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llvm-mirror/test/Transforms/InstCombine/2012-02-28-ICmp.ll

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2012-02-29 02:53:13 +01:00
; RUN: opt < %s -instcombine -S | FileCheck %s
; <rdar://problem/10803154>
; There should be no transformation.
; CHECK: %a = trunc i32 %x to i8
; CHECK: %b = icmp ne i8 %a, 0
; CHECK: %c = and i32 %x, 16711680
; CHECK: %d = icmp ne i32 %c, 0
; CHECK: %e = and i1 %b, %d
; CHECK: ret i1 %e
define i1 @f1(i32 %x) {
%a = trunc i32 %x to i8
%b = icmp ne i8 %a, 0
%c = and i32 %x, 16711680
%d = icmp ne i32 %c, 0
%e = and i1 %b, %d
ret i1 %e
}