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update build cfg code

This commit is contained in:
fanfuqiang 2018-10-16 23:39:52 +08:00
parent 60cb5de6cf
commit cf8ba4ae9e
1 changed files with 18 additions and 16 deletions
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34
src/rap_plugin/rap-fe-cfi.c
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@ -459,11 +459,10 @@ cfi_make_blocks_and_edgs ()
stmt1;
lhs = t_;
ne_expr (lhs, s_);
// true
goto call_label;
// FALLTHRU
<bb ???> # true
cfi_catch();
call_label:
<bb ???> # false
call fptr;
+--------
@ -508,9 +507,9 @@ insert_cond_and_build_ssa_cfg (gimple_stmt_iterator *gp,
gimple_set_block (test, gimple_block (cs));
gsi_insert_before (&gsi, test, GSI_SAME_STMT);
// goto call_label
branch = gimple_build_goto (call);
gimple_set_block (branch, gimple_block (cs));
gsi_insert_before (&gsi, branch, GSI_SAME_STMT);
//branch = gimple_build_goto (call);
//gimple_set_block (branch, gimple_block (cs));
//gsi_insert_before (&gsi, branch, GSI_SAME_STMT);
/* catch function */
//hl_fe_cfi_catch ();
@ -519,10 +518,11 @@ insert_cond_and_build_ssa_cfg (gimple_stmt_iterator *gp,
gsi_insert_before (&gsi, catch, GSI_SAME_STMT);
/* call_label: */
label = create_artificial_label (gimple_location (cs));
call = gimple_build_label (label);
gimple_set_block (call, gimple_block (cs));
gsi_insert_before (&gsi, call, GSI_SAME_STMT);
//label = create_artificial_label (gimple_location (cs));
//call = gimple_build_label (label);
//gimple_set_block (call, gimple_block (cs));
//gsi_insert_before (&gsi, call, GSI_SAME_STMT);
call = cs;
// current statement should be original call.
gcc_assert (is_gimple_call (gsi_stmt (gsi)));
@ -535,8 +535,10 @@ insert_cond_and_build_ssa_cfg (gimple_stmt_iterator *gp,
/* We can sure we have this code fragment(write as gimple pointers):
# old code
assign
branch
test
<new bb> #true
catch
<old bb> #false
call
# old code */
/* Make the blocks & edges. */
@ -545,13 +547,13 @@ insert_cond_and_build_ssa_cfg (gimple_stmt_iterator *gp,
{
basic_block bb = ENTRY_BLOCK_PTR;
//
g = gsi_for_stmt (branch);
gsi_split_seq_before (&g, &branch);
bb = create_basic_block (branch, NULL, bb);
g = gsi_for_stmt (test);
gsi_split_seq_before (&g, &test);
bb = create_basic_block (test, NULL, bb);
gimple_set_bb (assign, bb);
gimple_set_bb (branch, bb);
gimple_set_bb (test, bb);
//
// EDGE_TRUE_VALUE
g = gsi_for_stmt (catch);
gsi_split_seq_before (&g, &catch);
bb = create_basic_block (catch, NULL, bb);