| commit | 384b8be31a6ae2813867cea7fcccc464b788b812 | |
| author | Linus Torvalds <torvalds@ppc970.osdl.org> | |
| Thu, 25 Nov 2004 17:37:34 +0000 (25 10:37 -0700) | ||
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | |
| Fri, 8 Apr 2005 04:04:49 +0000 (7 21:04 -0700) | ||
| tree | 99e95fc21f76ebf3899819a1a8c91720a4309e85 | treesnapshot (tar.gz zip) |
| parent | 0cde10b1951b7175edab953b3325f8c0c990eea1 | commitdiff |
Move instruction simplification to new file "simplify.c".
Also, allow marking a pseudo unused by setting it to VOID,
which just disables further renaming of that use. This is
needed to make phi-source instructions (that can be shared
among multiple phi-nodes thanks to CSE) be collectable.
We used to just mark the phi source dead, but that was
wrong, since _another_ phi node might be using it.
Also, allow marking a pseudo unused by setting it to VOID,
which just disables further renaming of that use. This is
needed to make phi-source instructions (that can be shared
among multiple phi-nodes thanks to CSE) be collectable.
We used to just mark the phi source dead, but that was
wrong, since _another_ phi node might be using it.
| Makefile | diffblobblamehistory | |
| cse.c | diffblobblamehistory | |
| flow.c | diffblobblamehistory | |
| flow.h | diffblobblamehistory | |
| simplify.c | [new file with mode: 0644] | blob |