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; RUN: opt < %s -instcombine -S | \
; RUN: FileCheck %s
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
; Should be optimized to one and.
define i1 @test1(i32 %a, i32 %b) {
; CHECK-LABEL: @test1(
; CHECK-NEXT: %1 = xor i32 %a, %b
; CHECK-NEXT: %2 = and i32 %1, 65280
; CHECK-NEXT: %tmp = icmp ne i32 %2, 0
; CHECK-NEXT: ret i1 %tmp
%tmp1 = and i32 %a, 65280 ; <i32> [#uses=1]
%tmp3 = and i32 %b, 65280 ; <i32> [#uses=1]
%tmp = icmp ne i32 %tmp1, %tmp3 ; <i1> [#uses=1]
ret i1 %tmp
}
define zeroext i1 @test2(i64 %A) {
; CHECK-LABEL: @test2(
; CHECK-NEXT: %[[trunc:.*]] = trunc i64 %A to i8
; CHECK-NEXT: %[[icmp:.*]] = icmp sgt i8 %[[trunc]], -1
; CHECK-NEXT: ret i1 %[[icmp]]
%and = and i64 %A, 128
%cmp = icmp eq i64 %and, 0
ret i1 %cmp
}
define zeroext i1 @test3(i64 %A) {
; CHECK-LABEL: @test3(
; CHECK-NEXT: %[[trunc:.*]] = trunc i64 %A to i8
; CHECK-NEXT: %[[icmp:.*]] = icmp slt i8 %[[trunc]], 0
; CHECK-NEXT: ret i1 %[[icmp]]
%and = and i64 %A, 128
%cmp = icmp ne i64 %and, 0
ret i1 %cmp
}
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