1; This test ensures that "strength reduction" of conditional expressions are
2; working.  Basically this boils down to converting setlt,gt,le,ge instructions
3; into equivalent setne,eq instructions.
4;
5; RUN: opt < %s -instcombine -S | \
6; RUN:    grep -v "icmp eq" | grep -v "icmp ne" | not grep icmp
7; END.
8
9define i1 @test1(i32 %A) {
10        ; setne %A, 0
11        %B = icmp uge i32 %A, 1         ; <i1> [#uses=1]
12        ret i1 %B
13}
14
15define i1 @test2(i32 %A) {
16       ; setne %A, 0
17        %B = icmp ugt i32 %A, 0         ; <i1> [#uses=1]
18        ret i1 %B
19}
20
21define i1 @test3(i8 %A) {
22        ; setne %A, -128
23        %B = icmp sge i8 %A, -127               ; <i1> [#uses=1]
24        ret i1 %B
25}
26
27define i1 @test4(i8 %A) {
28        ; setne %A, 127
29        %B = icmp sle i8 %A, 126                ; <i1> [#uses=1]
30        ret i1 %B
31}
32
33define i1 @test5(i8 %A) {
34        ; setne %A, 127
35        %B = icmp slt i8 %A, 127                ; <i1> [#uses=1]
36        ret i1 %B
37}
38