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https://github.com/c64scene-ar/llvm-6502.git
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a65da70a54
This reapplies r225379.
ChangeLog:
- The assertion that this commit previously ran into about the inability
to handle indirect variables has since been removed and the backend
can handle this now.
- Testcases were upgrade to the new MDLocation format.
- Instead of keeping a DebugDeclares map, we now use
llvm::FindAllocaDbgDeclare().
Original commit message follows.
Debug info: Teach SROA how to update debug info for fragmented variables.
This allows us to generate debug info for extremely advanced code such as
typedef struct { long int a; int b;} S;
int foo(S s) {
return s.b;
}
which at -O1 on x86_64 is codegen'd into
define i32 @foo(i64 %s.coerce0, i32 %s.coerce1) #0 {
ret i32 %s.coerce1, !dbg !24
}
with this patch we emit the following debug info for this
TAG_formal_parameter [3]
AT_location( 0x00000000
0x0000000000000000 - 0x0000000000000006: rdi, piece 0x00000008, rsi, piece 0x00000004
0x0000000000000006 - 0x0000000000000008: rdi, piece 0x00000008, rax, piece 0x00000004 )
AT_name( "s" )
AT_decl_file( "/Volumes/Data/llvm/_build.ninja.release/test.c" )
Thanks to chandlerc, dblaikie, and echristo for their feedback on all
previous iterations of this patch!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226598 91177308-0d34-0410-b5e6-96231b3b80d8
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|---|---|---|
| .. | ||
| ADCE.cpp | ||
| AlignmentFromAssumptions.cpp | ||
| CMakeLists.txt | ||
| ConstantHoisting.cpp | ||
| ConstantProp.cpp | ||
| CorrelatedValuePropagation.cpp | ||
| DCE.cpp | ||
| DeadStoreElimination.cpp | ||
| EarlyCSE.cpp | ||
| FlattenCFGPass.cpp | ||
| GVN.cpp | ||
| InductiveRangeCheckElimination.cpp | ||
| IndVarSimplify.cpp | ||
| JumpThreading.cpp | ||
| LICM.cpp | ||
| LLVMBuild.txt | ||
| LoadCombine.cpp | ||
| LoopDeletion.cpp | ||
| LoopIdiomRecognize.cpp | ||
| LoopInstSimplify.cpp | ||
| LoopRerollPass.cpp | ||
| LoopRotation.cpp | ||
| LoopStrengthReduce.cpp | ||
| LoopUnrollPass.cpp | ||
| LoopUnswitch.cpp | ||
| LowerAtomic.cpp | ||
| Makefile | ||
| MemCpyOptimizer.cpp | ||
| MergedLoadStoreMotion.cpp | ||
| PartiallyInlineLibCalls.cpp | ||
| Reassociate.cpp | ||
| Reg2Mem.cpp | ||
| SampleProfile.cpp | ||
| Scalar.cpp | ||
| Scalarizer.cpp | ||
| ScalarReplAggregates.cpp | ||
| SCCP.cpp | ||
| SeparateConstOffsetFromGEP.cpp | ||
| SimplifyCFGPass.cpp | ||
| Sink.cpp | ||
| SROA.cpp | ||
| StructurizeCFG.cpp | ||
| TailRecursionElimination.cpp | ||