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From: Richard Henderson <rth@twiddle.net>
To: qemu-devel@nongnu.org
Cc: aurelien@aurel32.net
Subject: [Qemu-devel] [PATCH v6 12/20] tcg-arm: Use R12 for the tcg temporary
Date: Tue, 23 Apr 2013 13:46:44 -0700	[thread overview]
Message-ID: <1366750012-25015-13-git-send-email-rth@twiddle.net> (raw)
In-Reply-To: <1366750012-25015-1-git-send-email-rth@twiddle.net>

R12 is call clobbered, while R8 is call saved.  This change
gives tcg one more call saved register for real data.

Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
---
 tcg/arm/tcg-target.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tcg/arm/tcg-target.c b/tcg/arm/tcg-target.c
index cc442b6..ff75379 100644
--- a/tcg/arm/tcg-target.c
+++ b/tcg/arm/tcg-target.c
@@ -113,7 +113,7 @@ static const int tcg_target_call_oarg_regs[2] = {
     TCG_REG_R0, TCG_REG_R1
 };
 
-#define TCG_REG_TMP  TCG_REG_R8
+#define TCG_REG_TMP  TCG_REG_R12
 
 static inline void reloc_abs32(void *code_ptr, tcg_target_long target)
 {
-- 
1.8.1.4

  parent reply	other threads:[~2013-04-23 20:47 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-04-23 20:46 [Qemu-devel] [PATCH v6 00/20] tcg-arm improvments Richard Henderson
2013-04-23 20:46 ` [Qemu-devel] [PATCH v6 01/20] tcg-arm: Fix local stack frame Richard Henderson
2013-04-24  7:42   ` Aurelien Jarno
2013-04-23 20:46 ` [Qemu-devel] [PATCH v6 02/20] tcg: Log the contents of the prologue with -d out_asm Richard Henderson
2013-04-26  5:27   ` Aurelien Jarno
2013-04-23 20:46 ` [Qemu-devel] [PATCH v6 03/20] tcg-arm: Use bic to implement and with constant Richard Henderson
2013-04-23 20:46 ` [Qemu-devel] [PATCH v6 04/20] tcg-arm: Handle negated constant arguments to and/sub Richard Henderson
2013-04-23 20:46 ` [Qemu-devel] [PATCH v6 05/20] tcg-arm: Allow constant first argument to sub Richard Henderson
2013-04-23 20:46 ` [Qemu-devel] [PATCH v6 06/20] tcg-arm: Use tcg_out_dat_rIN for compares Richard Henderson
2013-04-23 20:46 ` [Qemu-devel] [PATCH v6 07/20] tcg-arm: Handle constant arguments to add2/sub2 Richard Henderson
2013-04-23 20:46 ` [Qemu-devel] [PATCH v6 08/20] tcg-arm: Improve constant generation Richard Henderson
2013-04-23 20:46 ` [Qemu-devel] [PATCH v6 09/20] tcg-arm: Implement deposit for armv7 Richard Henderson
2013-04-24  7:42   ` Aurelien Jarno
2013-04-23 20:46 ` [Qemu-devel] [PATCH v6 10/20] tcg-arm: Implement division instructions Richard Henderson
2013-04-23 20:46 ` [Qemu-devel] [PATCH v6 11/20] tcg-arm: Use TCG_REG_TMP name for the tcg temporary Richard Henderson
2013-04-23 20:46 ` Richard Henderson [this message]
2013-04-23 20:46 ` [Qemu-devel] [PATCH v6 13/20] tcg-arm: Cleanup multiply subroutines Richard Henderson
2013-04-23 20:46 ` [Qemu-devel] [PATCH v6 14/20] tcg-arm: Cleanup most primitive load store subroutines Richard Henderson
2013-04-23 20:46 ` [Qemu-devel] [PATCH v6 15/20] tcg-arm: Split out tcg_out_tlb_read Richard Henderson
2013-04-23 20:46 ` [Qemu-devel] [PATCH v6 16/20] tcg-arm: Improve scheduling of tcg_out_tlb_read Richard Henderson
2013-04-24  7:43   ` Aurelien Jarno
2013-04-23 20:46 ` [Qemu-devel] [PATCH v6 17/20] tcg-arm: Delete the 'S' constraint Richard Henderson
2013-04-24  7:43   ` Aurelien Jarno
2013-04-23 20:46 ` [Qemu-devel] [PATCH v6 18/20] tcg-arm: Use movi32 + blx for calls on v7 Richard Henderson
2013-04-23 20:46 ` [Qemu-devel] [PATCH v6 19/20] tcg-arm: Convert to CONFIG_QEMU_LDST_OPTIMIZATION Richard Henderson
2013-04-24  7:43   ` Aurelien Jarno
2013-04-23 20:46 ` [Qemu-devel] [PATCH v6 20/20] tcg-arm: Remove long jump from tcg_out_goto_label Richard Henderson
2013-04-24  7:43   ` Aurelien Jarno
2013-04-26 10:08 ` [Qemu-devel] [PATCH v6 00/20] tcg-arm improvments Peter Maydell
2013-04-27  0:20 ` Aurelien Jarno

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