Comments (3)
Agreed.
from riscv-elf-psabi-doc.
AArch64 and x86-64 are both self-consistent here. The former chooses to both pass and return in an integer register pair. The latter uses an SSE and an integer register for both call and return.
For struct{float;int}, they both pass and return the entire struct in a single integer register. (Still self-consistent, but hard to believe it's the performant thing to do.)
from riscv-elf-psabi-doc.
My recent proposal addresses this (the G calling convention will pass and return this struct in fa0 + a0).
from riscv-elf-psabi-doc.
Related Issues (20)
- Specify relocation overflow checks HOT 1
- Specify a platform reserved register HOT 20
- Should calling convention also define ptrdiff_t? HOT 1
- Should we use lw/sw in push pop when we used ILP32, whether it's RV32 or RV64 HOT 3
- Operation semantics of __bf16 datatype HOT 2
- representation of GNU C fixed-size vectors HOT 4
- Deprecate R_RISCV_RVC_LUI? HOT 4
- Define GOT-Relative data relocation HOT 8
- Embedding R_RISCV_RELAX to another relocations HOT 7
- Define gp(x3) as global VLENB HOT 4
- Bitfield integer calling convention garbled
- Calling convention uses RV64GQ without definition or reference HOT 3
- Calling convention description of va_list et al. are unclear HOT 2
- Interpretation of floating-point types
- Linux ABI for Pointer Masking HOT 19
- New ABI for stack layout and frame pointer scheme HOT 4
- Change branch from "master" to "main" HOT 1
- Add CREL support HOT 3
- Add RELR support HOT 6
- Question about medlow's single 2 GiB address range HOT 1
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from riscv-elf-psabi-doc.