Module: Mesa Branch: master Commit: 7da9e1e61b4dbd627404941f72d2f7a40dc9153b URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=7da9e1e61b4dbd627404941f72d2f7a40dc9153b
Author: Tom Stellard <[email protected]> Date: Thu Jun 24 18:45:46 2010 -0700 r300/compiler: Fix loop unrolling --- .../dri/r300/compiler/radeon_emulate_loops.c | 16 +++++++++++++++- 1 files changed, 15 insertions(+), 1 deletions(-) diff --git a/src/mesa/drivers/dri/r300/compiler/radeon_emulate_loops.c b/src/mesa/drivers/dri/r300/compiler/radeon_emulate_loops.c index 696cfd5..131e9e7 100644 --- a/src/mesa/drivers/dri/r300/compiler/radeon_emulate_loops.c +++ b/src/mesa/drivers/dri/r300/compiler/radeon_emulate_loops.c @@ -267,8 +267,22 @@ static int transform_const_loop(struct emulate_loop_state * s, * simple, since we only support increment and decrement loops. */ limit_value = get_constant_value(s->C, limit, 0); - iterations = (int) ((limit_value - counter_value.Value) / + DBG("Limit is %f.\n", limit_value); + switch(loop->Cond->U.I.Opcode){ + case RC_OPCODE_SGT: + case RC_OPCODE_SLT: + iterations = (int) ceilf((limit_value - counter_value.Value) / count_inst.Amount); + break; + + case RC_OPCODE_SLE: + case RC_OPCODE_SGE: + iterations = (int) floorf((limit_value - counter_value.Value) / + count_inst.Amount) + 1; + break; + default: + return 0; + } DBG("Loop will have %d iterations.\n", iterations); _______________________________________________ mesa-commit mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/mesa-commit
