Imported Upstream version 5.18.0.205

Former-commit-id: 7f59f7e792705db773f1caecdaa823092f4e2927
This commit is contained in:
Xamarin Public Jenkins (auto-signing)
2018-11-16 08:20:38 +00:00
parent 5cd5df71cc
commit 8e12397d70
28486 changed files with 3867013 additions and 66 deletions

View File

@ -0,0 +1,31 @@
; RUN: opt < %s -S -instsimplify | FileCheck %s
declare i32 @llvm.bitreverse.i32(i32)
; CHECK-LABEL: @test1(
; CHECK: ret i1 false
define i1 @test1(i32 %arg) {
%a = or i32 %arg, 1
%b = call i32 @llvm.bitreverse.i32(i32 %a)
%res = icmp eq i32 %b, 0
ret i1 %res
}
; CHECK-LABEL: @test2(
; CHECK: ret i1 false
define i1 @test2(i32 %arg) {
%a = or i32 %arg, 1024
%b = call i32 @llvm.bitreverse.i32(i32 %a)
%res = icmp eq i32 %b, 0
ret i1 %res
}
; CHECK-LABEL: @test3(
; CHECK: ret i1 false
define i1 @test3(i32 %arg) {
%a = and i32 %arg, 1
%b = call i32 @llvm.bitreverse.i32(i32 %a)
%and = and i32 %b, 1
%res = icmp eq i32 %and, 1
ret i1 %res
}