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clang-p2996/llvm/test/Transforms/IROutliner/gvn-phi-debug.ll
Jeremy Morse 1833de3ee3 [Extractor][DebugInfo] Don't pick DebugLocs from dbg intrinsics (#80863) 
When picking the source location for a branch instruction in the
CodeExtractor, we can end up picking the source location of a debugging
intrinsic. This never makes sense because any variable assignment
information (or labels) might originate from completely different
lexical scopes that have been inlined, and also makes the line tables
change between -g and -gmlt. Fix this by skipping debug intrinsics when
looking for branch source locations.

Detected because of test differences with RemoveDIs, the non-intrinsinc
form of debug-info -- fixing in intrinsic form to avoid there being
spurious test differences when we turn it on.
2024-02-06 17:40:32 +00:00

177 lines
8.4 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
; RUN: opt -S -passes=verify,iroutliner -ir-outlining-no-cost < %s | FileCheck %s
; RUN: opt -S -passes=verify,iroutliner -ir-outlining-no-cost < %s --try-experimental-debuginfo-iterators | FileCheck %s
target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64"
target triple = "thumbv7-none-linux-android19"
define i32 @r() {
; CHECK-LABEL: define i32 @r() {
; CHECK-NEXT: entry:
; CHECK-NEXT: [[DOTLOC:%.*]] = alloca ptr, align 4
; CHECK-NEXT: call void @llvm.lifetime.start.p0(i64 -1, ptr [[DOTLOC]])
; CHECK-NEXT: [[TMP0:%.*]] = call i1 @outlined_ir_func_0(ptr [[DOTLOC]], i32 0)
; CHECK-NEXT: [[DOTRELOAD:%.*]] = load ptr, ptr [[DOTLOC]], align 4
; CHECK-NEXT: call void @llvm.lifetime.end.p0(i64 -1, ptr [[DOTLOC]])
; CHECK-NEXT: br i1 [[TMP0]], label [[IF_END8:%.*]], label [[ENTRY_AFTER_OUTLINE:%.*]]
; CHECK: entry_after_outline:
; CHECK-NEXT: [[CALL7:%.*]] = call i32 [[DOTRELOAD]]()
; CHECK-NEXT: br label [[IF_END8]]
; CHECK: if.end8:
; CHECK-NEXT: ret i32 0
;
entry:
%.fca.2.insert = insertvalue [5 x i32] zeroinitializer, i32 0, 2
%.fca.3.load = load i32, ptr null, align 4
%.fca.3.insert = insertvalue [5 x i32] zeroinitializer, i32 0, 3
%.fca.4.load = load i32, ptr null, align 4
%.fca.4.insert = insertvalue [5 x i32] zeroinitializer, i32 0, 4
%call = call i32 @p()
%tobool.not = icmp eq i32 0, 0
br i1 false, label %if.end8, label %if.then
if.then: ; preds = %entry
%0 = load i32, ptr null, align 4
%tobool1.not = icmp eq i32 0, 0
%1 = load i32, ptr null, align 4
%2 = load i32, ptr null, align 4
%cond = select i1 false, i32 0, i32 0
%tobool5.not = icmp eq i32 0, 0
br i1 false, label %if.end8, label %if.then6
if.then6: ; preds = %if.then
%3 = load ptr, ptr null, align 4
%call7 = call i32 %3()
br label %if.end8
if.end8: ; preds = %if.then6, %if.then, %entry
ret i32 0
}
declare i32 @p()
define i32 @u() {
; CHECK-LABEL: define i32 @u() {
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = call i1 @outlined_ir_func_0(ptr null, i32 -1)
; CHECK-NEXT: br i1 [[TMP0]], label [[IF_END8:%.*]], label [[ENTRY_AFTER_OUTLINE:%.*]]
; CHECK: entry_after_outline:
; CHECK-NEXT: br label [[IF_END8]]
; CHECK: if.end8:
; CHECK-NEXT: ret i32 0
;
entry:
%.fca.2.insert = insertvalue [5 x i32] zeroinitializer, i32 0, 2
%.fca.3.load = load i32, ptr null, align 4
%.fca.3.insert = insertvalue [5 x i32] zeroinitializer, i32 0, 3
%.fca.4.load = load i32, ptr null, align 4
%.fca.4.insert = insertvalue [5 x i32] zeroinitializer, i32 0, 4
%call = call i32 @p()
%tobool.not = icmp eq i32 0, 0
br i1 false, label %if.end8, label %if.then
if.then: ; preds = %entry
%0 = load i32, ptr null, align 4
%tobool1.not = icmp eq i32 0, 0
%1 = load i32, ptr null, align 4
%2 = load i32, ptr null, align 4
%cond = select i1 false, i32 0, i32 0
%tobool5.not = icmp eq i32 0, 0
br i1 false, label %if.end8, label %if.then6
if.then6: ; preds = %if.then
%3 = load ptr, ptr null, align 4
br label %if.end8
if.end8: ; preds = %if.then6, %if.then, %entry
ret i32 0
}
define i32 @w() !dbg !8 {
; CHECK-LABEL: define i32 @w(
; CHECK-SAME: ) !dbg [[DBG8:![0-9]+]] {
; CHECK-NEXT: entry:
; CHECK-NEXT: [[RETVAL_1_CE_LOC:%.*]] = alloca i32, align 4
; CHECK-NEXT: call void @llvm.lifetime.start.p0(i64 -1, ptr [[RETVAL_1_CE_LOC]])
; CHECK-NEXT: [[TMP0:%.*]] = call i1 @outlined_ir_func_0(ptr [[RETVAL_1_CE_LOC]], i32 1), !dbg [[DBG11:![0-9]+]]
; CHECK-NEXT: [[RETVAL_1_CE_RELOAD:%.*]] = load i32, ptr [[RETVAL_1_CE_LOC]], align 4
; CHECK-NEXT: call void @llvm.lifetime.end.p0(i64 -1, ptr [[RETVAL_1_CE_LOC]])
; CHECK-NEXT: br i1 [[TMP0]], label [[CLEANUP10:%.*]], label [[ENTRY_AFTER_OUTLINE:%.*]]
; CHECK: entry_after_outline:
; CHECK-NEXT: [[CALL8:%.*]] = call i32 @llvm.bswap.i32(i32 0)
; CHECK-NEXT: br label [[CLEANUP10]]
; CHECK: cleanup10:
; CHECK-NEXT: [[RETVAL_1:%.*]] = phi i32 [ 0, [[ENTRY_AFTER_OUTLINE]] ], [ [[RETVAL_1_CE_RELOAD]], [[ENTRY:%.*]] ]
; CHECK-NEXT: ret i32 0
;
entry:
%.fca.2.insert = insertvalue [5 x i32] zeroinitializer, i32 0, 2
%.fca.3.load = load i32, ptr null, align 4
%.fca.3.insert = insertvalue [5 x i32] zeroinitializer, i32 0, 3
%.fca.4.load = load i32, ptr null, align 4
%.fca.4.insert = insertvalue [5 x i32] zeroinitializer, i32 0, 4
%call = call i32 @p()
%tobool.not = icmp eq i32 0, 0
br i1 false, label %cleanup10, label %if.then
if.then: ; preds = %entry
call void @llvm.dbg.value(metadata i32 0, metadata !11, metadata !DIExpression()), !dbg !15
%0 = load i32, ptr null, align 4
%tobool1.not = icmp eq i32 0, 0
%1 = load i32, ptr null, align 4
%2 = load i32, ptr null, align 4
%cond = select i1 false, i32 0, i32 0
%tobool5.not = icmp eq i32 0, 0
br i1 false, label %cleanup10, label %cleanup
cleanup: ; preds = %if.then
%3 = load ptr, ptr null, align 4
%call8 = call i32 @llvm.bswap.i32(i32 0)
br label %cleanup10
cleanup10: ; preds = %cleanup, %if.then, %entry
%retval.1 = phi i32 [ 0, %cleanup ], [ 0, %entry ], [ 0, %if.then ]
ret i32 0
}
; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare void @llvm.dbg.value(metadata, metadata, metadata) #0
; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.bswap.i32(i32) #0
attributes #0 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!7}
!0 = distinct !DICompileUnit(language: DW_LANG_C11, file: !1, producer: "clang version 18.0.0 (https://github.com/llvm/llvm-project.git 2ca028ce7c6de5f1350440012355a65383b8729a)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, globals: !2, splitDebugInlining: false, nameTableKind: None)
!1 = !DIFile(filename: "/tmp/foo.c", directory: "/home/davidino/llvm-build-upstream")
!2 = !{!3}
!3 = !DIGlobalVariableExpression(var: !4, expr: !DIExpression())
!4 = distinct !DIGlobalVariable(name: "n", scope: !0, file: !5, line: 19, type: !6, isLocal: false, isDefinition: true)
!5 = !DIFile(filename: "/tmp/foo.c", directory: "")
!6 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
!7 = !{i32 2, !"Debug Info Version", i32 3}
!8 = distinct !DISubprogram(name: "w", scope: !5, file: !5, line: 54, type: !9, scopeLine: 54, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !10)
!9 = !DISubroutineType(types: !10)
!10 = !{}
!11 = !DILocalVariable(name: "t", scope: !12, file: !5, line: 57, type: !14)
!12 = distinct !DILexicalBlock(scope: !13, file: !5, line: 56, column: 17)
!13 = distinct !DILexicalBlock(scope: !8, file: !5, line: 56, column: 11)
!14 = !DIDerivedType(tag: DW_TAG_typedef, name: "a", file: !5, line: 2, baseType: !6)
!15 = !DILocation(line: 0, scope: !12)
;.
; CHECK: [[META0:![0-9]+]] = distinct !DICompileUnit(language: DW_LANG_C11, file: [[META1:![0-9]+]], producer: "{{.*}}clang version {{.*}}", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, globals: [[META2:![0-9]+]], splitDebugInlining: false, nameTableKind: None)
; CHECK: [[META1]] = !DIFile(filename: "/tmp/foo.c", directory: {{.*}})
; CHECK: [[META2]] = !{[[META3:![0-9]+]]}
; CHECK: [[META3]] = !DIGlobalVariableExpression(var: [[META4:![0-9]+]], expr: !DIExpression())
; CHECK: [[META4]] = distinct !DIGlobalVariable(name: "n", scope: [[META0]], file: [[META5:![0-9]+]], line: 19, type: [[META6:![0-9]+]], isLocal: false, isDefinition: true)
; CHECK: [[META5]] = !DIFile(filename: "/tmp/foo.c", directory: "")
; CHECK: [[META6]] = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
; CHECK: [[DBG8]] = distinct !DISubprogram(name: "w", scope: [[META5]], file: [[META5]], line: 54, type: [[META9:![0-9]+]], scopeLine: 54, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: [[META0]], retainedNodes: [[META10:![0-9]+]])
; CHECK: [[META9]] = !DISubroutineType(types: [[META10]])
; CHECK: [[META10]] = !{}
; CHECK: [[DBG11]] = !DILocation(line: 0, scope: [[DBG8]])
;.
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