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[ConstProp] add tests for cmp with null and constexpr; NFC

This commit is contained in:
Sanjay Patel 2021-03-07 14:02:10 -05:00
parent f79bab3fd7
commit 898b40645d
1 changed files with 34 additions and 0 deletions
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34
llvm/test/Transforms/InstSimplify/ConstProp/icmp-null.ll Normal file
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -instsimplify -S -verify | FileCheck %s
define i1 @ule_null_constexpr(i8* %x) {
; CHECK-LABEL: @ule_null_constexpr(
; CHECK-NEXT: ret i1 icmp uge (i8 (...)* bitcast (i1 (i8*)* @ule_null_constexpr to i8 (...)*), i8 (...)* null)
;
%cmp = icmp ule i8 (...)* null, bitcast (i1 (i8*)* @ule_null_constexpr to i8 (...)*)
ret i1 %cmp
}
define i1 @ugt_null_constexpr(i8* %x) {
; CHECK-LABEL: @ugt_null_constexpr(
; CHECK-NEXT: ret i1 icmp ult (i8 (...)* bitcast (i1 (i8*)* @ugt_null_constexpr to i8 (...)*), i8 (...)* null)
;
%cmp = icmp ugt i8 (...)* null, bitcast (i1 (i8*)* @ugt_null_constexpr to i8 (...)*)
ret i1 %cmp
}
define i1 @uge_constexpr_null(i8* %x) {
; CHECK-LABEL: @uge_constexpr_null(
; CHECK-NEXT: ret i1 icmp uge (i8 (...)* bitcast (i1 (i8*)* @ugt_null_constexpr to i8 (...)*), i8 (...)* null)
;
%cmp = icmp uge i8 (...)* bitcast (i1 (i8*)* @ugt_null_constexpr to i8 (...)*), null
ret i1 %cmp
}
define i1 @ult_constexpr_null(i8* %x) {
; CHECK-LABEL: @ult_constexpr_null(
; CHECK-NEXT: ret i1 icmp ult (i8 (...)* bitcast (i1 (i8*)* @ugt_null_constexpr to i8 (...)*), i8 (...)* null)
;
%cmp = icmp ult i8 (...)* bitcast (i1 (i8*)* @ugt_null_constexpr to i8 (...)*), null
ret i1 %cmp
}