54 Commits

Author	SHA1	Message	Date
Misha Brukman	dbb7b65bf3	Fun arithmetic with iterators aimed at fixing a bug: inserting instructions ... after the *current* instruction while keeping the iterator in the same 'logical' place. llvm-svn: 4923	2002-12-04 19:24:45 +00:00
Misha Brukman	a8ad93221a	This should fix the bug seen with some registers not being allocated ... correctly: skipping instructions by incorrectly incrementing the pointer. Also adds support for building a reg-to-regclass map, and splits the function for saving register to stack into two, one suitable for virtual registers (which also assigns it a physical register) and one for simply storing back physical registers. llvm-svn: 4898	2002-12-03 23:15:19 +00:00
Misha Brukman	2e035d64d1	* Abstracted out stack space allocation into its own function ... * Added saving of register values to the stack llvm-svn: 4858	2002-12-02 21:11:58 +00:00
Misha Brukman	60286d0916	A simple (spilling) register allocator. ... llvm-svn: 4828	2002-11-22 22:44:32 +00:00