rizin/subprojects/softfloat.wrap

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[wrap-git]
url = https://github.com/rizinorg/softfloat
revision = 537d18e71a51aea70f6b54334854f7014c6458c7
directory = softfloat
depth = 1
Improve RzIL floating-point support (#6626) The `RzFloat` changes fix or improve: - binary80 explicit-integer-bit, pseudo-value, infinity, and NaN handling; - binary16 conversions; - gradual underflow and directed rounding; - overflow, underflow, invalid-operation, and inexact exception reporting; - exception propagation through nested conversions and arithmetic operations; - binary80 fused multiply-add rounding, including reduced-precision and double-rounding edge cases; - thread-local SoftFloat state, preventing rounding state from leaking between threads. The `RzIL` changes add scoped binary80 precision support through `RzFloatRPrecision` and `FWITH_RPREC`. The supported precisions are 32, 64, and 80. Precision scopes restore the previous thread-local SoftFloat state after successful evaluation and evaluation failures. Runtime rounding modes are represented explicitly by dedicated pure opcodes: - `FCONVERT_WITH_RMODE` - `FROUND_WITH_RMODE` - `FSQRT_WITH_RMODE` - `FADD_WITH_RMODE` - `FSUB_WITH_RMODE` - `FMUL_WITH_RMODE` - `FDIV_WITH_RMODE` - `FMOD_WITH_RMODE` Their rounding-mode operand is a 32-bit IL bitvector whose values correspond to `RzFloatRMode`: RNE, RNA, RTP, RTN, and RTZ. Invalid operand widths are rejected by validation, while invalid runtime values cause evaluation to fail with an error. Dedicated opcodes keep runtime-controlled floating-point expressions compact. This is useful for architectures whose rounding mode is selected from register state and avoids the expression duplication caused by expanding every operation into nested `ITE` branches. The new operations are supported by: - construction, duplication, and destruction; - type and operand validation; - VM evaluation; - plain, Unicode, and JSON exporters; - graph output and opcode stringification. `FEXCEPT` now emits a VM event only when the queried exception is present, while preserving exceptions raised by nested conversions and arithmetic operations.
2026-08-10 01:06:17 +08:00
patch_directory = softfloat
[provide]
softfloat=softfloat_dep