RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-11-23 19:23:23 +01:00
Code Issues Projects Releases Wiki Activity

[InstSimplify] add tests for icmp with partial undef constant; NFC

Browse Source
This commit is contained in:
Sanjay Patel 2020-07-28 11:13:05 -04:00
parent 0769122e0b
commit d72f79b2c4
1 changed files with 62 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

62
test/Transforms/InstSimplify/icmp-constant.ll
View File

@ -19,6 +19,15 @@ define <2 x i1> @tautological_ule_vec(<2 x i8> %x) {
ret <2 x i1> %cmp
}
define <2 x i1> @tautological_ule_vec_partial_undef(<2 x i8> %x) {
; CHECK-LABEL: @tautological_ule_vec_partial_undef(
; CHECK-NEXT: [[CMP:%.*]] = icmp ule <2 x i8> [[X:%.*]], <i8 -1, i8 undef>
; CHECK-NEXT: ret <2 x i1> [[CMP]]
;
%cmp = icmp ule <2 x i8> %x, <i8 255, i8 undef>
ret <2 x i1> %cmp
}
define i1 @tautological_ugt(i8 %x) {
; CHECK-LABEL: @tautological_ugt(
; CHECK-NEXT: ret i1 false
@ -35,6 +44,15 @@ define <2 x i1> @tautological_ugt_vec(<2 x i8> %x) {
ret <2 x i1> %cmp
}
define <2 x i1> @tautological_ugt_vec_partial_undef(<2 x i8> %x) {
; CHECK-LABEL: @tautological_ugt_vec_partial_undef(
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt <2 x i8> [[X:%.*]], <i8 undef, i8 -1>
; CHECK-NEXT: ret <2 x i1> [[CMP]]
;
%cmp = icmp ugt <2 x i8> %x, <i8 undef, i8 255>
ret <2 x i1> %cmp
}
; 'urem x, C2' produces [0, C2)
define i1 @urem3(i32 %X) {
; CHECK-LABEL: @urem3(
@ -54,6 +72,17 @@ define <2 x i1> @urem3_vec(<2 x i32> %X) {
ret <2 x i1> %B
}
define <2 x i1> @urem3_vec_partial_undef(<2 x i32> %X) {
; CHECK-LABEL: @urem3_vec_partial_undef(
; CHECK-NEXT: [[A:%.*]] = urem <2 x i32> [[X:%.*]], <i32 10, i32 10>
; CHECK-NEXT: [[B:%.*]] = icmp ult <2 x i32> [[A]], <i32 undef, i32 15>
; CHECK-NEXT: ret <2 x i1> [[B]]
;
%A = urem <2 x i32> %X, <i32 10, i32 10>
%B = icmp ult <2 x i32> %A, <i32 undef, i32 15>
ret <2 x i1> %B
}
;'srem x, C2' produces (-|C2|, |C2|)
define i1 @srem1(i32 %X) {
; CHECK-LABEL: @srem1(
@ -73,6 +102,17 @@ define <2 x i1> @srem1_vec(<2 x i32> %X) {
ret <2 x i1> %B
}
define <2 x i1> @srem1_vec_partial_undef(<2 x i32> %X) {
; CHECK-LABEL: @srem1_vec_partial_undef(
; CHECK-NEXT: [[A:%.*]] = srem <2 x i32> [[X:%.*]], <i32 -5, i32 -5>
; CHECK-NEXT: [[B:%.*]] = icmp sgt <2 x i32> [[A]], <i32 5, i32 undef>
; CHECK-NEXT: ret <2 x i1> [[B]]
;
%A = srem <2 x i32> %X, <i32 -5, i32 -5>
%B = icmp sgt <2 x i32> %A, <i32 5, i32 undef>
ret <2 x i1> %B
}
;'udiv C2, x' produces [0, C2]
define i1 @udiv5(i32 %X) {
; CHECK-LABEL: @udiv5(
@ -169,6 +209,17 @@ define <2 x i1> @shl5_vec(<2 x i32> %X) {
ret <2 x i1> %cmp
}
define <2 x i1> @shl5_vec_partial_undef(<2 x i32> %X) {
; CHECK-LABEL: @shl5_vec_partial_undef(
; CHECK-NEXT: [[SUB:%.*]] = shl nuw <2 x i32> <i32 4, i32 4>, [[X:%.*]]
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt <2 x i32> [[SUB]], <i32 undef, i32 3>
; CHECK-NEXT: ret <2 x i1> [[CMP]]
;
%sub = shl nuw <2 x i32> <i32 4, i32 4>, %X
%cmp = icmp ugt <2 x i32> %sub, <i32 undef, i32 3>
ret <2 x i1> %cmp
}
; 'shl nsw C2, x' produces [C2 << CLO(C2)-1, C2]
define i1 @shl2(i32 %X) {
; CHECK-LABEL: @shl2(
@ -378,6 +429,17 @@ define <2 x i1> @or1_vec(<2 x i32> %X) {
ret <2 x i1> %B
}
define <2 x i1> @or1_vec_partial_undef(<2 x i32> %X) {
; CHECK-LABEL: @or1_vec_partial_undef(
; CHECK-NEXT: [[A:%.*]] = or <2 x i32> [[X:%.*]], <i32 62, i32 62>
; CHECK-NEXT: [[B:%.*]] = icmp ult <2 x i32> [[A]], <i32 undef, i32 50>
; CHECK-NEXT: ret <2 x i1> [[B]]
;
%A = or <2 x i32> %X, <i32 62, i32 62>
%B = icmp ult <2 x i32> %A, <i32 undef, i32 50>
ret <2 x i1> %B
}
; Single bit OR.
define i1 @or2_true(i8 %x) {
; CHECK-LABEL: @or2_true(