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Remove outdated README entry.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125659 91177308-0d34-0410-b5e6-96231b3b80d8
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Eli Friedman 2011-02-16 07:18:18 +00:00
parent c5cb996e9c
commit fd51e95171
1 changed files with 0 additions and 16 deletions
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16
lib/Target/README.txt
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@ -1840,23 +1840,7 @@ something like the following, which eliminates a branch:
ret
.LBB0_2:
jmp foo # TAILCALL
//===---------------------------------------------------------------------===//
Given a branch where the two target blocks are identical ("ret i32 %b" in
both), simplifycfg will simplify them away. But not so for a switch statement:
define i32 @f(i32 %a, i32 %b) nounwind readnone {
entry:
switch i32 %a, label %bb3 [
i32 4, label %bb
i32 6, label %bb
]
bb: ; preds = %entry, %entry
ret i32 %b
bb3: ; preds = %entry
ret i32 %b
}
//===---------------------------------------------------------------------===//
We compile this: