Commit Graph

56 Commits

Author SHA1 Message Date
Michael Matz
9214087259 riscv: More insns, operands and arg slots
* load/store of FP ops
* load/store from symbols, VT_LLOCAL, some with large addend
* load of VT_JMP result
* calls with many args (stack slots)
* calls with FP args
* more operations: and/or/xor/div
2019-09-01 23:13:19 +02:00
Michael Matz
b1c7520886 riscv: more insns
* register indirect loads and stores
* load of local addresses
* indirect calls (uses ra as temporary reg if necessary)
* operations *, -, <<
* gen_cvt_sxtw: is not needed in most cases, let's see

tests2 runs until (incl) 09_do_while.
2019-09-01 23:13:18 +02:00
Michael Matz
16edda58b7 riscv: Add more ops and fixes
* implement compares, gtst and gsym/gjmp and add
* implement stores (simple cases)
* fix arg passing with more than one register arg, fix
  loads to not always use 8byte loads
* add some predefined macros: __riscv, __riscv_xlen,
  __SIZEOF_POINTER__ (needed by glibc header)

The first 5 tests of tests2 run now.
2019-09-01 23:13:08 +02:00
Michael Matz
ef7c1a4e96 riscv: Implement some loads and calls
so that a hello world works.
2019-08-14 18:22:18 +02:00
Michael Matz
35d7b5934e riscv: hacky prolog, epilog and return
this now allows to compile a simple working example:

  int main(void) { return 0; }
2019-08-14 18:22:14 +02:00
Michael Matz
0676d5bc23 riscv64: Add skeleton target 2019-08-14 18:18:46 +02:00