a9a70e30a8
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.
55 lines
1 KiB
C
55 lines
1 KiB
C
#include "all.h"
|
|
|
|
int arm64_rsave[] = {
|
|
R0, R1, R2, R3, R4, R5, R6, R7,
|
|
R8, R9, R10, R11, R12, R13, R14, R15,
|
|
IP0, IP1, R18, LR,
|
|
V0, V1, V2, V3, V4, V5, V6, V7,
|
|
V16, V17, V18, V19, V20, V21, V22, V23,
|
|
V24, V25, V26, V27, V28, V29, V30,
|
|
-1
|
|
};
|
|
int arm64_rclob[] = {
|
|
R19, R20, R21, R22, R23, R24, R25, R26,
|
|
R27, R28,
|
|
V8, V9, V10, V11, V12, V13, V14, V15,
|
|
-1
|
|
};
|
|
|
|
#define RGLOB (BIT(FP) | BIT(SP) | BIT(R18))
|
|
|
|
static int
|
|
arm64_memargs(int op)
|
|
{
|
|
(void)op;
|
|
return 0;
|
|
}
|
|
|
|
Target T_arm64 = {
|
|
.name = "arm64",
|
|
.gpr0 = R0,
|
|
.ngpr = NGPR,
|
|
.fpr0 = V0,
|
|
.nfpr = NFPR,
|
|
.rglob = RGLOB,
|
|
.nrglob = 3,
|
|
.rsave = arm64_rsave,
|
|
.nrsave = {NGPS, NFPS},
|
|
.retregs = arm64_retregs,
|
|
.argregs = arm64_argregs,
|
|
.memargs = arm64_memargs,
|
|
.abi0 = elimsb,
|
|
.abi1 = arm64_abi,
|
|
.isel = arm64_isel,
|
|
.emitfn = arm64_emitfn,
|
|
.emitfin = elf_emitfin,
|
|
.asloc = ".L",
|
|
};
|
|
|
|
MAKESURE(globals_are_not_arguments,
|
|
(RGLOB & (BIT(R8+1) - 1)) == 0
|
|
);
|
|
MAKESURE(arrays_size_ok,
|
|
sizeof arm64_rsave == (NGPS+NFPS+1) * sizeof(int) &&
|
|
sizeof arm64_rclob == (NCLR+1) * sizeof(int)
|
|
);
|