From: Aurelien Jarno <aurelien@aurel32.net>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] [5682] target-mips: optimize gen_farith()
Date: Tue, 11 Nov 2008 11:50:33 +0000 [thread overview]
Message-ID: <E1KzrlR-0003yy-SM@cvs.savannah.gnu.org> (raw)
Revision: 5682
http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=5682
Author: aurel32
Date: 2008-11-11 11:50:33 +0000 (Tue, 11 Nov 2008)
Log Message:
-----------
target-mips: optimize gen_farith()
Optimize code generation in gen_farith():
- Temp variables are valid up to and *including* the brcond instruction.
Use them instead of temp local variables.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Modified Paths:
--------------
trunk/target-mips/translate.c
Modified: trunk/target-mips/translate.c
===================================================================
--- trunk/target-mips/translate.c 2008-11-11 11:50:25 UTC (rev 5681)
+++ trunk/target-mips/translate.c 2008-11-11 11:50:33 UTC (rev 5682)
@@ -6314,32 +6314,32 @@
case FOP(18, 16):
{
int l1 = gen_new_label();
- TCGv t0 = tcg_temp_local_new(TCG_TYPE_TL);
+ TCGv t0 = tcg_temp_new(TCG_TYPE_TL);
TCGv fp0 = tcg_temp_local_new(TCG_TYPE_I32);
gen_load_gpr(t0, ft);
tcg_gen_brcondi_tl(TCG_COND_NE, t0, 0, l1);
- tcg_temp_free(t0);
gen_load_fpr32(fp0, fs);
gen_store_fpr32(fp0, fd);
tcg_temp_free(fp0);
gen_set_label(l1);
+ tcg_temp_free(t0);
}
opn = "movz.s";
break;
case FOP(19, 16):
{
int l1 = gen_new_label();
- TCGv t0 = tcg_temp_local_new(TCG_TYPE_TL);
+ TCGv t0 = tcg_temp_new(TCG_TYPE_TL);
TCGv fp0 = tcg_temp_local_new(TCG_TYPE_I32);
gen_load_gpr(t0, ft);
tcg_gen_brcondi_tl(TCG_COND_EQ, t0, 0, l1);
- tcg_temp_free(t0);
gen_load_fpr32(fp0, fs);
gen_store_fpr32(fp0, fd);
tcg_temp_free(fp0);
gen_set_label(l1);
+ tcg_temp_free(t0);
}
opn = "movn.s";
break;
@@ -6733,32 +6733,32 @@
case FOP(18, 17):
{
int l1 = gen_new_label();
- TCGv t0 = tcg_temp_local_new(TCG_TYPE_TL);
+ TCGv t0 = tcg_temp_new(TCG_TYPE_TL);
TCGv fp0 = tcg_temp_local_new(TCG_TYPE_I64);
gen_load_gpr(t0, ft);
tcg_gen_brcondi_tl(TCG_COND_NE, t0, 0, l1);
- tcg_temp_free(t0);
gen_load_fpr64(ctx, fp0, fs);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free(fp0);
gen_set_label(l1);
+ tcg_temp_free(t0);
}
opn = "movz.d";
break;
case FOP(19, 17):
{
int l1 = gen_new_label();
- TCGv t0 = tcg_temp_local_new(TCG_TYPE_TL);
+ TCGv t0 = tcg_temp_new(TCG_TYPE_TL);
TCGv fp0 = tcg_temp_local_new(TCG_TYPE_I64);
gen_load_gpr(t0, ft);
tcg_gen_brcondi_tl(TCG_COND_EQ, t0, 0, l1);
- tcg_temp_free(t0);
gen_load_fpr64(ctx, fp0, fs);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free(fp0);
gen_set_label(l1);
+ tcg_temp_free(t0);
}
opn = "movn.d";
break;
@@ -7068,13 +7068,12 @@
check_cp1_64bitmode(ctx);
{
int l1 = gen_new_label();
- TCGv t0 = tcg_temp_local_new(TCG_TYPE_TL);
+ TCGv t0 = tcg_temp_new(TCG_TYPE_TL);
TCGv fp0 = tcg_temp_local_new(TCG_TYPE_I32);
TCGv fph0 = tcg_temp_local_new(TCG_TYPE_I32);
gen_load_gpr(t0, ft);
tcg_gen_brcondi_tl(TCG_COND_NE, t0, 0, l1);
- tcg_temp_free(t0);
gen_load_fpr32(fp0, fs);
gen_load_fpr32h(fph0, fs);
gen_store_fpr32(fp0, fd);
@@ -7082,6 +7081,7 @@
tcg_temp_free(fp0);
tcg_temp_free(fph0);
gen_set_label(l1);
+ tcg_temp_free(t0);
}
opn = "movz.ps";
break;
@@ -7089,13 +7089,12 @@
check_cp1_64bitmode(ctx);
{
int l1 = gen_new_label();
- TCGv t0 = tcg_temp_local_new(TCG_TYPE_TL);
+ TCGv t0 = tcg_temp_new(TCG_TYPE_TL);
TCGv fp0 = tcg_temp_local_new(TCG_TYPE_I32);
TCGv fph0 = tcg_temp_local_new(TCG_TYPE_I32);
gen_load_gpr(t0, ft);
tcg_gen_brcondi_tl(TCG_COND_EQ, t0, 0, l1);
- tcg_temp_free(t0);
gen_load_fpr32(fp0, fs);
gen_load_fpr32h(fph0, fs);
gen_store_fpr32(fp0, fd);
@@ -7103,6 +7102,7 @@
tcg_temp_free(fp0);
tcg_temp_free(fph0);
gen_set_label(l1);
+ tcg_temp_free(t0);
}
opn = "movn.ps";
break;
reply other threads:[~2008-11-11 11:50 UTC|newest]
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