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Imported Upstream version 5.18.0.167
Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a
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; RUN: opt < %s -S -instsimplify | FileCheck %s
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declare i32 @llvm.bitreverse.i32(i32)
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; CHECK-LABEL: @test1(
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; CHECK: ret i1 false
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define i1 @test1(i32 %arg) {
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%a = or i32 %arg, 1
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%b = call i32 @llvm.bitreverse.i32(i32 %a)
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%res = icmp eq i32 %b, 0
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ret i1 %res
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}
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; CHECK-LABEL: @test2(
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; CHECK: ret i1 false
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define i1 @test2(i32 %arg) {
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%a = or i32 %arg, 1024
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%b = call i32 @llvm.bitreverse.i32(i32 %a)
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%res = icmp eq i32 %b, 0
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ret i1 %res
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}
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; CHECK-LABEL: @test3(
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; CHECK: ret i1 false
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define i1 @test3(i32 %arg) {
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%a = and i32 %arg, 1
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%b = call i32 @llvm.bitreverse.i32(i32 %a)
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%and = and i32 %b, 1
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%res = icmp eq i32 %and, 1
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ret i1 %res
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}
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