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add new target-specific abi0 pass

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The general idea is to give abis a
chance to talk before we've done all
the optimizations. Currently, all
targets eliminate {par,arg,ret}{sb,ub,...}
during this pass. The forthcoming
arm64_apple will, however, insert
proper extensions during abi0.

Moving forward abis can, for example,
lower small-aggregates passing there
so that memory optimizations can
interact better with function calls.
This commit is contained in:
Quentin Carbonneaux 2022-08-31 17:09:04 +02:00
parent 0b26cd4f5e
commit a9a70e30a8
7 changed files with 43 additions and 7 deletions
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4
Makefile
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@ -4,8 +4,8 @@
PREFIX = /usr/local
BINDIR = $(PREFIX)/bin
COMMOBJ = main.o util.o parse.o cfg.o mem.o ssa.o alias.o load.o copy.o \
fold.o live.o spill.o rega.o emit.o
COMMOBJ = main.o util.o parse.o abi.o cfg.o mem.o ssa.o alias.o load.o \
copy.o fold.o live.o spill.o rega.o emit.o
AMD64OBJ = amd64/targ.o amd64/sysv.o amd64/isel.o amd64/emit.o
ARM64OBJ = arm64/targ.o arm64/abi.o arm64/isel.o arm64/emit.o
RV64OBJ = rv64/targ.o rv64/abi.o rv64/isel.o rv64/emit.o