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| author | Jim Wilson <wilson@gcc.gnu.org> | 1996-08-12 14:43:22 -0700 |
|---|---|---|
| committer | Jim Wilson <wilson@gcc.gnu.org> | 1996-08-12 14:43:22 -0700 |
| commit | 2afeea0fa3280a0fc50945b4d4c3eec30475a0c6 (patch) | |
| tree | c98d0af44ad3264ac8ef3d8d7fd49d54b80d1ab6 /gcc/config/sh | |
| parent | f434403dd78bd9ecd8cfd721396170b9e05af2ea (diff) | |
| download | gcc-2afeea0fa3280a0fc50945b4d4c3eec30475a0c6.zip gcc-2afeea0fa3280a0fc50945b4d4c3eec30475a0c6.tar.gz gcc-2afeea0fa3280a0fc50945b4d4c3eec30475a0c6.tar.bz2 | |
(regno_reg_class): Change entry 23 from NO_REGS to GENERAL_REGS.
(initial_elimination_offset): New variable live_regs_mask. Add
code to handle RETURN_ADDRESS_POINTER_REGNUM.
From-SVN: r12627
Diffstat (limited to 'gcc/config/sh')
| -rw-r--r-- | gcc/config/sh/sh.c | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/gcc/config/sh/sh.c b/gcc/config/sh/sh.c index 834e60b..f7625a4 100644 --- a/gcc/config/sh/sh.c +++ b/gcc/config/sh/sh.c @@ -84,7 +84,7 @@ int regno_reg_class[FIRST_PSEUDO_REGISTER] = GENERAL_REGS, GENERAL_REGS, GENERAL_REGS, GENERAL_REGS, GENERAL_REGS, GENERAL_REGS, GENERAL_REGS, GENERAL_REGS, GENERAL_REGS, PR_REGS, T_REGS, NO_REGS, - MAC_REGS, MAC_REGS, FPUL_REGS, NO_REGS, + MAC_REGS, MAC_REGS, FPUL_REGS, GENERAL_REGS, FP0_REGS,FP_REGS, FP_REGS, FP_REGS, FP_REGS, FP_REGS, FP_REGS, FP_REGS, FP_REGS, FP_REGS, FP_REGS, FP_REGS, @@ -2074,8 +2074,8 @@ initial_elimination_offset (from, to) int total_saved_regs_space; int total_auto_space = get_frame_size (); - int live_regs_mask2; - calc_live_regs (®s_saved, &live_regs_mask2); + int live_regs_mask, live_regs_mask2; + live_regs_mask = calc_live_regs (®s_saved, &live_regs_mask2); total_saved_regs_space = (regs_saved) * 4; @@ -2089,6 +2089,19 @@ initial_elimination_offset (from, to) if (from == FRAME_POINTER_REGNUM && to == STACK_POINTER_REGNUM) return 0; + if (from == RETURN_ADDRESS_POINTER_REGNUM + && (to == FRAME_POINTER_REGNUM || to == STACK_POINTER_REGNUM)) + { + int i, n = 0; + for (i = PR_REG+1; i < 32; i++) + if (live_regs_mask & (1 << i)) + n += 4; + for (i = 32; i < FIRST_PSEUDO_REGISTER; i++) + if (live_regs_mask2 & (1 << (i - 32))) + n += 4; + return n + total_auto_space; + } + abort (); } |