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soft float state defaults.

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This commit is contained in:
Dale Weiler 2014-05-24 22:40:14 -04:00
parent ff80bf1aa2
commit 337d7ddbf4
1 changed files with 11 additions and 2 deletions
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13
fold.c
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@ -29,6 +29,10 @@
#define FOLD_STRING_UNTRANSLATE_HTSIZE 1024
#define FOLD_STRING_DOTRANSLATE_HTSIZE 1024
/* The options to use for inexact and arithmetic exceptions */
#define FOLD_ROUNDING SFLOAT_ROUND_NEAREST_EVEN
#define FOLD_TINYNESS SFLOAT_TBEFORE
/*
* The constant folder is also responsible for validating if the constant
* expressions produce valid results. We cannot trust the FPU control
@ -563,6 +567,11 @@ static GMQCC_INLINE void vec3_check_except(vec3_t a,
sfloat_t (*callback)(sfloat_state_t *, sfloat_t, sfloat_t))
{
vec3_soft_state_t state;
state.state[0].exceptionflags = 0;
state.state[0].roundingmode = FOLD_ROUNDING;
state.state[0].tiny = FOLD_TINYNESS;
memcpy(&state.state[1], &state.state[0], sizeof(sfloat_state_t) * 2);
if (!OPTS_FLAG(ARITHMETIC_EXCEPTIONS))
return;
@ -945,8 +954,8 @@ static bool fold_check_except_float(sfloat_t (*callback)(sfloat_state_t *, sfloa
if (!OPTS_FLAG(ARITHMETIC_EXCEPTIONS) && !OPTS_WARN(WARN_INEXACT_COMPARES))
return false;
s.roundingmode = SFLOAT_ROUND_NEAREST_EVEN;
s.tiny = SFLOAT_TBEFORE;
s.roundingmode = FOLD_ROUNDING;
s.tiny = FOLD_TINYNESS;
s.exceptionflags = 0;
ca.f = fold_immvalue_float(a);
cb.f = fold_immvalue_float(b);