Patchwork [13/18] TCG/MIPS: use stack for TCG temps

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Submitter Blue Swirl
Date May 28, 2011, 10:08 a.m.
Message ID <BANLkTinMTD92V2tKio1k=pzpHo0YTkpYmQ@mail.gmail.com>
Download mbox | patch
Permalink /patch/97790/
State New
Headers show

Comments

Blue Swirl - May 28, 2011, 10:08 a.m.
Use stack instead of temp_buf array in CPUState for TCG temps.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
---
 tcg/mips/tcg-target.c |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

Patch

diff --git a/tcg/mips/tcg-target.c b/tcg/mips/tcg-target.c
index 79e20fa..d536457 100644
--- a/tcg/mips/tcg-target.c
+++ b/tcg/mips/tcg-target.c
@@ -1472,9 +1472,12 @@  static void tcg_target_qemu_prologue(TCGContext *s)

     /* reserve some stack space */
     frame_size = ARRAY_SIZE(tcg_target_callee_save_regs) * 4
-                 + TCG_STATIC_CALL_ARGS_SIZE;
+        + TCG_STATIC_CALL_ARGS_SIZE + CPU_TEMP_BUF_NLONGS * sizeof(long);
     frame_size = (frame_size + TCG_TARGET_STACK_ALIGN - 1) &
                  ~(TCG_TARGET_STACK_ALIGN - 1);
+    tcg_set_frame(s, TCG_REG_CALL_STACK, frame_size
+                  - CPU_TEMP_BUF_NLONGS * sizeof(long),
+                  CPU_TEMP_BUF_NLONGS * sizeof(long));

     /* TB prologue */
     tcg_out_addi(s, TCG_REG_CALL_STACK, -frame_size);
@@ -1529,6 +1532,4 @@  static void tcg_target_init(TCGContext *s)
     tcg_regset_set_reg(s->reserved_regs, TCG_REG_CALL_STACK);

     tcg_add_target_add_op_defs(mips_op_defs);
-    tcg_set_frame(s, TCG_AREG0, offsetof(CPUState, temp_buf),
-                  CPU_TEMP_BUF_NLONGS * sizeof(long));
 }