RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-10-20 03:23:01 +02:00
Code Issues Projects Releases Wiki Activity

[InstSimplify] add tests for m_SignMask with undef vector elements; NFC

Browse Source 
llvm-svn: 325622
This commit is contained in:
Sanjay Patel 2018-02-20 20:53:35 +00:00
parent b11fbd7d6f
commit 23f17bd87e
1 changed files with 28 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
test/Transforms/InstSimplify/AndOrXor.ll
View File

@ -5,24 +5,50 @@
define <2 x i32> @add_nsw_signbit(<2 x i32> %x) {
; CHECK-LABEL: @add_nsw_signbit(
; CHECK-NEXT: ret <2 x i32> %x
; CHECK-NEXT: ret <2 x i32> [[X:%.*]]
;
%y = xor <2 x i32> %x, <i32 -2147483648, i32 -2147483648>
%z = add nsw <2 x i32> %y, <i32 -2147483648, i32 -2147483648>
ret <2 x i32> %z
}
; Undef elements in either constant vector are ok.
define <2 x i32> @add_nsw_signbit_undef(<2 x i32> %x) {
; CHECK-LABEL: @add_nsw_signbit_undef(
; CHECK-NEXT: [[Y:%.*]] = xor <2 x i32> [[X:%.*]], <i32 undef, i32 -2147483648>
; CHECK-NEXT: [[Z:%.*]] = add nsw <2 x i32> [[Y]], <i32 -2147483648, i32 undef>
; CHECK-NEXT: ret <2 x i32> [[Z]]
;
%y = xor <2 x i32> %x, <i32 undef, i32 -2147483648>
%z = add nsw <2 x i32> %y, <i32 -2147483648, i32 undef>
ret <2 x i32> %z
}
; add nuw (xor X, signbit), signbit --> X
define <2 x i5> @add_nuw_signbit(<2 x i5> %x) {
; CHECK-LABEL: @add_nuw_signbit(
; CHECK-NEXT: ret <2 x i5> %x
; CHECK-NEXT: ret <2 x i5> [[X:%.*]]
;
%y = xor <2 x i5> %x, <i5 -16, i5 -16>
%z = add nuw <2 x i5> %y, <i5 -16, i5 -16>
ret <2 x i5> %z
}
; Undef elements in either constant vector are ok.
define <2 x i5> @add_nuw_signbit_undef(<2 x i5> %x) {
; CHECK-LABEL: @add_nuw_signbit_undef(
; CHECK-NEXT: [[Y:%.*]] = xor <2 x i5> [[X:%.*]], <i5 -16, i5 undef>
; CHECK-NEXT: [[Z:%.*]] = add nuw <2 x i5> [[Y]], <i5 undef, i5 -16>
; CHECK-NEXT: ret <2 x i5> [[Z]]
;
%y = xor <2 x i5> %x, <i5 -16, i5 undef>
%z = add nuw <2 x i5> %y, <i5 undef, i5 -16>
ret <2 x i5> %z
}
define i64 @pow2(i32 %x) {
; CHECK-LABEL: @pow2(
; CHECK-NEXT: [[NEGX:%.*]] = sub i32 0, %x