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gcc/gcc44-pr41175.patch

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2009-09-10 Nathan Froyd <froydnj@codesourcery.com>
PR target/40677
PR target/41175
* config/rs6000/rs6000.c (no_global_regs_above): Fix precedence
problem.
(rs6000_savres_routine_sym): Fix computation for cache selector.
Mark the generated symbol as a function.
(rs6000_emit_prologue): Correct use of call_used_regs.
(rs6000_emit_epilogue): Adjust computation of restore_lr.
Duplicate restoration of LR and execute the appropriate one
depending on whether GPRs are being restored inline.
* config/rs6000/rs6000.md (*save_gpregs_<mode>): Use explicit
match for register 11.
(*save_fpregs_<mode>): Likewise.
(*restore_gpregs_<mode>): Likewise.
(*return_and_restore_gpregs_<mode>): Likewise.
(*return_and_restore_fpregs_<mode>): Likewise.
* config/rs6000/spe.md (*save_gpregs_spe): Use explicit match for
register 11.
(*restore_gpregs_spe): Likewise.
(*return_and_restore_gpregs_spe): Likewise.
--- gcc/config/rs6000/spe.md.jj 2009-08-31 23:30:14.352526952 +0200
+++ gcc/config/rs6000/spe.md 2009-09-09 20:46:08.391404851 +0200
@@ -3156,9 +3156,9 @@
[(match_parallel 0 "any_parallel_operand"
[(clobber (reg:P 65))
(use (match_operand:P 1 "symbol_ref_operand" "s"))
- (use (match_operand:P 2 "gpc_reg_operand" "r"))
- (set (match_operand:V2SI 3 "memory_operand" "=m")
- (match_operand:V2SI 4 "gpc_reg_operand" "r"))])]
+ (use (reg:P 11))
+ (set (match_operand:V2SI 2 "memory_operand" "=m")
+ (match_operand:V2SI 3 "gpc_reg_operand" "r"))])]
"TARGET_SPE_ABI"
"bl %z1"
[(set_attr "type" "branch")
@@ -3168,9 +3168,9 @@
[(match_parallel 0 "any_parallel_operand"
[(clobber (reg:P 65))
(use (match_operand:P 1 "symbol_ref_operand" "s"))
- (use (match_operand:P 2 "gpc_reg_operand" "r"))
- (set (match_operand:V2SI 3 "gpc_reg_operand" "=r")
- (match_operand:V2SI 4 "memory_operand" "m"))])]
+ (use (reg:P 11))
+ (set (match_operand:V2SI 2 "gpc_reg_operand" "=r")
+ (match_operand:V2SI 3 "memory_operand" "m"))])]
"TARGET_SPE_ABI"
"bl %z1"
[(set_attr "type" "branch")
@@ -3181,9 +3181,9 @@
[(return)
(clobber (reg:P 65))
(use (match_operand:P 1 "symbol_ref_operand" "s"))
- (use (match_operand:P 2 "gpc_reg_operand" "r"))
- (set (match_operand:V2SI 3 "gpc_reg_operand" "=r")
- (match_operand:V2SI 4 "memory_operand" "m"))])]
+ (use (reg:P 11))
+ (set (match_operand:V2SI 2 "gpc_reg_operand" "=r")
+ (match_operand:V2SI 3 "memory_operand" "m"))])]
"TARGET_SPE_ABI"
"b %z1"
[(set_attr "type" "branch")
--- gcc/config/rs6000/rs6000.c.jj 2009-09-09 20:45:10.794535794 +0200
+++ gcc/config/rs6000/rs6000.c 2009-09-09 20:46:57.195401830 +0200
@@ -18011,7 +18011,8 @@ static bool
no_global_regs_above (int first, bool gpr)
{
int i;
- for (i = first; i < gpr ? 32 : 64 ; i++)
+ int last = gpr ? 32 : 64;
+ for (i = first; i < last; i++)
if (global_regs[i])
return false;
return true;
@@ -18037,11 +18038,11 @@ rs6000_savres_routine_sym (rs6000_stack_
int regno = gpr ? info->first_gp_reg_save : (info->first_fp_reg_save - 32);
rtx sym;
int select = ((savep ? 1 : 0) << 2
- | (gpr
+ | (TARGET_SPE_ABI
/* On the SPE, we never have any FPRs, but we do have
32/64-bit versions of the routines. */
- ? (TARGET_SPE_ABI && info->spe_64bit_regs_used ? 1 : 0)
- : 0) << 1
+ ? (info->spe_64bit_regs_used ? 1 : 0)
+ : (gpr ? 1 : 0)) << 1
| (exitp ? 1: 0));
/* Don't generate bogus routine names. */
@@ -18076,6 +18077,7 @@ rs6000_savres_routine_sym (rs6000_stack_
sym = savres_routine_syms[regno-FIRST_SAVRES_REGISTER][select]
= gen_rtx_SYMBOL_REF (Pmode, ggc_strdup (name));
+ SYMBOL_REF_FLAGS (sym) |= SYMBOL_FLAG_FUNCTION;
}
return sym;
@@ -18289,7 +18291,7 @@ rs6000_emit_prologue (void)
int using_store_multiple;
int using_static_chain_p = (cfun->static_chain_decl != NULL_TREE
&& df_regs_ever_live_p (STATIC_CHAIN_REGNUM)
- && !call_used_regs[STATIC_CHAIN_REGNUM]);
+ && call_used_regs[STATIC_CHAIN_REGNUM]);
HOST_WIDE_INT sp_offset = 0;
if (TARGET_FIX_AND_CONTINUE)
@@ -19095,8 +19097,9 @@ rs6000_emit_epilogue (int sibcall)
|| (cfun->calls_alloca
&& !frame_pointer_needed));
restore_lr = (info->lr_save_p
- && restoring_GPRs_inline
- && restoring_FPRs_inline);
+ && (restoring_GPRs_inline
+ || (restoring_FPRs_inline
+ && info->first_fp_reg_save < 64)));
if (WORLD_SAVE_P (info))
{
@@ -19383,7 +19386,7 @@ rs6000_emit_epilogue (int sibcall)
/* Get the old lr if we saved it. If we are restoring registers
out-of-line, then the out-of-line routines can do this for us. */
- if (restore_lr)
+ if (restore_lr && restoring_GPRs_inline)
{
rtx mem = gen_frame_mem_offset (Pmode, frame_reg_rtx,
info->lr_save_offset + sp_offset);
@@ -19403,7 +19406,7 @@ rs6000_emit_epilogue (int sibcall)
/* Set LR here to try to overlap restores below. LR is always saved
above incoming stack, so it never needs REG_CFA_RESTORE. */
- if (restore_lr)
+ if (restore_lr && restoring_GPRs_inline)
emit_move_insn (gen_rtx_REG (Pmode, LR_REGNO),
gen_rtx_REG (Pmode, 0));
@@ -19639,6 +19642,18 @@ rs6000_emit_epilogue (int sibcall)
}
}
+ if (restore_lr && !restoring_GPRs_inline)
+ {
+ rtx mem = gen_frame_mem_offset (Pmode, frame_reg_rtx,
+ info->lr_save_offset + sp_offset);
+
+ emit_move_insn (gen_rtx_REG (Pmode, 0), mem);
+ }
+
+ if (restore_lr && !restoring_GPRs_inline)
+ emit_move_insn (gen_rtx_REG (Pmode, LR_REGNO),
+ gen_rtx_REG (Pmode, 0));
+
/* Restore fpr's if we need to do it without calling a function. */
if (restoring_FPRs_inline)
for (i = 0; i < 64 - info->first_fp_reg_save; i++)
--- gcc/config/rs6000/rs6000.md.jj 2009-08-31 23:30:14.383526862 +0200
+++ gcc/config/rs6000/rs6000.md 2009-09-09 21:03:19.667779689 +0200
@@ -15289,9 +15289,9 @@
[(match_parallel 0 "any_parallel_operand"
[(clobber (reg:P 65))
(use (match_operand:P 1 "symbol_ref_operand" "s"))
- (use (match_operand:P 2 "gpc_reg_operand" "r"))
- (set (match_operand:P 3 "memory_operand" "=m")
- (match_operand:P 4 "gpc_reg_operand" "r"))])]
+ (use (reg:P 11))
+ (set (match_operand:P 2 "memory_operand" "=m")
+ (match_operand:P 3 "gpc_reg_operand" "r"))])]
""
"bl %z1"
[(set_attr "type" "branch")
@@ -15301,9 +15301,9 @@
[(match_parallel 0 "any_parallel_operand"
[(clobber (reg:P 65))
(use (match_operand:P 1 "symbol_ref_operand" "s"))
- (use (match_operand:P 2 "gpc_reg_operand" "r"))
- (set (match_operand:DF 3 "memory_operand" "=m")
- (match_operand:DF 4 "gpc_reg_operand" "f"))])]
+ (use (reg:P 11))
+ (set (match_operand:DF 2 "memory_operand" "=m")
+ (match_operand:DF 3 "gpc_reg_operand" "f"))])]
""
"bl %z1"
[(set_attr "type" "branch")
@@ -15394,11 +15394,11 @@
(define_insn "*restore_gpregs_<mode>"
[(match_parallel 0 "any_parallel_operand"
- [(clobber (match_operand:P 1 "register_operand" "=l"))
- (use (match_operand:P 2 "symbol_ref_operand" "s"))
- (use (match_operand:P 3 "gpc_reg_operand" "r"))
- (set (match_operand:P 4 "gpc_reg_operand" "=r")
- (match_operand:P 5 "memory_operand" "m"))])]
+ [(clobber (match_operand:P 1 "register_operand" "=l"))
+ (use (match_operand:P 2 "symbol_ref_operand" "s"))
+ (use (reg:P 11))
+ (set (match_operand:P 3 "gpc_reg_operand" "=r")
+ (match_operand:P 4 "memory_operand" "m"))])]
""
"bl %z2"
[(set_attr "type" "branch")
@@ -15406,12 +15406,12 @@
(define_insn "*return_and_restore_gpregs_<mode>"
[(match_parallel 0 "any_parallel_operand"
- [(return)
+ [(return)
(clobber (match_operand:P 1 "register_operand" "=l"))
(use (match_operand:P 2 "symbol_ref_operand" "s"))
- (use (match_operand:P 3 "gpc_reg_operand" "r"))
- (set (match_operand:P 4 "gpc_reg_operand" "=r")
- (match_operand:P 5 "memory_operand" "m"))])]
+ (use (reg:P 11))
+ (set (match_operand:P 3 "gpc_reg_operand" "=r")
+ (match_operand:P 4 "memory_operand" "m"))])]
""
"b %z2"
[(set_attr "type" "branch")
@@ -15419,12 +15419,12 @@
(define_insn "*return_and_restore_fpregs_<mode>"
[(match_parallel 0 "any_parallel_operand"
- [(return)
+ [(return)
(clobber (match_operand:P 1 "register_operand" "=l"))
(use (match_operand:P 2 "symbol_ref_operand" "s"))
- (use (match_operand:P 3 "gpc_reg_operand" "r"))
- (set (match_operand:DF 4 "gpc_reg_operand" "=f")
- (match_operand:DF 5 "memory_operand" "m"))])]
+ (use (reg:P 11))
+ (set (match_operand:DF 3 "gpc_reg_operand" "=f")
+ (match_operand:DF 4 "memory_operand" "m"))])]
""
"b %z2"
[(set_attr "type" "branch")
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