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Remove a couple of already-implemented notes.

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llvm-svn: 76631
This commit is contained in:
Eli Friedman 2009-07-21 20:05:43 +00:00
parent 64b75885a0
commit a62553ec99
1 changed files with 0 additions and 12 deletions
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12
lib/Target/README.txt
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@ -197,13 +197,6 @@ _bar: addic r3,r3,-1
//===---------------------------------------------------------------------===//
Legalize should lower ctlz like this:
ctlz(x) = popcnt((x-1) & ~x)
on targets that have popcnt but not ctlz. itanium, what else?
//===---------------------------------------------------------------------===//
quantum_sigma_x in 462.libquantum contains the following loop:
for(i=0; i<reg->size; i++)
@ -335,11 +328,6 @@ when it is declared U32.
//===---------------------------------------------------------------------===//
Promote for i32 bswap can use i64 bswap + shr. Useful on targets with 64-bit
regs and bswap, like itanium.
//===---------------------------------------------------------------------===//
LSR should know what GPR types a target has. This code:
volatile short X, Y; // globals