OSchip
/
llvm-project
mirror of https://github.com/THU-DSP-LAB/llvm-project.git
13
0
Fork 6
Code Issues Packages Projects Releases Wiki Activity

[InstCombine] add tests to show missing transforms for vectors; NFC 

llvm-svn: 300401
This commit is contained in:
Sanjay Patel 2017-04-15 17:50:45 +00:00
parent 565019ff32
commit c8405b82a1
1 changed files with 26 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
llvm/test/Transforms/InstCombine/and-or-icmps.ll
View File

@ -177,5 +177,31 @@ define i1 @and_ne_with_diff_one_signed(i64 %x) {
ret i1 %and
}
; FIXME: Vectors with splat constants get the same folds.
define <2 x i1> @or_eq_with_one_bit_diff_constants2_splatvec(<2 x i32> %x) {
; CHECK-LABEL: @or_eq_with_one_bit_diff_constants2_splatvec(
; CHECK-NEXT: [[CMP1:%.*]] = icmp eq <2 x i32> %x, <i32 97, i32 97>
; CHECK-NEXT: [[CMP2:%.*]] = icmp eq <2 x i32> %x, <i32 65, i32 65>
; CHECK-NEXT: [[OR:%.*]] = or <2 x i1> [[CMP1]], [[CMP2]]
; CHECK-NEXT: ret <2 x i1> [[OR]]
;
%cmp1 = icmp eq <2 x i32> %x, <i32 97, i32 97>
%cmp2 = icmp eq <2 x i32> %x, <i32 65, i32 65>
%or = or <2 x i1> %cmp1, %cmp2
ret <2 x i1> %or
}
define <2 x i1> @and_ne_with_diff_one_splatvec(<2 x i32> %x) {
; CHECK-LABEL: @and_ne_with_diff_one_splatvec(
; CHECK-NEXT: [[CMP1:%.*]] = icmp ne <2 x i32> %x, <i32 40, i32 40>
; CHECK-NEXT: [[CMP2:%.*]] = icmp ne <2 x i32> %x, <i32 39, i32 39>
; CHECK-NEXT: [[AND:%.*]] = and <2 x i1> [[CMP1]], [[CMP2]]
; CHECK-NEXT: ret <2 x i1> [[AND]]
;
%cmp1 = icmp ne <2 x i32> %x, <i32 40, i32 40>
%cmp2 = icmp ne <2 x i32> %x, <i32 39, i32 39>
%and = and <2 x i1> %cmp1, %cmp2
ret <2 x i1> %and
}