shylie/llvm-project
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
llvm-project/llvm/test/Transforms/SimplifyCFG/hoist-dbgvalue.ll
Stephen Tozer 094572701d
[RemoveDIs] Print IR with debug records by default (#91724) 
This patch makes the final major change of the RemoveDIs project, changing the
default IR output from debug intrinsics to debug records. This is expected to
break a large number of tests: every single one that tests for uses or
declarations of debug intrinsics and does not explicitly disable writing
records. 

If this patch has broken your downstream tests (or upstream tests on a
configuration I wasn't able to run):
1. If you need to immediately unblock a build, pass
`--write-experimental-debuginfo=false` to LLVM's option processing for all
failing tests (remember to use `-mllvm` for clang/flang to forward arguments to
LLVM).
2. For most test failures, the changes are trivial and mechanical, enough that
they can be done by script; see the migration guide for a guide on how to do
this: https://llvm.org/docs/RemoveDIsDebugInfo.html#test-updates
3. If any tests fail for reasons other than FileCheck check lines that need
updating, such as assertion failures, that is most likely a real bug with this
patch and should be reported as such.

For more information, see the recent PSA:
https://discourse.llvm.org/t/psa-ir-output-changing-from-debug-intrinsics-to-debug-records/79578
2024-06-14 15:07:27 +01:00

153 lines
6.5 KiB
LLVM
Raw Blame History

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes=simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S < %s | FileCheck %s
; RUN: opt -try-experimental-debuginfo-iterators -passes=simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S < %s | FileCheck %s
define i32 @foo(i32 %i) nounwind ssp !dbg !0 {
; CHECK-LABEL: @foo(
; CHECK-NEXT: entry:
; CHECK-NEXT: #dbg_value(i32 [[I:%.*]], [[META7:![0-9]+]], !DIExpression(), [[META8:![0-9]+]])
; CHECK-NEXT: #dbg_value(i32 0, [[META9:![0-9]+]], !DIExpression(), [[META11:![0-9]+]])
; CHECK-NEXT: [[COND:%.*]] = icmp ne i32 [[I]], 0, !dbg [[DBG12:![0-9]+]]
; CHECK-NEXT: br i1 [[COND]], label [[THEN:%.*]], label [[ELSE:%.*]], !dbg [[DBG12]]
; CHECK: then:
; CHECK-NEXT: [[CALL_1:%.*]] = call i32 (...) @bar(), !dbg [[DBG13:![0-9]+]]
; CHECK-NEXT: #dbg_value(i32 [[CALL_1]], [[META9]], !DIExpression(), [[DBG13]])
; CHECK-NEXT: br label [[EXIT:%.*]], !dbg [[DBG15:![0-9]+]]
; CHECK: else:
; CHECK-NEXT: [[CALL_2:%.*]] = call i32 (...) @bar(), !dbg [[DBG16:![0-9]+]]
; CHECK-NEXT: #dbg_value(i32 [[CALL_2]], [[META9]], !DIExpression(), [[DBG16]])
; CHECK-NEXT: br label [[EXIT]], !dbg [[DBG18:![0-9]+]]
; CHECK: exit:
; CHECK-NEXT: [[K_0:%.*]] = phi i32 [ [[CALL_1]], [[THEN]] ], [ [[CALL_2]], [[ELSE]] ]
; CHECK-NEXT: ret i32 [[K_0]], !dbg [[DBG19:![0-9]+]]
;
entry:
call void @llvm.dbg.value(metadata i32 %i, metadata !6, metadata !DIExpression()), !dbg !7
call void @llvm.dbg.value(metadata i32 0, metadata !9, metadata !DIExpression()), !dbg !11
%cond = icmp ne i32 %i, 0, !dbg !12
br i1 %cond, label %then, label %else, !dbg !12
then:
%call.1 = call i32 (...) @bar(), !dbg !13
call void @llvm.dbg.value(metadata i32 %call.1, metadata !9, metadata !DIExpression()), !dbg !13
br label %exit, !dbg !15
else:
%call.2 = call i32 (...) @bar(), !dbg !16
call void @llvm.dbg.value(metadata i32 %call.2, metadata !9, metadata !DIExpression()), !dbg !16
br label %exit, !dbg !18
exit:
%k.0 = phi i32 [ %call.1, %then ], [ %call.2, %else ]
ret i32 %k.0, !dbg !19
}
define i1 @hoist_with_debug2(i32 %x) !dbg !22 {
; CHECK-LABEL: @hoist_with_debug2(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TOBOOL_NOT:%.*]] = icmp ugt i32 [[X:%.*]], 2
; CHECK-NEXT: #dbg_value(i32 [[X]], [[META21:![0-9]+]], !DIExpression(), [[META23:![0-9]+]])
; CHECK-NEXT: #dbg_value(i32 [[X]], [[META21]], !DIExpression(), [[META23]])
; CHECK-NEXT: [[DOT:%.*]] = select i1 [[TOBOOL_NOT]], i1 false, i1 true
; CHECK-NEXT: ret i1 [[DOT]]
;
entry:
%tobool.not = icmp ugt i32 %x, 2
br i1 %tobool.not, label %cond.end.thread, label %cond.end.thread19
cond.end.thread19: ; preds = %land.lhs.true
call void @llvm.dbg.value(metadata i32 %x, metadata !24, metadata !DIExpression()), !dbg !25
br label %exit
cond.end.thread: ; preds = %land.lhs.true
call void @llvm.dbg.value(metadata i32 %x, metadata !24, metadata !DIExpression()), !dbg !25
br label %exit
exit:
%p = phi i1 [ true, %cond.end.thread19 ], [ false, %cond.end.thread ]
ret i1 %p
}
; Test case for PR49982.
define i16 @hoist_with_debug3_pr49982(i32 %x, i1 %c.2) !dbg !26 {
; CHECK-LABEL: @hoist_with_debug3_pr49982(
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[FOR_COND:%.*]]
; CHECK: for.cond:
; CHECK-NEXT: [[C_0:%.*]] = icmp sgt i32 [[X:%.*]], 0
; CHECK-NEXT: [[BRMERGE:%.*]] = select i1 [[C_0]], i1 true, i1 [[C_2:%.*]]
; CHECK-NEXT: [[DOTMUX:%.*]] = select i1 [[C_0]], i16 0, i16 20
; CHECK-NEXT: br i1 [[BRMERGE]], label [[COMMON_RET:%.*]], label [[FOR_COND]]
; CHECK: common.ret:
; CHECK-NEXT: ret i16 [[DOTMUX]]
;
entry:
br label %for.cond
for.cond:
%c.0 = icmp sgt i32 %x, 0
br i1 %c.0, label %check, label %latch
check:
%c.1 = icmp ugt i32 %x, 2
br i1 %c.1, label %then, label %else
then:
call void @llvm.dbg.value(metadata i32 %x, metadata !28, metadata !DIExpression()), !dbg !29
br label %exit.2
else:
call void @llvm.dbg.value(metadata i32 %x, metadata !28, metadata !DIExpression()), !dbg !29
br label %exit.2
latch:
br i1 %c.2, label %exit.1, label %for.cond
exit.1:
ret i16 20
exit.2:
ret i16 0
}
declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
declare i32 @bar(...)
declare void @llvm.dbg.value(metadata, metadata, metadata) nounwind readnone
!llvm.module.flags = !{!21}
!llvm.dbg.cu = !{!2}
!0 = distinct !DISubprogram(name: "foo", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !2, file: !20, scope: !1, type: !3)
!1 = !DIFile(filename: "b.c", directory: "/private/tmp")
!2 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang", isOptimized: true, emissionKind: FullDebug, file: !20)
!3 = !DISubroutineType(types: !4)
!4 = !{!5}
!5 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
!6 = !DILocalVariable(name: "i", line: 2, arg: 1, scope: !0, file: !1, type: !5)
!7 = !DILocation(line: 2, column: 13, scope: !0)
!9 = !DILocalVariable(name: "k", line: 3, scope: !10, file: !1, type: !5)
!10 = distinct !DILexicalBlock(line: 2, column: 16, file: !20, scope: !0)
!11 = !DILocation(line: 3, column: 12, scope: !10)
!12 = !DILocation(line: 4, column: 3, scope: !10)
!13 = !DILocation(line: 5, column: 5, scope: !14)
!14 = distinct !DILexicalBlock(line: 4, column: 10, file: !20, scope: !10)
!15 = !DILocation(line: 6, column: 3, scope: !14)
!16 = !DILocation(line: 7, column: 5, scope: !17)
!17 = distinct !DILexicalBlock(line: 6, column: 10, file: !20, scope: !10)
!18 = !DILocation(line: 8, column: 3, scope: !17)
!19 = !DILocation(line: 9, column: 3, scope: !10)
!20 = !DIFile(filename: "b.c", directory: "/private/tmp")
!21 = !{i32 1, !"Debug Info Version", i32 3}
!22 = distinct !DISubprogram(name: "bar", line: 20, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !2, file: !20, scope: !1, type: !3)
!23 = distinct !DILexicalBlock(line: 21, column: 33, file: !20, scope: !22)
!24 = !DILocalVariable(name: "y", line: 21, scope: !23, file: !1, type: !5)
!25 = !DILocation(line: 23, column: 3, scope: !23)
!26 = distinct !DISubprogram(name: "zar", line: 20, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !2, file: !20, scope: !1, type: !3)
!27 = distinct !DILexicalBlock(line: 31, column: 33, file: !20, scope: !26)
!28 = !DILocalVariable(name: "y", line: 21, scope: !27, file: !1, type: !5)
!29 = !DILocation(line: 33, column: 3, scope: !27)
Reference in New Issue View Git Blame Copy Permalink