GlobalISel: Use LibcallLoweringInfo analysis in legalizer
This is mostly boilerplate to move various freestanding utility
functions into LegalizerHelper. LibcallLoweringInfo is currently
optional, mostly because threading it through assorted other
uses of LegalizerHelper is more difficult.
I had a lot of trouble getting this to work in the legacy pass
manager with setRequiresCodeGenSCCOrder, and am not happy with the
result. A sub-pass manager is introduced and this is invalidated,
so we're re-computing this unnecessarily.
IR: Promote "denormal-fp-math" to a first class attribute
Convert "denormal-fp-math" and "denormal-fp-math-f32" into a first
class denormal_fpenv attribute. Previously the query for the effective
deormal mode involved two string attribute queries with parsing. I'm
introducing more uses of this, so it makes sense to convert this
to a more efficient encoding. The old representation was also awkward
since it was split across two separate attributes. The new encoding
just stores the default and float modes as bitfields, largely avoiding
the need to consider if the other mode is set.
The syntax in the common cases looks like this:
`denormal_fpenv(preservesign,preservesign)`
`denormal_fpenv(float: preservesign,preservesign)`
`denormal_fpenv(dynamic,dynamic float: preservesign,preservesign)`
I wasn't sure about reusing the float type name instead of adding a
new keyword. It's parsed as a type but only accepts float. I'm also
debating switching the name to subnormal to match the current
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[mlir][AsmParser] Fix comment detection in string literals (#174125)
The error positioning logic in emitWrongTokenError() would incorrectly
identify '//' inside string literals as comment starts when backing up
to position diagnostics. For example, a URL like "http://example.com"
would cause the error to point at the '://' instead of the end of the
line.
Add findCommentStart() helper that properly skips '//' occurrences
inside string literals by tracking quote state and handling escape
sequences.
[NFC][TargetLowering] Make shouldExpandAtomicRMWInIR and shouldExpandAtomicCmpXchgInIR take a const Instruction pointer (#176073)
Splits out change from https://github.com/llvm/llvm-project/pull/176015
Changes shouldExpandAtomicRMWInIR to take a constant argument: This is
to allow some other TargetLowering constant-argument functions to call
it. This change touches several backends. An alternative solution
exists, but to me, this seems the "right" way.
www/freenginx-devel: respect CFLAGS and LDFLAGS
Adopt and move out ports infra variables of the main Makefile.
Sort out thid-party modules variables.
Bump PORTREVISION.
PR: 292432
Thanks to: fluffy
Sponsored by: tipi.work
[VPlan] Fold boolean select to xor if possible.
Fold select c, false, true -> not c. This allows for more accurate cost
estimation and fixes the underlying issue for the cost divergence
between legacy and VPlan-based cost model that caused the revert of
01d34eb38fa058 in ed004cf42bf57c.
https://alive2.llvm.org/ce/z/yVuSgW.
Fix ld.elf_so on non-espresso SMP and ibm4xx
The espresso test in ld.elf_so for espresso had two flaws:
1) It relied on emulation of the privileged mfpvr instruction for
userspace, which doesn't exist on ibm4xx platforms.
2) An && should have been an ||, which incorrectly caused the
workaround to be applied to all SMP systems.
Fixes PR# port-powerpc/59917
