llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-01-24 08:33:39 +00:00

History

Chris Lattner 1ebd89eb6b Pass the type of the store access, not the type of the store, into the

target hook.  This allows us to codegen a loop as:

LBB1_1: @cond_next
        mov r2, #0
        str r2, [r0, +r3, lsl #2]
        add r3, r3, #1
        cmn r3, #1
        bne LBB1_1      @cond_next

instead of:

LBB1_1: @cond_next
        mov r2, #0
        str r2, [r0], #+4
        add r3, r3, #1
        cmn r3, #1
        bne LBB1_1      @cond_next

This looks the same, but has one fewer induction variable (and therefore,
one fewer register) live in the loop.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35592 91177308-0d34-0410-b5e6-96231b3b80d8

2007-04-02 06:34:44 +00:00

Analysis

Treat xor of signbit like an add.

2007-04-02 05:41:38 +00:00