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llvm-project/llvm/test/CodeGen/AMDGPU/llvm.dbg.value.ll

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AMDGPU: Fix infinite loop with dbg_value Surprisingly SIOptimizeExecMaskingPreRA can infinite loop in some case with DBG_VALUE. Most tests using dbg_value are run at -O0, so don't run this pass. This seems to only happen when the value argument is undef. llvm-svn: 319808
2017-12-06 02:23:17 +08:00
; RUN: llc -O0 -march=amdgcn -mtriple=amdgcn-unknown-amdhsa -verify-machineinstrs < %s | FileCheck -check-prefixes=GCN,NOOPT %s
; RUN: llc -march=amdgcn -mtriple=amdgcn-unknown-amdhsa -verify-machineinstrs < %s | FileCheck -check-prefixes=GCN,OPT %s
AMDGPU: Fix assert on dbg_value instructions llvm-svn: 244728
2015-08-12 17:04:44 +08:00
AMDGPU: Fix infinite loop with dbg_value Surprisingly SIOptimizeExecMaskingPreRA can infinite loop in some case with DBG_VALUE. Most tests using dbg_value are run at -O0, so don't run this pass. This seems to only happen when the value argument is undef. llvm-svn: 319808
2017-12-06 02:23:17 +08:00
; GCN-LABEL: {{^}}test_debug_value:
; NOOPT: s_load_dwordx2 s[4:5]
AMDGPU: Disallow exec as SMEM instruction operand This is not in the list of valid inputs for the encoding. When spilling, copies from exec can be folded directly into the spill instruction which results in broken stores. This only fixes the operand constraints, more codegen work is required to avoid emitting the invalid spills. This sort of breaks the dbg.value test. Because the register class of the s_load_dwordx2 changes, there is a copy to SReg_64, and the copy is the operand of dbg_value. The copy is later dead, and removed from the dbg_value. llvm-svn: 288191
2016-11-30 03:39:53 +08:00
; FIXME: Why is the SGPR4_SGPR5 reference being removed from DBG_VALUE?
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
; NOOPT: ; kill: def $sgpr8_sgpr9 killed $sgpr4_sgpr5
AMDGPU: Fix infinite loop with dbg_value Surprisingly SIOptimizeExecMaskingPreRA can infinite loop in some case with DBG_VALUE. Most tests using dbg_value are run at -O0, so don't run this pass. This seems to only happen when the value argument is undef. llvm-svn: 319808
2017-12-06 02:23:17 +08:00
; NOOPT-NEXT: ;DEBUG_VALUE: test_debug_value:globalptr_arg <- undef
AMDGPU: Disallow exec as SMEM instruction operand This is not in the list of valid inputs for the encoding. When spilling, copies from exec can be folded directly into the spill instruction which results in broken stores. This only fixes the operand constraints, more codegen work is required to avoid emitting the invalid spills. This sort of breaks the dbg.value test. Because the register class of the s_load_dwordx2 changes, there is a copy to SReg_64, and the copy is the operand of dbg_value. The copy is later dead, and removed from the dbg_value. llvm-svn: 288191
2016-11-30 03:39:53 +08:00
AMDGPU: Fix infinite loop with dbg_value Surprisingly SIOptimizeExecMaskingPreRA can infinite loop in some case with DBG_VALUE. Most tests using dbg_value are run at -O0, so don't run this pass. This seems to only happen when the value argument is undef. llvm-svn: 319808
2017-12-06 02:23:17 +08:00
; GCN: flat_store_dword
; GCN: s_endpgm
AMDGPU: Mark all unspecified CC functions in tests as amdgpu_kernel Currently the default C calling convention functions are treated the same as compute kernels. Make this explicit so the default calling convention can be changed to a non-kernel. Converted with perl -pi -e 's/define void/define amdgpu_kernel void/' on the relevant test directories (and undoing in one place that actually wanted a non-kernel). llvm-svn: 298444
2017-03-22 05:39:51 +08:00
define amdgpu_kernel void @test_debug_value(i32 addrspace(1)* nocapture %globalptr_arg) #0 !dbg !4 {
AMDGPU: Fix assert on dbg_value instructions llvm-svn: 244728
2015-08-12 17:04:44 +08:00
entry:
AMDGPU: Fix infinite loop with dbg_value Surprisingly SIOptimizeExecMaskingPreRA can infinite loop in some case with DBG_VALUE. Most tests using dbg_value are run at -O0, so don't run this pass. This seems to only happen when the value argument is undef. llvm-svn: 319808
2017-12-06 02:23:17 +08:00
tail call void @llvm.dbg.value(metadata i32 addrspace(1)* %globalptr_arg, metadata !10, metadata !13), !dbg !14
AMDGPU: Fix assert on dbg_value instructions llvm-svn: 244728
2015-08-12 17:04:44 +08:00
store i32 123, i32 addrspace(1)* %globalptr_arg, align 4
ret void
}
AMDGPU: Fix infinite loop with dbg_value Surprisingly SIOptimizeExecMaskingPreRA can infinite loop in some case with DBG_VALUE. Most tests using dbg_value are run at -O0, so don't run this pass. This seems to only happen when the value argument is undef. llvm-svn: 319808
2017-12-06 02:23:17 +08:00
; Check for infinite loop in some cases with dbg_value in
; SIOptimizeExecMaskingPreRA (somehow related to undef argument).
; GCN-LABEL: {{^}}only_undef_dbg_value:
; NOOPT: ;DEBUG_VALUE: test_debug_value:globalptr_arg <- [DW_OP_constu 1, DW_OP_swap, DW_OP_xderef] undef
; NOOPT-NEXT: s_endpgm
; OPT: s_endpgm
define amdgpu_kernel void @only_undef_dbg_value() #1 {
bb:
call void @llvm.dbg.value(metadata <4 x float> undef, metadata !10, metadata !DIExpression(DW_OP_constu, 1, DW_OP_swap, DW_OP_xderef)) #2, !dbg !14
ret void
}
declare void @llvm.dbg.value(metadata, metadata, metadata) #1
AMDGPU: Fix assert on dbg_value instructions llvm-svn: 244728
2015-08-12 17:04:44 +08:00
AMDGPU: Remove superfluous string attributes from tests Also fix v_mac.ll not testing right thing for fneg llvm-svn: 275129
2016-07-12 07:35:48 +08:00
attributes #0 = { nounwind }
AMDGPU: Fix assert on dbg_value instructions llvm-svn: 244728
2015-08-12 17:04:44 +08:00
attributes #1 = { nounwind readnone }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!11, !12}
[PR27284] Reverse the ownership between DICompileUnit and DISubprogram. Currently each Function points to a DISubprogram and DISubprogram has a scope field. For member functions the scope is a DICompositeType. DIScopes point to the DICompileUnit to facilitate type uniquing. Distinct DISubprograms (with isDefinition: true) are not part of the type hierarchy and cannot be uniqued. This change removes the subprograms list from DICompileUnit and instead adds a pointer to the owning compile unit to distinct DISubprograms. This would make it easy for ThinLTO to strip unneeded DISubprograms and their transitively referenced debug info. Motivation ---------- Materializing DISubprograms is currently the most expensive operation when doing a ThinLTO build of clang. We want the DISubprogram to be stored in a separate Bitcode block (or the same block as the function body) so we can avoid having to expensively deserialize all DISubprograms together with the global metadata. If a function has been inlined into another subprogram we need to store a reference the block containing the inlined subprogram. Attached to https://llvm.org/bugs/show_bug.cgi?id=27284 is a python script that updates LLVM IR testcases to the new format. http://reviews.llvm.org/D19034 <rdar://problem/25256815> llvm-svn: 266446
2016-04-15 23:57:41 +08:00
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.8.0 (trunk 244715) (llvm/trunk 244718)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
AMDGPU: Fix assert on dbg_value instructions llvm-svn: 244728
2015-08-12 17:04:44 +08:00
!1 = !DIFile(filename: "/tmp/test_debug_value.cl", directory: "/Users/matt/src/llvm/build_debug")
!2 = !{}
[PR27284] Reverse the ownership between DICompileUnit and DISubprogram. Currently each Function points to a DISubprogram and DISubprogram has a scope field. For member functions the scope is a DICompositeType. DIScopes point to the DICompileUnit to facilitate type uniquing. Distinct DISubprograms (with isDefinition: true) are not part of the type hierarchy and cannot be uniqued. This change removes the subprograms list from DICompileUnit and instead adds a pointer to the owning compile unit to distinct DISubprograms. This would make it easy for ThinLTO to strip unneeded DISubprograms and their transitively referenced debug info. Motivation ---------- Materializing DISubprograms is currently the most expensive operation when doing a ThinLTO build of clang. We want the DISubprogram to be stored in a separate Bitcode block (or the same block as the function body) so we can avoid having to expensively deserialize all DISubprograms together with the global metadata. If a function has been inlined into another subprogram we need to store a reference the block containing the inlined subprogram. Attached to https://llvm.org/bugs/show_bug.cgi?id=27284 is a python script that updates LLVM IR testcases to the new format. http://reviews.llvm.org/D19034 <rdar://problem/25256815> llvm-svn: 266446
2016-04-15 23:57:41 +08:00
!4 = distinct !DISubprogram(name: "test_debug_value", scope: !1, file: !1, line: 1, type: !5, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !9)
AMDGPU: Fix assert on dbg_value instructions llvm-svn: 244728
2015-08-12 17:04:44 +08:00
!5 = !DISubroutineType(types: !6)
!6 = !{null, !7}
!7 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !8, size: 64, align: 32)
!8 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
!9 = !{!10}
!10 = !DILocalVariable(name: "globalptr_arg", arg: 1, scope: !4, file: !1, line: 1, type: !7)
!11 = !{i32 2, !"Dwarf Version", i32 4}
!12 = !{i32 2, !"Debug Info Version", i32 3}
!13 = !DIExpression()
DI: Require subprogram definitions to be distinct As a follow-up to r246098, require `DISubprogram` definitions (`isDefinition: true`) to be 'distinct'. Specifically, add an assembler check, a verifier check, and bitcode upgrading logic to combat testcase bitrot after the `DIBuilder` change. While working on the testcases, I realized that test/Linker/subprogram-linkonce-weak-odr.ll isn't relevant anymore. Its purpose was to check for a corner case in PR22792 where two subprogram definitions match exactly and share the same metadata node. The new verifier check, requiring that subprogram definitions are 'distinct', precludes that possibility. I updated almost all the IR with the following script: git grep -l -E -e '= !DISubprogram\(.* isDefinition: true' | grep -v test/Bitcode | xargs sed -i '' -e 's/= \(!DISubprogram(.*, isDefinition: true\)/= distinct \1/' Likely some variant of would work for out-of-tree testcases. llvm-svn: 246327
2015-08-29 04:26:49 +08:00
!14 = !DILocation(line: 1, column: 42, scope: !4)