gallium/radeon: label basic blocks by the corresponding TGSI pc

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
This commit is contained in:
Nicolai Hähnle 2016-09-28 18:30:09 +02:00
parent 6f87d7a146
commit 89e9de2ea6

View file

@ -796,6 +796,17 @@ void radeon_llvm_emit_store(struct lp_build_tgsi_context *bld_base,
}
}
static void set_basicblock_name(LLVMBasicBlockRef bb, const char *base, int pc)
{
char buf[32];
/* Subtract 1 so that the number shown is that of the corresponding
* opcode in the TGSI dump, e.g. an if block has the same suffix as
* the instruction number of the corresponding TGSI IF.
*/
snprintf(buf, sizeof(buf), "%s%d", base, pc - 1);
LLVMSetValueName(LLVMBasicBlockAsValue(bb), buf);
}
/* Emit a branch to the given default target for the current block if
* applicable -- that is, if the current block does not already contain a
* branch from a break or continue.
@ -818,6 +829,7 @@ static void bgnloop_emit(const struct lp_build_tgsi_action *action,
ctx->main_fn, "ENDLOOP");
loop_block = LLVMInsertBasicBlockInContext(gallivm->context,
endloop_block, "LOOP");
set_basicblock_name(loop_block, "loop", bld_base->pc);
LLVMBuildBr(gallivm->builder, loop_block);
LLVMPositionBuilderAtEnd(gallivm->builder, loop_block);
@ -870,6 +882,7 @@ static void else_emit(const struct lp_build_tgsi_action *action,
emit_default_branch(gallivm->builder, current_branch->endif_block);
current_branch->has_else = 1;
LLVMPositionBuilderAtEnd(gallivm->builder, current_branch->else_block);
set_basicblock_name(current_branch->else_block, "else", bld_base->pc);
}
static void endif_emit(const struct lp_build_tgsi_action *action,
@ -886,9 +899,11 @@ static void endif_emit(const struct lp_build_tgsi_action *action,
if (!LLVMGetBasicBlockTerminator(current_branch->else_block)) {
LLVMPositionBuilderAtEnd(gallivm->builder, current_branch->else_block);
LLVMBuildBr(gallivm->builder, current_branch->endif_block);
set_basicblock_name(current_branch->else_block, "empty_else", bld_base->pc);
}
LLVMPositionBuilderAtEnd(gallivm->builder, current_branch->endif_block);
set_basicblock_name(current_branch->endif_block, "endif", bld_base->pc);
ctx->branch_depth--;
}
@ -903,6 +918,7 @@ static void endloop_emit(const struct lp_build_tgsi_action *action,
emit_default_branch(gallivm->builder, current_loop->loop_block);
LLVMPositionBuilderAtEnd(gallivm->builder, current_loop->endloop_block);
set_basicblock_name(current_loop->endloop_block, "endloop", bld_base->pc);
ctx->loop_depth--;
}
@ -921,6 +937,7 @@ static void if_cond_emit(const struct lp_build_tgsi_action *action,
endif_block, "IF");
else_block = LLVMInsertBasicBlockInContext(gallivm->context,
endif_block, "ELSE");
set_basicblock_name(if_block, "if", bld_base->pc);
LLVMBuildCondBr(gallivm->builder, cond, if_block, else_block);
LLVMPositionBuilderAtEnd(gallivm->builder, if_block);