[llvm] [RemoveDIs] Update update_test_checks script to recognize dbg_records (PR #87388)
via llvm-commits
llvm-commits at lists.llvm.org
Wed Apr 17 03:02:33 PDT 2024
llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-testing-tools
Author: Stephen Tozer (SLTozer)
<details>
<summary>Changes</summary>
As we've added new IR elements, as described [here](https://discourse.llvm.org/t/rfc-debuginfo-proposed-changes-to-the-textual-ir-representation-for-debug-values/73491) and implemented [here](https://github.com/llvm/llvm-project/pull/79281), we need the update_test_checks script to understand them. For the records themselves this is already done automatically, but their metadata arguments are not recognized as such due to lacking the `metadata` prefix, which means they won't be checked by the script. The fix I've added was to add a check for all `![0-9]+` patterns as long as they are not at the start of a line (which avoids matching global values).
I'm not well-acquainted with the update_test_checks scripts, so I'm not sure if this pattern is too broad for the update script's purposes; it appears to work without clashing with any existing patterns though.
---
Patch is 94.32 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/87388.diff
8 Files Affected:
- (added) llvm/test/tools/UpdateTestChecks/update_test_checks/Inputs/various_ir_values_dbgrecords.ll (+168)
- (added) llvm/test/tools/UpdateTestChecks/update_test_checks/Inputs/various_ir_values_dbgrecords.ll.expected (+238)
- (added) llvm/test/tools/UpdateTestChecks/update_test_checks/Inputs/various_ir_values_dbgrecords.ll.funcsig.expected (+240)
- (added) llvm/test/tools/UpdateTestChecks/update_test_checks/Inputs/various_ir_values_dbgrecords.ll.funcsig.globals.expected (+309)
- (added) llvm/test/tools/UpdateTestChecks/update_test_checks/Inputs/various_ir_values_dbgrecords.ll.funcsig.noglobals.expected (+238)
- (added) llvm/test/tools/UpdateTestChecks/update_test_checks/Inputs/various_ir_values_dbgrecords.ll.funcsig.transitiveglobals.expected (+299)
- (added) llvm/test/tools/UpdateTestChecks/update_test_checks/various_ir_values_dbgrecords.test (+24)
- (modified) llvm/utils/UpdateTestChecks/common.py (+1-1)
``````````diff
diff --git a/llvm/test/tools/UpdateTestChecks/update_test_checks/Inputs/various_ir_values_dbgrecords.ll b/llvm/test/tools/UpdateTestChecks/update_test_checks/Inputs/various_ir_values_dbgrecords.ll
new file mode 100644
index 00000000000000..9a9cc0a06936f9
--- /dev/null
+++ b/llvm/test/tools/UpdateTestChecks/update_test_checks/Inputs/various_ir_values_dbgrecords.ll
@@ -0,0 +1,168 @@
+; Just run it through opt, no passes needed.
+; RUN: opt < %s -S --write-experimental-debuginfo=true | FileCheck %s
+
+; ModuleID = 'various_ir_values.c'
+source_filename = "various_ir_values.c"
+target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-linux-gnu"
+
+; Function Attrs: nounwind uwtable
+define dso_local void @foo(ptr %A) #0 !dbg !7 {
+entry:
+ %A.addr = alloca ptr, align 8, !DIAssignID !16
+ %i = alloca i32, align 4
+ #dbg_assign(i1 undef, !13, !DIExpression(), !16, ptr %A.addr, !DIExpression(), !17)
+ store ptr %A, ptr %A.addr, align 8, !tbaa !18
+ #dbg_declare(ptr %A.addr, !13, !DIExpression(), !17)
+ call void @llvm.lifetime.start.p0(i64 4, ptr %i) #2, !dbg !22
+ #dbg_declare(ptr %i, !14, !DIExpression(), !23)
+ store i32 0, ptr %i, align 4, !dbg !23, !tbaa !24
+ br label %for.cond, !dbg !22
+
+for.cond: ; preds = %for.inc, %entry
+ %0 = load i32, ptr %i, align 4, !dbg !26, !tbaa !24
+ %1 = load ptr, ptr %A.addr, align 8, !dbg !28, !tbaa !18
+ %2 = load i32, ptr %1, align 4, !dbg !29, !tbaa !24
+ %cmp = icmp slt i32 %0, %2, !dbg !30
+ br i1 %cmp, label %for.body, label %for.cond.cleanup, !dbg !31, !prof !32
+
+for.cond.cleanup: ; preds = %for.cond
+ call void @llvm.lifetime.end.p0(i64 4, ptr %i) #2, !dbg !33
+ br label %for.end
+
+for.body: ; preds = %for.cond
+ %3 = load ptr, ptr %A.addr, align 8, !dbg !34, !tbaa !18
+ %4 = load i32, ptr %i, align 4, !dbg !35, !tbaa !24
+ %idxprom = sext i32 %4 to i64, !dbg !34
+ %arrayidx = getelementptr inbounds i32, ptr %3, i64 %idxprom, !dbg !34
+ store i32 0, ptr %arrayidx, align 4, !dbg !36, !tbaa !24
+ br label %for.inc, !dbg !34
+
+for.inc: ; preds = %for.body
+ %5 = load i32, ptr %i, align 4, !dbg !37, !tbaa !24
+ %inc = add nsw i32 %5, 1, !dbg !37
+ store i32 %inc, ptr %i, align 4, !dbg !37, !tbaa !24
+ br label %for.cond, !dbg !33, !llvm.loop !38
+
+for.end: ; preds = %for.cond.cleanup
+ ret void, !dbg !40
+}
+
+; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
+declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1
+
+; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
+declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1
+
+; Function Attrs: nounwind uwtable
+define dso_local void @bar(ptr %A) #0 !dbg !41 {
+entry:
+ %A.addr = alloca ptr, align 8
+ %i = alloca i32, align 4
+ store ptr %A, ptr %A.addr, align 8, !tbaa !18
+ #dbg_declare(ptr %A.addr, !43, !DIExpression(), !46)
+ call void @llvm.lifetime.start.p0(i64 4, ptr %i) #2, !dbg !47
+ #dbg_declare(ptr %i, !44, !DIExpression(), !48)
+ store i32 0, ptr %i, align 4, !dbg !48, !tbaa !24
+ br label %for.cond, !dbg !47
+
+for.cond: ; preds = %for.inc, %entry
+ %0 = load i32, ptr %i, align 4, !dbg !49, !tbaa !24
+ %1 = load ptr, ptr %A.addr, align 8, !dbg !51, !tbaa !18
+ %2 = load i32, ptr %1, align 4, !dbg !52, !tbaa !24
+ %cmp = icmp slt i32 %0, %2, !dbg !53
+ br i1 %cmp, label %for.body, label %for.cond.cleanup, !dbg !54
+
+for.cond.cleanup: ; preds = %for.cond
+ call void @llvm.lifetime.end.p0(i64 4, ptr %i) #2, !dbg !55
+ br label %for.end
+
+for.body: ; preds = %for.cond
+ %3 = load ptr, ptr %A.addr, align 8, !dbg !56, !tbaa !18
+ %4 = load i32, ptr %i, align 4, !dbg !57, !tbaa !24
+ %idxprom = sext i32 %4 to i64, !dbg !56
+ %arrayidx = getelementptr inbounds i32, ptr %3, i64 %idxprom, !dbg !56
+ store i32 0, ptr %arrayidx, align 4, !dbg !58, !tbaa !24
+ br label %for.inc, !dbg !56
+
+for.inc: ; preds = %for.body
+ %5 = load i32, ptr %i, align 4, !dbg !59, !tbaa !24
+ %inc = add nsw i32 %5, 1, !dbg !59
+ store i32 %inc, ptr %i, align 4, !dbg !59, !tbaa !24
+ br label %for.cond, !dbg !55, !llvm.loop !60
+
+for.end: ; preds = %for.cond.cleanup
+ ret void, !dbg !62
+}
+
+attributes #0 = { nounwind uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "denormal-fp-math"="ieee,ieee" "denormal-fp-math-f32"="ieee,ieee" "disable-tail-calls"="false" "frame-pointer"="none" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
+attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
+attributes #2 = { nounwind }
+
+!llvm.dbg.cu = !{!0}
+!llvm.module.flags = !{!3, !4, !5}
+!llvm.ident = !{!6}
+
+!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 11.0.0 (git at github.com:llvm/llvm-project.git 1d5da8cd30fce1c0a2c2fa6ba656dbfaa36192c8)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None)
+!1 = !DIFile(filename: "various_ir_values.c", directory: "/data/build/llvm-project")
+!2 = !{}
+!3 = !{i32 7, !"Dwarf Version", i32 4}
+!4 = !{i32 2, !"Debug Info Version", i32 3}
+!5 = !{i32 1, !"wchar_size", i32 4}
+!6 = !{!"clang version 11.0.0 (git at github.com:llvm/llvm-project.git 1d5da8cd30fce1c0a2c2fa6ba656dbfaa36192c8)"}
+!7 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 1, type: !8, scopeLine: 1, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !12)
+!8 = !DISubroutineType(types: !9)
+!9 = !{null, !10}
+!10 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !11, size: 64)
+!11 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
+!12 = !{!13, !14}
+!13 = !DILocalVariable(name: "A", arg: 1, scope: !7, file: !1, line: 1, type: !10)
+!14 = !DILocalVariable(name: "i", scope: !15, file: !1, line: 3, type: !11)
+!15 = distinct !DILexicalBlock(scope: !7, file: !1, line: 3, column: 3)
+!16 = distinct !DIAssignID()
+!17 = !DILocation(line: 1, column: 15, scope: !7)
+!18 = !{!19, !19, i64 0}
+!19 = !{!"any pointer", !20, i64 0}
+!20 = !{!"omnipotent char", !21, i64 0}
+!21 = !{!"Simple C/C++ TBAA"}
+!22 = !DILocation(line: 3, column: 8, scope: !15)
+!23 = !DILocation(line: 3, column: 12, scope: !15)
+!24 = !{!25, !25, i64 0}
+!25 = !{!"int", !20, i64 0}
+!26 = !DILocation(line: 3, column: 19, scope: !27)
+!27 = distinct !DILexicalBlock(scope: !15, file: !1, line: 3, column: 3)
+!28 = !DILocation(line: 3, column: 24, scope: !27)
+!29 = !DILocation(line: 3, column: 23, scope: !27)
+!30 = !DILocation(line: 3, column: 21, scope: !27)
+!31 = !DILocation(line: 3, column: 3, scope: !15)
+!32 = !{!"branch_weights", i32 1, i32 1048575}
+!33 = !DILocation(line: 3, column: 3, scope: !27)
+!34 = !DILocation(line: 4, column: 5, scope: !27)
+!35 = !DILocation(line: 4, column: 7, scope: !27)
+!36 = !DILocation(line: 4, column: 10, scope: !27)
+!37 = !DILocation(line: 3, column: 27, scope: !27)
+!38 = distinct !{!38, !31, !39}
+!39 = !DILocation(line: 4, column: 12, scope: !15)
+!40 = !DILocation(line: 5, column: 1, scope: !7)
+!41 = distinct !DISubprogram(name: "bar", scope: !1, file: !1, line: 7, type: !8, scopeLine: 7, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !42)
+!42 = !{!43, !44}
+!43 = !DILocalVariable(name: "A", arg: 1, scope: !41, file: !1, line: 7, type: !10)
+!44 = !DILocalVariable(name: "i", scope: !45, file: !1, line: 9, type: !11)
+!45 = distinct !DILexicalBlock(scope: !41, file: !1, line: 9, column: 3)
+!46 = !DILocation(line: 7, column: 15, scope: !41)
+!47 = !DILocation(line: 9, column: 8, scope: !45)
+!48 = !DILocation(line: 9, column: 12, scope: !45)
+!49 = !DILocation(line: 9, column: 19, scope: !50)
+!50 = distinct !DILexicalBlock(scope: !45, file: !1, line: 9, column: 3)
+!51 = !DILocation(line: 9, column: 24, scope: !50)
+!52 = !DILocation(line: 9, column: 23, scope: !50)
+!53 = !DILocation(line: 9, column: 21, scope: !50)
+!54 = !DILocation(line: 9, column: 3, scope: !45)
+!55 = !DILocation(line: 9, column: 3, scope: !50)
+!56 = !DILocation(line: 10, column: 5, scope: !50)
+!57 = !DILocation(line: 10, column: 7, scope: !50)
+!58 = !DILocation(line: 10, column: 10, scope: !50)
+!59 = !DILocation(line: 9, column: 27, scope: !50)
+!60 = distinct !{!60, !54, !61}
+!61 = !DILocation(line: 10, column: 12, scope: !45)
+!62 = !DILocation(line: 11, column: 1, scope: !41)
diff --git a/llvm/test/tools/UpdateTestChecks/update_test_checks/Inputs/various_ir_values_dbgrecords.ll.expected b/llvm/test/tools/UpdateTestChecks/update_test_checks/Inputs/various_ir_values_dbgrecords.ll.expected
new file mode 100644
index 00000000000000..1f9c37ccfbd889
--- /dev/null
+++ b/llvm/test/tools/UpdateTestChecks/update_test_checks/Inputs/various_ir_values_dbgrecords.ll.expected
@@ -0,0 +1,238 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; Just run it through opt, no passes needed.
+; RUN: opt < %s -S --write-experimental-debuginfo=true | FileCheck %s
+
+; ModuleID = 'various_ir_values.c'
+source_filename = "various_ir_values.c"
+target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-linux-gnu"
+
+; Function Attrs: nounwind uwtable
+define dso_local void @foo(ptr %A) #0 !dbg !7 {
+; CHECK-LABEL: @foo(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[A_ADDR:%.*]] = alloca ptr, align 8, !DIAssignID [[DIASSIGNID16:![0-9]+]]
+; CHECK-NEXT: [[I:%.*]] = alloca i32, align 4
+; CHECK-NEXT: #dbg_assign(i1 undef, [[META13:![0-9]+]], !DIExpression(), [[DIASSIGNID16]], ptr [[A_ADDR]], !DIExpression(), [[META17:![0-9]+]])
+; CHECK-NEXT: store ptr [[A:%.*]], ptr [[A_ADDR]], align 8, !tbaa [[TBAA18:![0-9]+]]
+; CHECK-NEXT: #dbg_declare(ptr [[A_ADDR]], [[META13]], !DIExpression(), [[META17]])
+; CHECK-NEXT: call void @llvm.lifetime.start.p0(i64 4, ptr [[I]]) #[[ATTR2:[0-9]+]], !dbg [[DBG22:![0-9]+]]
+; CHECK-NEXT: #dbg_declare(ptr [[I]], [[META14:![0-9]+]], !DIExpression(), [[META23:![0-9]+]])
+; CHECK-NEXT: store i32 0, ptr [[I]], align 4, !dbg [[META23]], !tbaa [[TBAA24:![0-9]+]]
+; CHECK-NEXT: br label [[FOR_COND:%.*]], !dbg [[DBG22]]
+; CHECK: for.cond:
+; CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr [[I]], align 4, !dbg [[DBG26:![0-9]+]], !tbaa [[TBAA24]]
+; CHECK-NEXT: [[TMP1:%.*]] = load ptr, ptr [[A_ADDR]], align 8, !dbg [[DBG28:![0-9]+]], !tbaa [[TBAA18]]
+; CHECK-NEXT: [[TMP2:%.*]] = load i32, ptr [[TMP1]], align 4, !dbg [[DBG29:![0-9]+]], !tbaa [[TBAA24]]
+; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[TMP0]], [[TMP2]], !dbg [[DBG30:![0-9]+]]
+; CHECK-NEXT: br i1 [[CMP]], label [[FOR_BODY:%.*]], label [[FOR_COND_CLEANUP:%.*]], !dbg [[DBG31:![0-9]+]], !prof [[PROF32:![0-9]+]]
+; CHECK: for.cond.cleanup:
+; CHECK-NEXT: call void @llvm.lifetime.end.p0(i64 4, ptr [[I]]) #[[ATTR2]], !dbg [[DBG33:![0-9]+]]
+; CHECK-NEXT: br label [[FOR_END:%.*]]
+; CHECK: for.body:
+; CHECK-NEXT: [[TMP3:%.*]] = load ptr, ptr [[A_ADDR]], align 8, !dbg [[DBG34:![0-9]+]], !tbaa [[TBAA18]]
+; CHECK-NEXT: [[TMP4:%.*]] = load i32, ptr [[I]], align 4, !dbg [[DBG35:![0-9]+]], !tbaa [[TBAA24]]
+; CHECK-NEXT: [[IDXPROM:%.*]] = sext i32 [[TMP4]] to i64, !dbg [[DBG34]]
+; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i32, ptr [[TMP3]], i64 [[IDXPROM]], !dbg [[DBG34]]
+; CHECK-NEXT: store i32 0, ptr [[ARRAYIDX]], align 4, !dbg [[DBG36:![0-9]+]], !tbaa [[TBAA24]]
+; CHECK-NEXT: br label [[FOR_INC:%.*]], !dbg [[DBG34]]
+; CHECK: for.inc:
+; CHECK-NEXT: [[TMP5:%.*]] = load i32, ptr [[I]], align 4, !dbg [[DBG37:![0-9]+]], !tbaa [[TBAA24]]
+; CHECK-NEXT: [[INC:%.*]] = add nsw i32 [[TMP5]], 1, !dbg [[DBG37]]
+; CHECK-NEXT: store i32 [[INC]], ptr [[I]], align 4, !dbg [[DBG37]], !tbaa [[TBAA24]]
+; CHECK-NEXT: br label [[FOR_COND]], !dbg [[DBG33]], !llvm.loop [[LOOP38:![0-9]+]]
+; CHECK: for.end:
+; CHECK-NEXT: ret void, !dbg [[DBG40:![0-9]+]]
+;
+entry:
+ %A.addr = alloca ptr, align 8, !DIAssignID !16
+ %i = alloca i32, align 4
+ #dbg_assign(i1 undef, !13, !DIExpression(), !16, ptr %A.addr, !DIExpression(), !17)
+ store ptr %A, ptr %A.addr, align 8, !tbaa !18
+ #dbg_declare(ptr %A.addr, !13, !DIExpression(), !17)
+ call void @llvm.lifetime.start.p0(i64 4, ptr %i) #2, !dbg !22
+ #dbg_declare(ptr %i, !14, !DIExpression(), !23)
+ store i32 0, ptr %i, align 4, !dbg !23, !tbaa !24
+ br label %for.cond, !dbg !22
+
+for.cond: ; preds = %for.inc, %entry
+ %0 = load i32, ptr %i, align 4, !dbg !26, !tbaa !24
+ %1 = load ptr, ptr %A.addr, align 8, !dbg !28, !tbaa !18
+ %2 = load i32, ptr %1, align 4, !dbg !29, !tbaa !24
+ %cmp = icmp slt i32 %0, %2, !dbg !30
+ br i1 %cmp, label %for.body, label %for.cond.cleanup, !dbg !31, !prof !32
+
+for.cond.cleanup: ; preds = %for.cond
+ call void @llvm.lifetime.end.p0(i64 4, ptr %i) #2, !dbg !33
+ br label %for.end
+
+for.body: ; preds = %for.cond
+ %3 = load ptr, ptr %A.addr, align 8, !dbg !34, !tbaa !18
+ %4 = load i32, ptr %i, align 4, !dbg !35, !tbaa !24
+ %idxprom = sext i32 %4 to i64, !dbg !34
+ %arrayidx = getelementptr inbounds i32, ptr %3, i64 %idxprom, !dbg !34
+ store i32 0, ptr %arrayidx, align 4, !dbg !36, !tbaa !24
+ br label %for.inc, !dbg !34
+
+for.inc: ; preds = %for.body
+ %5 = load i32, ptr %i, align 4, !dbg !37, !tbaa !24
+ %inc = add nsw i32 %5, 1, !dbg !37
+ store i32 %inc, ptr %i, align 4, !dbg !37, !tbaa !24
+ br label %for.cond, !dbg !33, !llvm.loop !38
+
+for.end: ; preds = %for.cond.cleanup
+ ret void, !dbg !40
+}
+
+; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
+declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1
+
+; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
+declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1
+
+; Function Attrs: nounwind uwtable
+define dso_local void @bar(ptr %A) #0 !dbg !41 {
+; CHECK-LABEL: @bar(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[A_ADDR:%.*]] = alloca ptr, align 8
+; CHECK-NEXT: [[I:%.*]] = alloca i32, align 4
+; CHECK-NEXT: store ptr [[A:%.*]], ptr [[A_ADDR]], align 8, !tbaa [[TBAA18]]
+; CHECK-NEXT: #dbg_declare(ptr [[A_ADDR]], [[META43:![0-9]+]], !DIExpression(), [[META46:![0-9]+]])
+; CHECK-NEXT: call void @llvm.lifetime.start.p0(i64 4, ptr [[I]]) #[[ATTR2]], !dbg [[DBG47:![0-9]+]]
+; CHECK-NEXT: #dbg_declare(ptr [[I]], [[META44:![0-9]+]], !DIExpression(), [[META48:![0-9]+]])
+; CHECK-NEXT: store i32 0, ptr [[I]], align 4, !dbg [[META48]], !tbaa [[TBAA24]]
+; CHECK-NEXT: br label [[FOR_COND:%.*]], !dbg [[DBG47]]
+; CHECK: for.cond:
+; CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr [[I]], align 4, !dbg [[DBG49:![0-9]+]], !tbaa [[TBAA24]]
+; CHECK-NEXT: [[TMP1:%.*]] = load ptr, ptr [[A_ADDR]], align 8, !dbg [[DBG51:![0-9]+]], !tbaa [[TBAA18]]
+; CHECK-NEXT: [[TMP2:%.*]] = load i32, ptr [[TMP1]], align 4, !dbg [[DBG52:![0-9]+]], !tbaa [[TBAA24]]
+; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[TMP0]], [[TMP2]], !dbg [[DBG53:![0-9]+]]
+; CHECK-NEXT: br i1 [[CMP]], label [[FOR_BODY:%.*]], label [[FOR_COND_CLEANUP:%.*]], !dbg [[DBG54:![0-9]+]]
+; CHECK: for.cond.cleanup:
+; CHECK-NEXT: call void @llvm.lifetime.end.p0(i64 4, ptr [[I]]) #[[ATTR2]], !dbg [[DBG55:![0-9]+]]
+; CHECK-NEXT: br label [[FOR_END:%.*]]
+; CHECK: for.body:
+; CHECK-NEXT: [[TMP3:%.*]] = load ptr, ptr [[A_ADDR]], align 8, !dbg [[DBG56:![0-9]+]], !tbaa [[TBAA18]]
+; CHECK-NEXT: [[TMP4:%.*]] = load i32, ptr [[I]], align 4, !dbg [[DBG57:![0-9]+]], !tbaa [[TBAA24]]
+; CHECK-NEXT: [[IDXPROM:%.*]] = sext i32 [[TMP4]] to i64, !dbg [[DBG56]]
+; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i32, ptr [[TMP3]], i64 [[IDXPROM]], !dbg [[DBG56]]
+; CHECK-NEXT: store i32 0, ptr [[ARRAYIDX]], align 4, !dbg [[DBG58:![0-9]+]], !tbaa [[TBAA24]]
+; CHECK-NEXT: br label [[FOR_INC:%.*]], !dbg [[DBG56]]
+; CHECK: for.inc:
+; CHECK-NEXT: [[TMP5:%.*]] = load i32, ptr [[I]], align 4, !dbg [[DBG59:![0-9]+]], !tbaa [[TBAA24]]
+; CHECK-NEXT: [[INC:%.*]] = add nsw i32 [[TMP5]], 1, !dbg [[DBG59]]
+; CHECK-NEXT: store i32 [[INC]], ptr [[I]], align 4, !dbg [[DBG59]], !tbaa [[TBAA24]]
+; CHECK-NEXT: br label [[FOR_COND]], !dbg [[DBG55]], !llvm.loop [[LOOP60:![0-9]+]]
+; CHECK: for.end:
+; CHECK-NEXT: ret void, !dbg [[DBG62:![0-9]+]]
+;
+entry:
+ %A.addr = alloca ptr, align 8
+ %i = alloca i32, align 4
+ store ptr %A, ptr %A.addr, align 8, !tbaa !18
+ #dbg_declare(ptr %A.addr, !43, !DIExpression(), !46)
+ call void @llvm.lifetime.start.p0(i64 4, ptr %i) #2, !dbg !47
+ #dbg_declare(ptr %i, !44, !DIExpression(), !48)
+ store i32 0, ptr %i, align 4, !dbg !48, !tbaa !24
+ br label %for.cond, !dbg !47
+
+for.cond: ; preds = %for.inc, %entry
+ %0 = load i32, ptr %i, align 4, !dbg !49, !tbaa !24
+ %1 = load ptr, ptr %A.addr, align 8, !dbg !51, !tbaa !18
+ %2 = load i32, ptr %1, align 4, !dbg !52, !tbaa !24
+ %cmp = icmp slt i32 %0, %2, !dbg !53
+ br i1 %cmp, label %for.body, label %for.cond.cleanup, !dbg !54
+
+for.cond.cleanup: ; preds = %for.cond
+ call void @llvm.lifetime.end.p0(i64 4, ptr %i) #2, !dbg !55
+ br label %for.end
+
+for.body: ; preds = %for.cond
+ %3 = load ptr, ptr %A.addr, align 8, !dbg !56, !tbaa !18
+ %4 = load i32, ptr %i, align 4, !dbg !57, !tbaa !24
+ %idxprom = sext i32 %4 to i64, !dbg !56
+ %arrayidx = getelementptr inbounds i32, ptr %3, i64 %idxprom, !dbg !56
+ store i32 0, ptr %arrayidx, align 4, !dbg !58, !tbaa !24
+ br label %for.inc, !dbg !56
+
+for.inc: ; preds = %for.body
+ %5 = load i32, ptr %i, align 4, !dbg !59, !tbaa !24
+ %inc = add nsw i32 %5, 1, !dbg !59
+ store i32 %inc, ptr %i, align 4, !dbg !59, !tbaa !24
+ br label %for.cond, !dbg !55, !llvm.loop !60
+
+for.end: ; preds = %for.cond.cleanup
+ ret void, !dbg !62
+}
+
+attributes #0 = { nounwind uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "denormal-fp-math"="ieee,ieee" "denormal-fp-math-f32"="ieee,ieee" "disable-tail-calls"="false" "frame-pointer"="none" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
+attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
+attributes #2 = { nounwind }
+
+!llvm.dbg.cu = !{!0}
+!llvm.module.flags = !{!3, !4, !5}
+!llvm.ident = !{!6}
+
+!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 11.0.0 (git at github.com:llvm/llvm-project.git 1d5da8cd30fce1c0a2c2fa6ba656dbfaa36192c8)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None)
+!1 = !DIFile(filename: "various_ir_values.c", directory: "/data/build/llvm-project")
+!2 = !{}
+!3 = !{i32 7, !"Dwarf Version", i32 4}
+!4 = !{i32 2, !"Debug Info Version", i32 3}
+!5 = !{i32 1, !"wchar_size", i32 4}
+!6 = !{!"clang version 11.0.0 (git at github.com:llvm/llvm-project.git 1d5da8cd...
[truncated]
``````````
</details>
https://github.com/llvm/llvm-project/pull/87388
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