Jeremy Morse 12a2f7494e [DebugInfo][InstrRef] Prefer stack locations for variables ... This patch adjusts what location is picked for a known variable value -- preferring to leave locations on the stack, even when a value is re-loaded into a register. The benefit is reduced location list entropy, on a clang-3.4 build I found that .debug_loclists reduces in size by 6%, from 29Mb down to 27Mb. Testing: a few tests need the stack slot to be written to explicitly, to force LiveDebugValues into restoring the variable location to a register. I've added an explicit test for the desired behaviour in livedebugvalues_recover_clobbers.mir . Differential Revision: https://reviews.llvm.org/D120732		2022-03-17 14:26:15 +00:00
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AArch64	Fix a fragment overflow problem when composing super-registers.	2022-01-31 09:47:29 -08:00
ARM	CodeGen: Print/parse LLTs in MachineMemOperands	2021-06-30 16:54:13 -04:00
Hexagon	[RemoveRedundantDebugValues] Add a Pass that removes redundant DBG_VALUEs	2021-07-14 04:29:42 -07:00
InstrRef	[DebugInfo][InstrRef] Prefer stack locations for variables	2022-03-17 14:26:15 +00:00
Mips	CodeGen: Print/parse LLTs in MachineMemOperands	2021-06-30 16:54:13 -04:00
SystemZ	[SystemZ] Separate LoZ ELF specifics in tablegen.	2021-02-17 16:11:58 -05:00
X86	[DebugInfo][InstrRef] Prefer stack locations for variables	2022-03-17 14:26:15 +00:00
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