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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33569 91177308-0d34-0410-b5e6-96231b3b80d8
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Evan Cheng 2007-01-27 02:33:22 +00:00
parent d85ac4d079
commit 198529aaf1
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4
lib/Target/ARM/README-Thumb.txt
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@ -15,3 +15,7 @@
* Make better use of high registers r8, r10, r11, r12 (ip). Some variants of add
and cmp instructions can use high registers. Also, we can use them as
temporaries to spill values into.
* If we know function size is less than (1 << 16) * 2 bytes, we can use 16-bit
jumptable entries (e.g. (L1 - L2) >> 1). Or even smaller entries if the
function is even smaller. This also applies to ARM.