[RFC][IR] Remove `Constant::isZeroValue`
`Constant::isZeroValue` currently behaves same as `Constant::isNullValue` for
all types except floating-point, where it additionally returns true for negative
zero (`-0.0`). However, in practice, almost all callers operate on
integer/pointer types where the two are equivalent, and the few FP-relevant
callers have no meaningful dependence on the `-0.0` behavior.
This PR removes `isZeroValue` to eliminate the confusing API surface. All
callers are changed to `isNullValue` with no test failures.
`isZeroValue` will be reintroduced in a future change with clearer semantics:
when null pointers may have non-zero bit patterns, `isZeroValue` will check for
bitwise-all-zeros, while `isNullValue` will check for the semantic null (which
may be non-zero).
Add files missed in 56a7ce8416d181a2060d7a42
Skip usr.bin/diff3 tests as these contain text that gets misinterpreted
as merge conflict markers and blocks push with the relevant pre-receive
hook.
PR: 293186
[ELF,PPC64] Scope checkPPC64TLSRelax to section and simplify TLS markers
checkPPC64TLSRelax detects TLS GD/LD without TLSGD/TLSLD markers
(generated from old IBM XL) and disables TLS optimization. Previously it
set a per-file flag (ppc64DisableTLSRelax). Now scope it in the section
being scanned.
In addition, simplify the R_PPC64_TLSGD/R_PPC64_TLSLD marker handling:
the redundant `sym.setFlags(NEEDS_TLSIE)` is unnecessary as the
preceding GOT_TLSGD relocation already sets it.
[DAGCombiner] Fold trunc(build_vector(ext(x), ext(x)) -> build_vector(x,x) (#179857)
The original implementation performed the transformation when
isTruncateFree was true:
truncate(build_vector(x, x)) -> build_vector(truncate(x), truncate(x)).
In some cases, x comes from an ext, try to pre-truncate build_vectors
source operands
when the source operands of build_vectors comes from an ext.
Testcase from: https://gcc.godbolt.org/z/bbxbYK7dh
asmc: Add MacPro3,1 temperature sensor support
Test and verified with Sonicblue7
Reviewed by: adrian
Differential Revision: https://reviews.freebsd.org/D54952
[clang][Python] Use fstrings instead of string concatenations (#173861)
This PR replaces string concatenations and the older `%` string
interpolation with fstrings. These changes were originally part of
#173845 but have been moved to a new PR.
[ELF] Add target-specific relocation scanning for PPC32 (#181517)
Implement PPC::scanSectionImpl, following the pattern established for
x86 (#178846) and PPC64 (#181496). This merges the getRelExpr and TLS
handling for SHF_ALLOC sections into the target-specific scanner,
enabling devirtualization and eliminating abstraction overhead.
- Inline relocation classification into scanSectionImpl with a switch
on relocation type, replacing the generic rs.scan() path.
- Use processR_PC/processR_PLT_PC for common PC-relative and PLT
relocations.
- Handle R_PPC_PLTREL24 inline with addend masking via processAux,
removing the EM_PPC special case from process().
- Handle TLS GD/LD/IE directly, eliminating handleTlsRelocation,
getTlsGdRelaxSkip, and adjustTlsExpr overrides. Use handleTlsIe
for TLS IE, and handleTlsGd for R_PPC_GOT_TLSGD16.
- Use R_DTPREL unconditionally for DTPREL relocations, removing
R_RELAX_TLS_LD_TO_LE_ABS (PPC32 was the only user).
- Move TLS relaxation dispatch from relocateAlloc into relocate,
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