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llvm-project/llvm/test/DebugInfo/X86/stringpool.ll

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Always use the string pool, even when it makes the .o larger. This may help tools that read the debug info in the .o files by making the DIE sizes more consistent. llvm-svn: 143186
2011-10-28 13:29:47 +08:00
; RUN: llc -mtriple=x86_64-unknown-linux-gnu < %s | FileCheck %s --check-prefix=LINUX
; RUN: llc -mtriple=x86_64-darwin < %s | FileCheck %s --check-prefix=DARWIN
Teach our Dwarf emission to use the string pool. llvm-svn: 143097
2011-10-27 14:44:11 +08:00
Always use the string pool, even when it makes the .o larger. This may help tools that read the debug info in the .o files by making the DIE sizes more consistent. llvm-svn: 143186
2011-10-28 13:29:47 +08:00
@yyyy = common global i32 0, align 4
Teach our Dwarf emission to use the string pool. llvm-svn: 143097
2011-10-27 14:44:11 +08:00
!llvm.dbg.cu = !{!0}
Debug Info: update testing cases to specify the debug info version number. We are going to drop debug info without a version number or with a different version number, to make sure we don't crash when we see bitcode files with different debug info metadata format. llvm-svn: 195504
2013-11-23 05:49:45 +08:00
!llvm.module.flags = !{!9}
Teach our Dwarf emission to use the string pool. llvm-svn: 143097
2011-10-27 14:44:11 +08:00
IR: Give 'DI' prefix to debug info metadata Finish off PR23080 by renaming the debug info IR constructs from `MD*` to `DI*`. The last of the `DIDescriptor` classes were deleted in r235356, and the last of the related typedefs removed in r235413, so this has all baked for about a week. Note: If you have out-of-tree code (like a frontend), I recommend that you get everything compiling and tests passing with the *previous* commit before updating to this one. It'll be easier to keep track of what code is using the `DIDescriptor` hierarchy and what you've already updated, and I think you're extremely unlikely to insert bugs. YMMV of course. Back to *this* commit: I did this using the rename-md-di-nodes.sh upgrade script I've attached to PR23080 (both code and testcases) and filtered through clang-format-diff.py. I edited the tests for test/Assembler/invalid-generic-debug-node-*.ll by hand since the columns were off-by-three. It should work on your out-of-tree testcases (and code, if you've followed the advice in the previous paragraph). Some of the tests are in badly named files now (e.g., test/Assembler/invalid-mdcompositetype-missing-tag.ll should be 'dicompositetype'); I'll come back and move the files in a follow-up commit. llvm-svn: 236120
2015-04-30 00:38:44 +08:00
!0 = !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.1 (trunk 143009)", isOptimized: true, emissionKind: 0, file: !8, enums: !1, retainedTypes: !1, subprograms: !1, globals: !3, imports: !1)
IR: Make metadata typeless in assembly Now that `Metadata` is typeless, reflect that in the assembly. These are the matching assembly changes for the metadata/value split in r223802. - Only use the `metadata` type when referencing metadata from a call intrinsic -- i.e., only when it's used as a `Value`. - Stop pretending that `ValueAsMetadata` is wrapped in an `MDNode` when referencing it from call intrinsics. So, assembly like this: define @foo(i32 %v) { call void @llvm.foo(metadata !{i32 %v}, metadata !0) call void @llvm.foo(metadata !{i32 7}, metadata !0) call void @llvm.foo(metadata !1, metadata !0) call void @llvm.foo(metadata !3, metadata !0) call void @llvm.foo(metadata !{metadata !3}, metadata !0) ret void, !bar !2 } !0 = metadata !{metadata !2} !1 = metadata !{i32* @global} !2 = metadata !{metadata !3} !3 = metadata !{} turns into this: define @foo(i32 %v) { call void @llvm.foo(metadata i32 %v, metadata !0) call void @llvm.foo(metadata i32 7, metadata !0) call void @llvm.foo(metadata i32* @global, metadata !0) call void @llvm.foo(metadata !3, metadata !0) call void @llvm.foo(metadata !{!3}, metadata !0) ret void, !bar !2 } !0 = !{!2} !1 = !{i32* @global} !2 = !{!3} !3 = !{} I wrote an upgrade script that handled almost all of the tests in llvm and many of the tests in cfe (even handling many `CHECK` lines). I've attached it (or will attach it in a moment if you're speedy) to PR21532 to help everyone update their out-of-tree testcases. This is part of PR21532. llvm-svn: 224257
2014-12-16 03:07:53 +08:00
!1 = !{}
!3 = !{!5}
IR: Give 'DI' prefix to debug info metadata Finish off PR23080 by renaming the debug info IR constructs from `MD*` to `DI*`. The last of the `DIDescriptor` classes were deleted in r235356, and the last of the related typedefs removed in r235413, so this has all baked for about a week. Note: If you have out-of-tree code (like a frontend), I recommend that you get everything compiling and tests passing with the *previous* commit before updating to this one. It'll be easier to keep track of what code is using the `DIDescriptor` hierarchy and what you've already updated, and I think you're extremely unlikely to insert bugs. YMMV of course. Back to *this* commit: I did this using the rename-md-di-nodes.sh upgrade script I've attached to PR23080 (both code and testcases) and filtered through clang-format-diff.py. I edited the tests for test/Assembler/invalid-generic-debug-node-*.ll by hand since the columns were off-by-three. It should work on your out-of-tree testcases (and code, if you've followed the advice in the previous paragraph). Some of the tests are in badly named files now (e.g., test/Assembler/invalid-mdcompositetype-missing-tag.ll should be 'dicompositetype'); I'll come back and move the files in a follow-up commit. llvm-svn: 236120
2015-04-30 00:38:44 +08:00
!5 = !DIGlobalVariable(name: "yyyy", line: 1, isLocal: false, isDefinition: true, scope: null, file: !6, type: !7, variable: i32* @yyyy)
!6 = !DIFile(filename: "z.c", directory: "/home/nicholas")
!7 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
!8 = !DIFile(filename: "z.c", directory: "/home/nicholas")
Teach our Dwarf emission to use the string pool. llvm-svn: 143097
2011-10-27 14:44:11 +08:00
Move emission of the debug string table to early in the debug info finalization to greatly reduce the number of fixups that the assembler has to handle in order to improve compile time. llvm-svn: 191119
2013-09-21 07:22:52 +08:00
; Verify that "yyyy" ended up in the stringpool.
; LINUX: .section .debug_str,"MS",@progbits,1
; LINUX: yyyy
; DARWIN: .section __DWARF,__debug_str,regular,debug
AsmPrinter: Emit the DwarfStringPool offset directly when possible Change `DwarfStringPool` to calculate byte offsets on-the-fly, and update `DwarfUnit::getLocalString()` to use a `DIEInteger` instead of a `DIEDelta` when Dwarf doesn't use relocations (i.e., Mach-O). This eliminates another call to `EmitLabelDifference()`, and drops memory usage from 865 MB down to 861 MB, around 0.5%. (I'm looking at `llc` memory usage on `verify-uselistorder.lto.opt.bc`; see r236629 for details.) llvm-svn: 238114
2015-05-25 00:14:59 +08:00
; DARWIN: .asciz "yyyy" ## string offset=[[YYYY:[0-9]+]]
Move emission of the debug string table to early in the debug info finalization to greatly reduce the number of fixups that the assembler has to handle in order to improve compile time. llvm-svn: 191119
2013-09-21 07:22:52 +08:00
Always use the string pool, even when it makes the .o larger. This may help tools that read the debug info in the .o files by making the DIE sizes more consistent. llvm-svn: 143186
2011-10-28 13:29:47 +08:00
; Verify that we refer to 'yyyy' with a relocation.
For the dwarf5 split debug info code split out the string section per compile unit/skeleton compile unit. Update tests accordingly. llvm-svn: 171133
2012-12-27 10:14:01 +08:00
; LINUX: .long .Linfo_string3 # DW_AT_name
Debug Info: instead of calling addToContextOwner which constructs the context after the DIE creation, we construct the context first. This touches creation of namespaces and global variables. The purpose is to handle all DIE creations similarly: constructs the context first, then creates the DIE and immediately adds the DIE to its parent. We use createAndAddDIE to wrap around "new DIE(". llvm-svn: 193589
2013-10-29 13:49:41 +08:00
; LINUX-NEXT: .long {{[0-9]+}} # DW_AT_type
Use DW_FORM_flag_present to save space in debug information if we're not in darwin gdb compat mode. Fixes rdar://10975088 llvm-svn: 162526
2012-08-24 09:14:27 +08:00
; LINUX-NEXT: # DW_AT_external
Teach our Dwarf emission to use the string pool. llvm-svn: 143097
2011-10-27 14:44:11 +08:00
; LINUX-NEXT: .byte 1 # DW_AT_decl_file
Always use the string pool, even when it makes the .o larger. This may help tools that read the debug info in the .o files by making the DIE sizes more consistent. llvm-svn: 143186
2011-10-28 13:29:47 +08:00
; LINUX-NEXT: .byte 1 # DW_AT_decl_line
Teach our Dwarf emission to use the string pool. llvm-svn: 143097
2011-10-27 14:44:11 +08:00
; LINUX-NEXT: .byte 9 # DW_AT_location
; LINUX-NEXT: .byte 3
Always use the string pool, even when it makes the .o larger. This may help tools that read the debug info in the .o files by making the DIE sizes more consistent. llvm-svn: 143186
2011-10-28 13:29:47 +08:00
; LINUX-NEXT: .quad yyyy
Teach our Dwarf emission to use the string pool. llvm-svn: 143097
2011-10-27 14:44:11 +08:00
AsmPrinter: Emit the DwarfStringPool offset directly when possible Change `DwarfStringPool` to calculate byte offsets on-the-fly, and update `DwarfUnit::getLocalString()` to use a `DIEInteger` instead of a `DIEDelta` when Dwarf doesn't use relocations (i.e., Mach-O). This eliminates another call to `EmitLabelDifference()`, and drops memory usage from 865 MB down to 861 MB, around 0.5%. (I'm looking at `llc` memory usage on `verify-uselistorder.lto.opt.bc`; see r236629 for details.) llvm-svn: 238114
2015-05-25 00:14:59 +08:00
; Verify that we refer to 'yyyy' with a direct offset.
; DARWIN: .long [[YYYY]]
Debug Info: instead of calling addToContextOwner which constructs the context after the DIE creation, we construct the context first. This touches creation of namespaces and global variables. The purpose is to handle all DIE creations similarly: constructs the context first, then creates the DIE and immediately adds the DIE to its parent. We use createAndAddDIE to wrap around "new DIE(". llvm-svn: 193589
2013-10-29 13:49:41 +08:00
; DARWIN-NEXT: .long {{[0-9]+}} ## DW_AT_type
Remove hack ensuring that darwin didn't produce dwarf > 3 for modules without a limiting factor. Update all testcases accordingly. llvm-svn: 190002
2013-09-05 06:21:24 +08:00
; DARWIN-NEXT: ## DW_AT_external
Teach our Dwarf emission to use the string pool. llvm-svn: 143097
2011-10-27 14:44:11 +08:00
; DARWIN-NEXT: .byte 1 ## DW_AT_decl_file
Always use the string pool, even when it makes the .o larger. This may help tools that read the debug info in the .o files by making the DIE sizes more consistent. llvm-svn: 143186
2011-10-28 13:29:47 +08:00
; DARWIN-NEXT: .byte 1 ## DW_AT_decl_line
Teach our Dwarf emission to use the string pool. llvm-svn: 143097
2011-10-27 14:44:11 +08:00
; DARWIN-NEXT: .byte 9 ## DW_AT_location
; DARWIN-NEXT: .byte 3
Always use the string pool, even when it makes the .o larger. This may help tools that read the debug info in the .o files by making the DIE sizes more consistent. llvm-svn: 143186
2011-10-28 13:29:47 +08:00
; DARWIN-NEXT: .quad _yyyy
DebugInfo: Move new hierarchy into place Move the specialized metadata nodes for the new debug info hierarchy into place, finishing off PR22464. I've done bootstraps (and all that) and I'm confident this commit is NFC as far as DWARF output is concerned. Let me know if I'm wrong :). The code changes are fairly mechanical: - Bumped the "Debug Info Version". - `DIBuilder` now creates the appropriate subclass of `MDNode`. - Subclasses of DIDescriptor now expect to hold their "MD" counterparts (e.g., `DIBasicType` expects `MDBasicType`). - Deleted a ton of dead code in `AsmWriter.cpp` and `DebugInfo.cpp` for printing comments. - Big update to LangRef to describe the nodes in the new hierarchy. Feel free to make it better. Testcase changes are enormous. There's an accompanying clang commit on its way. If you have out-of-tree debug info testcases, I just broke your build. - `upgrade-specialized-nodes.sh` is attached to PR22564. I used it to update all the IR testcases. - Unfortunately I failed to find way to script the updates to CHECK lines, so I updated all of these by hand. This was fairly painful, since the old CHECKs are difficult to reason about. That's one of the benefits of the new hierarchy. This work isn't quite finished, BTW. The `DIDescriptor` subclasses are almost empty wrappers, but not quite: they still have loose casting checks (see the `RETURN_FROM_RAW()` macro). Once they're completely gutted, I'll rename the "MD" classes to "DI" and kill the wrappers. I also expect to make a few schema changes now that it's easier to reason about everything. llvm-svn: 231082
2015-03-04 01:24:31 +08:00
!9 = !{i32 1, !"Debug Info Version", i32 3}