From 55272883acc8a5a6cf4d725bfd4713e7d347ce3b Mon Sep 17 00:00:00 2001 From: Kenneth Graunke Date: Thu, 13 Jun 2013 14:55:19 -0700 Subject: [PATCH] i965: Remove broken source type assertions from brw_alu3(). Commit 526ffdfc033ab01cf133cb7e8290c65d12ccc9be attempted to generalize the source register type assertions to allow D and UD. However, the src1 and src2 assertions actually checked src0.type against D and UD due to a copy and paste bug. It also began setting the source and destination register types based on dest.type, ignoring src0/src1/src2.type completely. BFE and BFI2 may actually pass mixed D/UD types and expect them to be ignored, which is arguably a bit sloppy, but not too crazy either. This patch simply removes the source register assertions as those values aren't used anyway. It also clarifies the comment above the block that sets the register types. Signed-off-by: Kenneth Graunke Reviewed-by: Anuj Phogat --- src/mesa/drivers/dri/i965/brw_eu_emit.c | 19 +++++-------------- 1 file changed, 5 insertions(+), 14 deletions(-) diff --git a/src/mesa/drivers/dri/i965/brw_eu_emit.c b/src/mesa/drivers/dri/i965/brw_eu_emit.c index 3d0db1b..f2cacd1 100644 --- a/src/mesa/drivers/dri/i965/brw_eu_emit.c +++ b/src/mesa/drivers/dri/i965/brw_eu_emit.c @@ -811,9 +811,6 @@ static struct brw_instruction *brw_alu3(struct brw_compile *p, assert(src0.file == BRW_GENERAL_REGISTER_FILE); assert(src0.address_mode == BRW_ADDRESS_DIRECT); assert(src0.nr < 128); - assert(src0.type == BRW_REGISTER_TYPE_F || - src0.type == BRW_REGISTER_TYPE_D || - src0.type == BRW_REGISTER_TYPE_UD); insn->bits2.da3src.src0_swizzle = src0.dw1.bits.swizzle; insn->bits2.da3src.src0_subreg_nr = get_3src_subreg_nr(src0); insn->bits2.da3src.src0_reg_nr = src0.nr; @@ -824,9 +821,6 @@ static struct brw_instruction *brw_alu3(struct brw_compile *p, assert(src1.file == BRW_GENERAL_REGISTER_FILE); assert(src1.address_mode == BRW_ADDRESS_DIRECT); assert(src1.nr < 128); - assert(src1.type == BRW_REGISTER_TYPE_F || - src0.type == BRW_REGISTER_TYPE_D || - src0.type == BRW_REGISTER_TYPE_UD); insn->bits2.da3src.src1_swizzle = src1.dw1.bits.swizzle; insn->bits2.da3src.src1_subreg_nr_low = get_3src_subreg_nr(src1) & 0x3; insn->bits3.da3src.src1_subreg_nr_high = get_3src_subreg_nr(src1) >> 2; @@ -838,9 +832,6 @@ static struct brw_instruction *brw_alu3(struct brw_compile *p, assert(src2.file == BRW_GENERAL_REGISTER_FILE); assert(src2.address_mode == BRW_ADDRESS_DIRECT); assert(src2.nr < 128); - assert(src2.type == BRW_REGISTER_TYPE_F || - src0.type == BRW_REGISTER_TYPE_D || - src0.type == BRW_REGISTER_TYPE_UD); insn->bits3.da3src.src2_swizzle = src2.dw1.bits.swizzle; insn->bits3.da3src.src2_subreg_nr = get_3src_subreg_nr(src2); insn->bits3.da3src.src2_rep_ctrl = src2.vstride == BRW_VERTICAL_STRIDE_0; @@ -849,12 +840,12 @@ static struct brw_instruction *brw_alu3(struct brw_compile *p, insn->bits1.da3src.src2_negate = src2.negate; if (intel->gen >= 7) { - /* For MAD and LRP, all incoming src types are float, but for BFE and - * BFI2, the three source types might not all be the same. src2, the - * primary argument, should match the type of the destination. + /* Set both the source and destination types based on dest.type, + * ignoring the source register types. The MAD and LRP emitters ensure + * that all four types are float. The BFE and BFI2 emitters, however, + * may send us mixed D and UD types and want us to ignore that and use + * the destination type. */ - assert(dest.type == src2.type); - switch (dest.type) { case BRW_REGISTER_TYPE_F: insn->bits1.da3src.src_type = BRW_3SRC_TYPE_F; -- 2.7.4