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add tests for icmp vector folds 

llvm-svn: 276476
This commit is contained in:
Sanjay Patel 2016-07-22 21:28:20 +00:00
parent 97e61dcc2d
commit cbc4377af1
1 changed files with 24 additions and 0 deletions
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24
llvm/test/Transforms/InstCombine/icmp.ll
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@ -1186,6 +1186,18 @@ define i1 @icmp_mul_neq0(i32 %x) {
ret i1 %cmp
}
; FIXME: Vectors should fold the same way.
define <2 x i1> @icmp_mul_neq0_vec(<2 x i32> %x) {
; CHECK-LABEL: @icmp_mul_neq0_vec(
; CHECK-NEXT: [[MUL:%.*]] = mul nsw <2 x i32> %x, <i32 -12, i32 -12>
; CHECK-NEXT: [[CMP:%.*]] = icmp ne <2 x i32> [[MUL]], zeroinitializer
; CHECK-NEXT: ret <2 x i1> [[CMP]]
;
%mul = mul nsw <2 x i32> %x, <i32 -12, i32 -12>
%cmp = icmp ne <2 x i32> %mul, zeroinitializer
ret <2 x i1> %cmp
}
define i1 @icmp_mul_eq0(i32 %x) {
; CHECK-LABEL: @icmp_mul_eq0(
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 %x, 0
@ -2005,6 +2017,18 @@ define i1 @cmp_inverse_mask_bits_set_eq(i32 %x) {
ret i1 %cmp
}
; FIXME: Vectors should fold the same way.
define <2 x i1> @cmp_inverse_mask_bits_set_eq_vec(<2 x i32> %x) {
; CHECK-LABEL: @cmp_inverse_mask_bits_set_eq_vec(
; CHECK-NEXT: [[OR:%.*]] = or <2 x i32> %x, <i32 42, i32 42>
; CHECK-NEXT: [[CMP:%.*]] = icmp eq <2 x i32> [[OR]], <i32 -1, i32 -1>
; CHECK-NEXT: ret <2 x i1> [[CMP]]
;
%or = or <2 x i32> %x, <i32 42, i32 42>
%cmp = icmp eq <2 x i32> %or, <i32 -1, i32 -1>
ret <2 x i1> %cmp
}
define i1 @cmp_inverse_mask_bits_set_ne(i32 %x) {
; CHECK-LABEL: @cmp_inverse_mask_bits_set_ne(
; CHECK-NEXT: [[TMP1:%.*]] = and i32 %x, -43