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What was I thinking... fixing loop's jump creation so it doesn't try creating multiple jumps... this code is also much more readable

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Wolfgang (Blub) Bumiller 2012-05-04 12:24:44 +02:00
parent c670a8d278
commit 73749db6b4
1 changed files with 20 additions and 21 deletions
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41
ast.c
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@ -949,6 +949,8 @@ bool ast_loop_codegen(ast_loop *self, ast_function *func, bool lvalue, ir_value
ir_block *old_bcontinue; ir_block *old_bcontinue;
ir_block *old_bbreak; ir_block *old_bbreak;
ir_block *btemp;
(void)lvalue; (void)lvalue;
(void)out; (void)out;
@ -1081,14 +1083,13 @@ bool ast_loop_codegen(ast_loop *self, ast_function *func, bool lvalue, ir_value
/* Now all blocks are in place */ /* Now all blocks are in place */
/* From 'bin' we jump to whatever comes first */ /* From 'bin' we jump to whatever comes first */
if (bprecond && !ir_block_create_jump(bin, bprecond)) if (bprecond) tmpblock = bprecond;
return false; else if (bbody) tmpblock = bbody;
else if (bbody && !ir_block_create_jump(bin, bbody)) else if (bpostcond) tmpblock = bpostcond;
return false; else tmpblock = bout;
else if (bpostcond && !ir_block_create_jump(bin, bpostcond)) if (!ir_block_create_jump(bin, tmpblock))
return false;
else if ( !ir_block_create_jump(bin, bout))
return false; return false;
}
/* From precond */ /* From precond */
if (bprecond) if (bprecond)
@ -1106,27 +1107,25 @@ bool ast_loop_codegen(ast_loop *self, ast_function *func, bool lvalue, ir_value
/* from body */ /* from body */
if (bbody) if (bbody)
{ {
if (bincrement && !ir_block_create_jump(end_bbody, bincrement)) if (bincrement) tmpblock = bincrement;
return false; else if (bpostcond) tmpblock = bpostcond;
else if (bpostcond && !ir_block_create_jump(end_bbody, bpostcond)) else if (bprecond) tmpblock = bprecond;
return false; else tmpblock = bout;
else if (bprecond && !ir_block_create_jump(end_bbody, bprecond)) if (!ir_block_create_jump(end_bbody, tmpblock))
return false;
else if (!ir_block_create_jump(end_bbody, bout))
return false; return false;
}
} }
/* from increment */ /* from increment */
if (bincrement) if (bincrement)
{ {
if (bpostcond && !ir_block_create_jump(end_bincrement, bpostcond)) if (bpostcond) tmpblock = bpostcond;
return false; else if (bprecond) tmpblock = bprecond;
else if (bprecond && !ir_block_create_jump(end_bincrement, bprecond)) else if (bbody) tmpblock = bbody;
return false; else tmpblock = bout;
else if (bbody && !ir_block_create_jump(end_bincrement, bbody)) if (!ir_block_create_jump(end_bincrement, tmpblock))
return false;
else if (!ir_block_create_jump(end_bincrement, bout))
return false; return false;
}
} }
/* from postcond */ /* from postcond */