llvm-mirror

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History

Chris Lattner 5a865c8598 This break is bogus and I have no idea why it was there. Basically it prevents

memoizing code when IV's are used by phinodes outside of loops.  In a simple
example, we were getting this code before (note that r6 and r7 are isomorphic
IV's):

        li r6, 0
        or r7, r6, r6
LBB_test_3:     ; no_exit
        lwz r2, 0(r3)
        cmpw cr0, r2, r5
        or r2, r7, r7
        beq cr0, LBB_test_5     ; loopexit
LBB_test_4:     ; endif
        addi r2, r7, 1
        addi r7, r7, 1
        addi r3, r3, 4
        addi r6, r6, 1
        cmpw cr0, r6, r4
        blt cr0, LBB_test_3     ; no_exit

Now we get:

        li r6, 0
LBB_test_3:     ; no_exit
        or r2, r6, r6
        lwz r6, 0(r3)
        cmpw cr0, r6, r5
        beq cr0, LBB_test_6     ; loopexit
LBB_test_4:     ; endif
        addi r3, r3, 4
        addi r6, r2, 1
        cmpw cr0, r6, r4
        blt cr0, LBB_test_3     ; no_exit

this was noticed in em3d.

llvm-svn: 23602

2005-10-03 00:37:33 +00:00

Analysis

wrap a long line

2005-09-28 22:30:58 +00:00

AsmParser

Implement PR614:

2005-08-27 18:50:39 +00:00

Bytecode

speed up Archive::isBytecodeArchive in the case when the archive doesn't have

2005-09-23 06:22:58 +00:00

CodeGen

Fix a problem where the legalizer would run out of stack space on extremely