; CHECK: [[DBG13]] = !DILocation(line: 3, column: 1,
+; CHECK: [[META14]] = !DILocation(line: 7, column: 1,
+; CHECK: [[DBG18]] = !DILocation(line: 8, column: 1,
+;.
diff --git a/llvm/test/Transforms/ConstraintElimination/salvage-dbg-values-replaced-by-constant.ll b/llvm/test/Transforms/ConstraintElimination/salvage-dbg-values-replaced-by-constant.ll
index 75fae6f93992b..c3827f14f5506 100644
--- a/llvm/test/Transforms/ConstraintElimination/salvage-dbg-values-replaced-by-constant.ll
+++ b/llvm/test/Transforms/ConstraintElimination/salvage-dbg-values-replaced-by-constant.ll
@@ -1,24 +1,14 @@
-; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
; RUN: opt < %s -passes=constraint-elimination -S | FileCheck %s
; Check that checkAndReplaceCondition() salvages the debug value information after replacing
-; the conditions (%t.1 in this test) with the speculated constants (GitHub Issue #135736).
+; the conditions (`%t.1` in this test) with the speculated constants (GitHub Issue #135736).
+; In particular, the debug value record uses are replaced if their `DFSNumIn`s and `DFSNumOut`s
+; on `DominatorTree` satisfy the contraint.
define i1 @test_and_ule(i4 %x, i4 %y, i4 %z) !dbg !5 {
; CHECK-LABEL: define i1 @test_and_ule(
-; CHECK-SAME: i4 [[X:%.*]], i4 [[Y:%.*]], i4 [[Z:%.*]]) !dbg [[DBG5:![0-9]+]] {
-; CHECK-NEXT: [[ENTRY:.*:]]
-; CHECK-NEXT: [[C_1:%.*]] = icmp ule i4 [[X]], [[Y]], !dbg [[DBG11:![0-9]+]]
-; CHECK-NEXT: [[C_2:%.*]] = icmp ule i4 [[Y]], [[Z]], !dbg [[DBG12:![0-9]+]]
-; CHECK-NEXT: [[AND:%.*]] = and i1 [[C_1]], [[C_2]], !dbg [[DBG13:![0-9]+]]
-; CHECK-NEXT: br i1 [[AND]], label %[[THEN:.*]], label %[[EXIT:.*]], !dbg [[DBG14:![0-9]+]]
-; CHECK: [[THEN]]:
-; CHECK-NEXT: #dbg_value(i1 true, [[META9:![0-9]+]], !DIExpression(), [[META15:![0-9]+]])
-; CHECK-NEXT: [[R_1:%.*]] = xor i1 true, true, !dbg [[DBG16:![0-9]+]]
-; CHECK-NEXT: br label %[[EXIT]]
-; CHECK: [[EXIT]]:
-; CHECK-NEXT: #dbg_value(i1 poison, [[META17:![0-9]+]], !DIExpression(), [[META15]])
-; CHECK-NEXT: ret i1 true, !dbg [[DBG18:![0-9]+]]
+; CHECK-SAME: i4 [[X:%.*]], i4 [[Y:%.*]], i4 [[Z:%.*]])
+; CHECK: [[T_1:%.*]] = icmp ule i4 [[X]], [[Z]], !dbg [[DBG13:![0-9]+]]
;
entry:
%c.1 = icmp ule i4 %x, %y, !dbg !11
@@ -27,14 +17,20 @@ entry:
%and = and i1 %c.1, %c.2, !dbg !14
br i1 %and, label %then, label %exit, !dbg !15
+; CHECK: [[THEN:.*]]:
+; CHECK-NEXT: #dbg_value(i1 true, [[META9:![0-9]+]], !DIExpression(), [[DBG13]])
+; CHECK-NEXT: [[R_1:%.*]] = xor i1 true, true, !dbg [[DBG16:![0-9]+]]
then: ; preds = %entry
- #dbg_value(i1 %t.1, !9, !DIExpression(), !13)
+ #dbg_value(i1 %t.1, !9, !DIExpression(), !13)
%r.1 = xor i1 %t.1, %t.1, !dbg !16
br label %exit
+; CHECK: [[EXIT:.*]]:
+; CHECK-NEXT: #dbg_value(i1 [[T_1]], [[META17:![0-9]+]], !DIExpression(), [[DBG13]])
+; CHECK-NEXT: ret i1 [[T_1]], !dbg [[DBG18:![0-9]+]]
exit: ; preds = %bb1, %entry
- #dbg_value(i1 %t.1, !17, !DIExpression(), !13)
- ret i1 true, !dbg !18
+ #dbg_value(i1 %t.1, !17, !DIExpression(), !13)
+ ret i1 %t.1, !dbg !18
}
!llvm.dbg.cu = !{!0}
@@ -60,21 +56,10 @@ exit: ; preds = %bb1, %entry
!16 = !DILocation(line: 7, column: 1, scope: !5)
!17 = !DILocalVariable(name: "6", scope: !5, file: !1, line: 7, type: !10)
!18 = !DILocation(line: 20, column: 1, scope: !5)
-;.
-; CHECK: [[META0:![0-9]+]] = distinct !DICompileUnit(language: DW_LANG_C, file: [[META1:![0-9]+]], producer: "debugify", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug)
-; CHECK: [[META1]] = !DIFile(filename: "temp.ll", directory: {{.*}})
-; CHECK: [[DBG5]] = distinct !DISubprogram(name: "test_and_ule", linkageName: "test_and_ule", scope: null, file: [[META1]], line: 1, type: [[META6:![0-9]+]], scopeLine: 1, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: [[META0]], retainedNodes: [[META8:![0-9]+]])
-; CHECK: [[META6]] = !DISubroutineType(types: [[META7:![0-9]+]])
-; CHECK: [[META7]] = !{}
-; CHECK: [[META8]] = !{[[META9]]}
-; CHECK: [[META9]] = !DILocalVariable(name: "4", scope: [[DBG5]], file: [[META1]], line: 5, type: [[META10:![0-9]+]])
-; CHECK: [[META10]] = !DIBasicType(name: "ty8", size: 8, encoding: DW_ATE_unsigned)
-; CHECK: [[DBG11]] = !DILocation(line: 1, column: 1, scope: [[DBG5]])
-; CHECK: [[DBG12]] = !DILocation(line: 2, column: 1, scope: [[DBG5]])
-; CHECK: [[DBG13]] = !DILocation(line: 3, column: 1, scope: [[DBG5]])
-; CHECK: [[DBG14]] = !DILocation(line: 4, column: 1, scope: [[DBG5]])
-; CHECK: [[META15]] = !DILocation(line: 5, column: 1, scope: [[DBG5]])
-; CHECK: [[DBG16]] = !DILocation(line: 7, column: 1, scope: [[DBG5]])
-; CHECK: [[META17]] = !DILocalVariable(name: "6", scope: [[DBG5]], file: [[META1]], line: 7, type: [[META10]])
-; CHECK: [[DBG18]] = !DILocation(line: 20, column: 1, scope: [[DBG5]])
+
+; CHECK: [[META9]] = !DILocalVariable(name: "4",
+; CHECK: [[DBG13]] = !DILocation(line: 5, column: 1,
+; CHECK: [[DBG16]] = !DILocation(line: 7, column: 1,
+; CHECK: [[META17]] = !DILocalVariable(name: "6",
+; CHECK: [[DBG18]] = !DILocation(line: 20, column: 1,
;.
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