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pan/bi: Handle jumps (breaks, continues)

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Loops should behave reasonably now.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4097>
This commit is contained in:
Alyssa Rosenzweig 2020-03-05 17:10:46 -05:00 • committed by Marge Bot
parent 987aea1400
commit 65c8dcca3b
1 changed files with 60 additions and 1 deletions
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61
src/panfrost/bifrost/bifrost_compile.c
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@ -37,6 +37,65 @@
#include "bi_print.h"
static bi_block *emit_cf_list(bi_context *ctx, struct exec_list *list);
static bi_instruction *bi_emit_branch(bi_context *ctx);
static void bi_block_add_successor(bi_block *block, bi_block *successor);
static void
emit_jump(bi_context *ctx, nir_jump_instr *instr)
{
bi_instruction *branch = bi_emit_branch(ctx);
switch (instr->type) {
case nir_jump_break:
branch->branch.target = ctx->break_block;
break;
case nir_jump_continue:
branch->branch.target = ctx->continue_block;
break;
default:
unreachable("Unhandled jump type");
}
bi_block_add_successor(ctx->current_block, branch->branch.target);
}
static void
emit_instr(bi_context *ctx, struct nir_instr *instr)
{
switch (instr->type) {
#if 0
case nir_instr_type_load_const:
emit_load_const(ctx, nir_instr_as_load_const(instr));
break;
case nir_instr_type_intrinsic:
emit_intrinsic(ctx, nir_instr_as_intrinsic(instr));
break;
case nir_instr_type_alu:
emit_alu(ctx, nir_instr_as_alu(instr));
break;
case nir_instr_type_tex:
emit_tex(ctx, nir_instr_as_tex(instr));
break;
#endif
case nir_instr_type_jump:
emit_jump(ctx, nir_instr_as_jump(instr));
break;
case nir_instr_type_ssa_undef:
/* Spurious */
break;
default:
//unreachable("Unhandled instruction type");
break;
}
}
static bi_block *
create_empty_block(bi_context *ctx)
@ -88,7 +147,7 @@ emit_block(bi_context *ctx, nir_block *block)
list_inithead(&ctx->current_block->instructions);
nir_foreach_instr(instr, block) {
//emit_instr(ctx, instr);
emit_instr(ctx, instr);
++ctx->instruction_count;
}