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LLVM backend for 6502
us to load and store vectors directly at a pointer (offset of zero) by using r0 as the base register. This also requires some asm printer work to satisfy the darwin assembler. For void %foo(<4 x float> * %a) { entry: %tmp1 = load <4 x float> * %a; %tmp2 = add <4 x float> %tmp1, %tmp1 store <4 x float> %tmp2, <4 x float> *%a ret void } We now produce: _foo: lvx v0, 0, r3 vaddfp v0, v0, v0 stvx v0, 0, r3 blr Instead of: _foo: li r2, 0 lvx v0, r2, r3 vaddfp v0, v0, v0 stvx v0, r2, r3 blr git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24872 91177308-0d34-0410-b5e6-96231b3b80d8 |
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