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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26299 91177308-0d34-0410-b5e6-96231b3b80d8
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Chris Lattner
2006-02-21 18:29:44 +00:00
parent 2deb87f201
commit a1532bc283
1 changed files with 11 additions and 0 deletions
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11
lib/Target/README.txt
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@@ -68,3 +68,14 @@ int %test(int %A) {
This sort of thing occurs in the alloca lowering code and other places that This sort of thing occurs in the alloca lowering code and other places that
are generating alignment of an already aligned value. are generating alignment of an already aligned value.
//===---------------------------------------------------------------------===//
Turn this into a signed shift right in instcombine:
int f(unsigned x) {
return x >> 31 ? -1 : 0;
}
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25600
http://gcc.gnu.org/ml/gcc-patches/2006-02/msg01492.html