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[AArch64] add tests for masked subtract; NFC

This commit is contained in:
Sanjay Patel 2022-06-17 14:10:13 -04:00
parent db1978b674
commit f126643862
1 changed files with 50 additions and 0 deletions
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50
llvm/test/CodeGen/AArch64/sub1.ll
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@ -14,3 +14,53 @@ define i64 @sub1_disguised_constant(i64 %x) {
ret i64 %r
}
define i8 @masked_sub_i8(i8 %x) {
; CHECK-LABEL: masked_sub_i8:
; CHECK: // %bb.0:
; CHECK-NEXT: mov w8, #5
; CHECK-NEXT: mov w9, #7
; CHECK-NEXT: and w8, w0, w8
; CHECK-NEXT: sub w0, w9, w8
; CHECK-NEXT: ret
%a = and i8 %x, 5
%m = sub i8 7, %a
ret i8 %m
}
define i8 @not_masked_sub_i8(i8 %x) {
; CHECK-LABEL: not_masked_sub_i8:
; CHECK: // %bb.0:
; CHECK-NEXT: mov w8, #7
; CHECK-NEXT: and w9, w0, #0x8
; CHECK-NEXT: sub w0, w8, w9
; CHECK-NEXT: ret
%a = and i8 %x, 8
%m = sub i8 7, %a
ret i8 %m
}
define i32 @masked_sub_i32(i32 %x) {
; CHECK-LABEL: masked_sub_i32:
; CHECK: // %bb.0:
; CHECK-NEXT: mov w8, #9
; CHECK-NEXT: mov w9, #31
; CHECK-NEXT: and w8, w0, w8
; CHECK-NEXT: sub w0, w9, w8
; CHECK-NEXT: ret
%a = and i32 %x, 9
%m = sub i32 31, %a
ret i32 %m
}
define <4 x i32> @masked_sub_v4i32(<4 x i32> %x) {
; CHECK-LABEL: masked_sub_v4i32:
; CHECK: // %bb.0:
; CHECK-NEXT: movi v1.4s, #42
; CHECK-NEXT: movi v2.4s, #1, msl #8
; CHECK-NEXT: and v0.16b, v0.16b, v1.16b
; CHECK-NEXT: sub v0.4s, v2.4s, v0.4s
; CHECK-NEXT: ret
%a = and <4 x i32> %x, <i32 42, i32 42, i32 42, i32 42>
%m = sub <4 x i32> <i32 511, i32 511, i32 511, i32 511>, %a
ret <4 x i32> %m
}