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[InstCombine] Regenerate + add icmp with undef tests 

Better test coverage for PR41125 and D59363

llvm-svn: 356448
This commit is contained in:
Simon Pilgrim 2019-03-19 11:44:22 +00:00
parent b274d3d799
commit 9497b2b2f7
1 changed files with 23 additions and 2 deletions
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25
llvm/test/Transforms/InstCombine/icmp.ll
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@ -67,13 +67,34 @@ define i32 @test4(i32 %X) {
}
; PR4837
define <2 x i1> @test5(<2 x i64> %x) {
; CHECK-LABEL: @test5(
define <2 x i1> @test5_eq(<2 x i64> %x) {
; CHECK-LABEL: @test5_eq(
; CHECK-NEXT: ret <2 x i1> <i1 true, i1 true>
;
%V = icmp eq <2 x i64> %x, undef
ret <2 x i1> %V
}
define <2 x i1> @test5_ne(<2 x i64> %x) {
; CHECK-LABEL: @test5_ne(
; CHECK-NEXT: ret <2 x i1> zeroinitializer
;
%V = icmp ne <2 x i64> %x, undef
ret <2 x i1> %V
}
define <2 x i1> @test5_ugt(<2 x i64> %x) {
; CHECK-LABEL: @test5_ugt(
; CHECK-NEXT: ret <2 x i1> zeroinitializer
;
%V = icmp ugt <2 x i64> %x, undef
ret <2 x i1> %V
}
define <2 x i1> @test5_zero() {
; CHECK-LABEL: @test5_zero(
; CHECK-NEXT: ret <2 x i1> undef
;
%V = icmp eq <2 x i64> zeroinitializer, undef
ret <2 x i1> %V
}
define i32 @test6(i32 %a, i32 %b) {
; CHECK-LABEL: @test6(