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[ConstantFold] Add some tests for binops with constants and undefs. 

Precommit tests for D70169.
This commit is contained in:
Florian Hahn 2019-11-13 10:20:59 +00:00
parent a516fbac52
commit 28c183859a
1 changed files with 50 additions and 0 deletions
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50
llvm/test/Analysis/ConstantFolding/binop-identity-undef.ll Normal file
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -constprop -S %s | FileCheck %s
define i32 @and1() {
; CHECK-LABEL: @and1(
; CHECK-NEXT: ret i32 0
;
%r = and i32 undef, -1
ret i32 %r
}
define i32 @and2() {
; CHECK-LABEL: @and2(
; CHECK-NEXT: ret i32 0
;
%r = and i32 -1, undef
ret i32 %r
}
define i32 @and3_no_identity() {
; CHECK-LABEL: @and3_no_identity(
; CHECK-NEXT: ret i32 0
;
%r = and i32 10, undef
ret i32 %r
}
define i32 @or1() {
; CHECK-LABEL: @or1(
; CHECK-NEXT: ret i32 -1
;
%r = or i32 0, undef
ret i32 %r
}
define i32 @or2() {
; CHECK-LABEL: @or2(
; CHECK-NEXT: ret i32 -1
;
%r = or i32 undef, 0
ret i32 %r
}
define i32 @or3_no_identity() {
; CHECK-LABEL: @or3_no_identity(
; CHECK-NEXT: ret i32 -1
;
%r = or i32 undef, 10
ret i32 %r
}