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; This test ensures that "strength reduction" of conditional expressions are
; working. Basically this boils down to converting setlt,gt,le,ge instructions
; into equivalent setne,eq instructions.
;
; RUN: opt < %s -instcombine -S | \
; RUN: grep -v {icmp eq} | grep -v {icmp ne} | not grep icmp
; END.
define i1 @test1(i32 %A) {
; setne %A, 0
%B = icmp uge i32 %A, 1 ; <i1> [#uses=1]
ret i1 %B
}
define i1 @test2(i32 %A) {
; setne %A, 0
%B = icmp ugt i32 %A, 0 ; <i1> [#uses=1]
ret i1 %B
}
define i1 @test3(i8 %A) {
; setne %A, -128
%B = icmp sge i8 %A, -127 ; <i1> [#uses=1]
ret i1 %B
}
define i1 @test4(i8 %A) {
; setne %A, 127
%B = icmp sle i8 %A, 126 ; <i1> [#uses=1]
ret i1 %B
}
define i1 @test5(i8 %A) {
; setne %A, 127
%B = icmp slt i8 %A, 127 ; <i1> [#uses=1]
ret i1 %B
}
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