From b0ad2de2032805ffbaff91d24647dc6fcc8a74ca Mon Sep 17 00:00:00 2001 From: Alan Modra Date: Mon, 7 Feb 2005 21:11:42 +0000 Subject: [PATCH] re PR target/19803 (__builtin_expect does not modify branch prediction for power4/5) PR target/19803 * predict.c (PROB_VERY_UNLIKELY): Use 1% instead of 10%. From-SVN: r94714 --- gcc/ChangeLog | 5 +++++ gcc/predict.c | 2 +- 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 0aa8f920ba1..be840ba2228 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2005-02-08 Alan Modra + + PR target/19803 + * predict.c (PROB_VERY_UNLIKELY): Use 1% instead of 10%. + 2005-02-07 Eric Botcazou PR debug/19327 diff --git a/gcc/predict.c b/gcc/predict.c index 7e0f0db93d4..30ad0fe17c9 100644 --- a/gcc/predict.c +++ b/gcc/predict.c @@ -67,7 +67,7 @@ static sreal real_zero, real_one, real_almost_one, real_br_prob_base, real_inv_br_prob_base, real_one_half, real_bb_freq_max; /* Random guesstimation given names. */ -#define PROB_VERY_UNLIKELY (REG_BR_PROB_BASE / 10 - 1) +#define PROB_VERY_UNLIKELY (REG_BR_PROB_BASE / 100 - 1) #define PROB_EVEN (REG_BR_PROB_BASE / 2) #define PROB_VERY_LIKELY (REG_BR_PROB_BASE - PROB_VERY_UNLIKELY) #define PROB_ALWAYS (REG_BR_PROB_BASE) -- 2.30.2