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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 (); ...@@ -777,19 +777,21 @@ extern struct rtx_def *a29k_get_reloaded_address ();
/* Same, but called for incoming args. /* Same, but called for incoming args.
On the 29k, we use this to set all argument registers to fixed and 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 set the last 16 local regs, less two, (lr110-lr125) to available. Some
will later be changed to call-saved by FUNCTION_INCOMING_ARG. */ 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; \ { 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; \ fixed_regs[i] = call_used_regs[i] = call_fixed_regs[i] = 1; \
SET_HARD_REG_BIT (fixed_reg_set, i); \ SET_HARD_REG_BIT (fixed_reg_set, i); \
SET_HARD_REG_BIT (call_used_reg_set, i); \ SET_HARD_REG_BIT (call_used_reg_set, i); \
SET_HARD_REG_BIT (call_fixed_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; \ fixed_regs[i] = call_used_regs[i] = call_fixed_regs[i] = 0; \
CLEAR_HARD_REG_BIT (fixed_reg_set, i); \ CLEAR_HARD_REG_BIT (fixed_reg_set, i); \
......
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