Chris Lattner e40e2d4ec3 Refactor this code a bit and make it more general. This now compiles: ...

struct S { unsigned int i : 6, j : 11, k : 15; } b;
void plus2 (unsigned int x) { b.j += x; }

To:

_plus2:
        lis r2, ha16(L_b$non_lazy_ptr)
        lwz r2, lo16(L_b$non_lazy_ptr)(r2)
        lwz r4, 0(r2)
        slwi r3, r3, 6
        add r3, r4, r3
        rlwimi r3, r4, 0, 26, 14
        stw r3, 0(r2)
        blr


instead of:

_plus2:
        lis r2, ha16(L_b$non_lazy_ptr)
        lwz r2, lo16(L_b$non_lazy_ptr)(r2)
        lwz r4, 0(r2)
        rlwinm r5, r4, 26, 21, 31
        add r3, r5, r3
        rlwimi r4, r3, 6, 15, 25
        stw r4, 0(r2)
        blr

by eliminating an 'and'.

I'm pretty sure this is as small as we can go :)

llvm-svn: 23386

2005-09-18 07:22:02 +00:00

..

ADCE.cpp

preserve calling conventions when hacking on code

2005-05-14 12:25:32 +00:00

BasicBlockPlacement.cpp

Remove trailing whitespace

2005-04-21 23:48:37 +00:00

CondPropagate.cpp

Fix a fixme in CondPropagate.cpp by moving a PhiNode optimization into

2005-08-04 23:24:19 +00:00

ConstantProp.cpp

Remove trailing whitespace

2005-04-21 23:48:37 +00:00

CorrelatedExprs.cpp

Remove trailing whitespace

2005-04-21 23:48:37 +00:00

DCE.cpp

clean up and modernize this pass.

2005-05-08 18:45:26 +00:00

DeadStoreElimination.cpp

Remove trailing whitespace

2005-04-21 23:48:37 +00:00

GCSE.cpp

Remove trailing whitespace

2005-04-21 23:48:37 +00:00

IndVarSimplify.cpp

Allow indvar simplify to canonicalize ANY affine IV, not just affine IVs with

2005-08-10 01:12:06 +00:00

InstructionCombining.cpp

Refactor this code a bit and make it more general. This now compiles:

2005-09-18 07:22:02 +00:00

LICM.cpp

prevent va_arg from being hoisted from a loop

2005-06-20 13:36:33 +00:00

LoopSimplify.cpp

remove dead code. The exit block list is computed on demand, thus does not

2005-08-13 01:30:36 +00:00

LoopStrengthReduce.cpp

Fix an issue where LSR would miss rewriting a use of an IV expression by a PHI node that is not the original PHI.

2005-09-13 02:09:55 +00:00

LoopUnroll.cpp

Eliminate tabs and trailing spaces

2005-04-23 21:38:35 +00:00

LoopUnswitch.cpp

Remove trailing whitespace

2005-04-21 23:48:37 +00:00

LowerAllocations.cpp

Preserve tail marker

2005-05-06 06:48:21 +00:00

LowerConstantExprs.cpp

Remove trailing whitespace

2005-04-21 23:48:37 +00:00

LowerGC.cpp

Remove trailing whitespace

2005-04-21 23:48:37 +00:00

LowerInvoke.cpp

The correct fix for PR612, which also fixes

2005-08-03 18:51:44 +00:00

LowerPacked.cpp

Remove trailing whitespace

2005-04-21 23:48:37 +00:00

LowerSelect.cpp

Remove trailing whitespace

2005-04-21 23:48:37 +00:00

LowerSwitch.cpp

Remove trailing whitespace

2005-04-21 23:48:37 +00:00

Makefile

Change Library Names Not To Conflict With Others When Installed

2004-10-27 23:18:45 +00:00

Mem2Reg.cpp

Remove trailing whitespace

2005-04-21 23:48:37 +00:00

PRE.cpp

Remove trailing whitespace

2005-04-21 23:48:37 +00:00

Reassociate.cpp

Fix a problem that Dan Berlin noticed, where reassociation would not succeed

2005-09-02 07:07:58 +00:00

ScalarReplAggregates.cpp

Remove trailing whitespace

2005-04-21 23:48:37 +00:00

SCCP.cpp

Eliminate tabs and trailing spaces

2005-04-23 21:38:35 +00:00

SimplifyCFG.cpp

Remove trailing whitespace

2005-04-21 23:48:37 +00:00

TailDuplication.cpp

Remove trailing whitespace

2005-04-21 23:48:37 +00:00

TailRecursionElimination.cpp

Use the new 'moveBefore' method to simplify some code. Really, which is

2005-08-08 19:11:57 +00:00