blob: ba679892b6ff753e092d7ba6d7ee376c67e1b999 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
|
; The induction variable canonicalization pass shouldn't leave dead
; instructions laying around!
;
; RUN: llvm-upgrade < %s | llvm-as | opt -indvars | llvm-dis | \
; RUN: not grep {#uses=0}
int %mul(int %x, int %y) {
entry:
br label %tailrecurse
tailrecurse: ; preds = %entry, %endif
%accumulator.tr = phi int [ %x, %entry ], [ %tmp.9, %endif ] ; <int> [#uses=2]
%y.tr = phi int [ %y, %entry ], [ %tmp.8, %endif ] ; <int> [#uses=2]
%tmp.1 = seteq int %y.tr, 0 ; <bool> [#uses=1]
br bool %tmp.1, label %return, label %endif
endif: ; preds = %tailrecurse
%tmp.8 = add int %y.tr, -1 ; <int> [#uses=1]
%tmp.9 = add int %accumulator.tr, %x ; <int> [#uses=1]
br label %tailrecurse
return: ; preds = %tailrecurse
ret int %accumulator.tr
}
|
