bswap.ll
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; NOTE: Assertions have been autogenerated by update_test_checks.py
; RUN: opt < %s -S -instsimplify | FileCheck %s
declare i16 @llvm.bswap.i16(i16)
define i1 @test1(i16 %arg) {
; CHECK-LABEL: @test1(
; CHECK: ret i1 false
;
%a = or i16 %arg, 1
%b = call i16 @llvm.bswap.i16(i16 %a)
%res = icmp eq i16 %b, 0
ret i1 %res
}
define i1 @test2(i16 %arg) {
; CHECK-LABEL: @test2(
; CHECK: ret i1 false
;
%a = or i16 %arg, 1024
%b = call i16 @llvm.bswap.i16(i16 %a)
%res = icmp eq i16 %b, 0
ret i1 %res
}
define i1 @test3(i16 %arg) {
; CHECK-LABEL: @test3(
; CHECK: ret i1 false
;
%a = and i16 %arg, 1
%b = call i16 @llvm.bswap.i16(i16 %a)
%and = and i16 %b, 1
%res = icmp eq i16 %and, 1
ret i1 %res
}
define i1 @test4(i16 %arg) {
; CHECK-LABEL: @test4(
; CHECK: ret i1 false
;
%a = and i16 %arg, 511
%b = call i16 @llvm.bswap.i16(i16 %a)
%and = and i16 %b, 256
%res = icmp eq i16 %and, 1
ret i1 %res
}