llvm.org GIT mirror llvm / 6c3a21a
Whoops, forgot to check this in. :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10334 91177308-0d34-0410-b5e6-96231b3b80d8 Chris Lattner 15 years ago
1 changed file(s) with 22 addition(s) and 0 deletion(s). Raw diff Collapse all Expand all
0 ; This is a more aggressive form of accumulator recursion insertion, which
1 ; requires noticing that X doesn't change as we perform the tailcall. Thanks
2 ; go out to the anonymous users of the demo script for "suggesting"
3 ; optimizations that should be done. :)
4
5 ; RUN: llvm-as < %s | opt -tailcallelim | llvm-dis | not grep call
6
7 int %mul(int %x, int %y) {
8 entry:
9 %tmp.1 = seteq int %y, 0
10 br bool %tmp.1, label %return, label %endif
11
12 endif:
13 %tmp.8 = add int %y, -1
14 %tmp.5 = call int %mul( int %x, int %tmp.8 )
15 %tmp.9 = add int %tmp.5, %x
16 ret int %tmp.9
17
18 return:
19 ret int %x
20 }
21