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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55348 91177308-0d34-0410-b5e6-96231b3b80d8
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Evan Cheng 2008-08-26 01:13:44 +00:00
parent 71669e51e5
commit b09c25ebf0
1 changed files with 0 additions and 21 deletions
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21
lib/Target/X86/README.txt
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@ -379,27 +379,6 @@ require a copy to be inserted (in X86InstrInfo::convertToThreeAddress).
//===---------------------------------------------------------------------===//
Another instruction selector deficiency:
void %bar() {
%tmp = load int (int)** %foo
%tmp = tail call int %tmp( int 3 )
ret void
}
_bar:
subl $12, %esp
movl L_foo$non_lazy_ptr, %eax
movl (%eax), %eax
call *%eax
addl $12, %esp
ret
The current isel scheme will not allow the load to be folded in the call since
the load's chain result is read by the callseq_start.
//===---------------------------------------------------------------------===//
For this:
int test(int a)