File: 2008-01-21-MismatchedCastAndCompare.ll

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llvm-toolchain-6.0 1:6.0-1~bpo9+1
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; RUN: opt < %s -instcombine -S | FileCheck %s
; PR1940

define i1 @test1(i8 %A, i8 %B) {
        %a = zext i8 %A to i32
        %b = zext i8 %B to i32
        %c = icmp sgt i32 %a, %b
        ret i1 %c
; CHECK: %c = icmp ugt i8 %A, %B
; CHECK: ret i1 %c
}

define i1 @test2(i8 %A, i8 %B) {
        %a = sext i8 %A to i32
        %b = sext i8 %B to i32
        %c = icmp ugt i32 %a, %b
        ret i1 %c
; CHECK: %c = icmp ugt i8 %A, %B
; CHECK: ret i1 %c
}