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riscv-gcc-1
Commit eb7d5627 by Doug Evans
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(INIT_CUMULATIVE_INCOMING_ARGS): Reserve two regs for caller's lr0,lr1. 

From-SVN: r8758
parent 23c97802
Showing with 7 additions and 5 deletions
gcc/config/a29k/a29k.h
......@@ -777,19 +777,21 @@ extern struct rtx_def *a29k_get_reloaded_address ();
/* Same, but called for incoming args.
On the 29k, we use this to set all argument registers to fixed and
set the last 16 local regs (lr112-lr127) to available. Some
will later be changed to call-saved by FUNCTION_INCOMING_ARG. */
set the last 16 local regs, less two, (lr110-lr125) to available. Some
will later be changed to call-saved by FUNCTION_INCOMING_ARG.
lr126,lr127 are always fixed, they are place holders for the caller's
lr0,lr1. */
#define INIT_CUMULATIVE_INCOMING_ARGS(CUM,FNTYPE,IGNORE) \
#define INIT_CUMULATIVE_INCOMING_ARGS(CUM,FNTYPE,IGNORE) \
{ int i; \
for (i = R_AR (0); i < R_AR (16); i++) \
for (i = R_AR (0) - 2; i < R_AR (16); i++) \
{ \
fixed_regs[i] = call_used_regs[i] = call_fixed_regs[i] = 1; \
SET_HARD_REG_BIT (fixed_reg_set, i); \
SET_HARD_REG_BIT (call_used_reg_set, i); \
SET_HARD_REG_BIT (call_fixed_reg_set, i); \
} \
for (i = R_LR (112); i < R_LR (128); i++) \
for (i = R_LR (110); i < R_LR (126); i++) \
{ \
fixed_regs[i] = call_used_regs[i] = call_fixed_regs[i] = 0; \
CLEAR_HARD_REG_BIT (fixed_reg_set, i); \
......
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