llvm/test/Transforms/InstSimplify/bswap.ll
Sanjay Patel 89e202e5fa [InstSimplify] regenerate checks using a script
I didn't notice any significant changes in the actual checks here;
all of these tests already used FileCheck, so a script can batch
update them in one shot.

This commit is just to show the value of automating this process: 
We have uniform formatting as opposed to a mish-mash of check
structure that changes based on individual prefs and the current
fashion. This makes it simpler to update when we find a bug or
make an enhancement.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@264457 91177308-0d34-0410-b5e6-96231b3b80d8
2016-03-25 20:12:25 +00:00

47 lines
969 B
LLVM

; 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
}