From 2bb8656dadcaa521a9699ab2a2632b68da36c998 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Wed, 14 Aug 2013 09:46:38 -0700 Subject: [PATCH] tcg: Tidy generated code for tcg_outN Aliasing was forcing s->code_ptr to be re-read after the store. Keep the pointer in a local variable to help the compiler. Signed-off-by: Richard Henderson --- tcg/tcg.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/tcg/tcg.c b/tcg/tcg.c index dac8224024..42c95af66d 100644 --- a/tcg/tcg.c +++ b/tcg/tcg.c @@ -121,14 +121,16 @@ static inline void tcg_out8(TCGContext *s, uint8_t v) static inline void tcg_out16(TCGContext *s, uint16_t v) { - *(uint16_t *)s->code_ptr = v; - s->code_ptr += 2; + uint8_t *p = s->code_ptr; + *(uint16_t *)p = v; + s->code_ptr = p + 2; } static inline void tcg_out32(TCGContext *s, uint32_t v) { - *(uint32_t *)s->code_ptr = v; - s->code_ptr += 4; + uint8_t *p = s->code_ptr; + *(uint32_t *)p = v; + s->code_ptr = p + 4; } /* label relocation processing */