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[X86] Add mulh test coverage for extension to illegal type 

Part of D113371 - add test coverage for case where we're truncating from an illegal type
This commit is contained in:
Simon Pilgrim 2021-11-30 13:43:11 +00:00
parent 1408684957
commit 9a86eb5602
1 changed files with 37 additions and 0 deletions
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37
llvm/test/CodeGen/X86/pmulh.ll
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@ -304,6 +304,24 @@ define <8 x i16> @sextinreg_mulhw_v8i16(<8 x i32> %a, <8 x i32> %b) {
ret <8 x i16> %e
}
define <8 x i16> @zext_mulhuw_v8i16_v8i33(<8 x i16> %a, <8 x i16> %b) {
; SSE-LABEL: zext_mulhuw_v8i16_v8i33:
; SSE: # %bb.0:
; SSE-NEXT: pmulhuw %xmm1, %xmm0
; SSE-NEXT: retq
;
; AVX-LABEL: zext_mulhuw_v8i16_v8i33:
; AVX: # %bb.0:
; AVX-NEXT: vpmulhuw %xmm1, %xmm0, %xmm0
; AVX-NEXT: retq
%a1 = zext <8 x i16> %a to <8 x i33>
%b1 = zext <8 x i16> %b to <8 x i33>
%c = mul <8 x i33> %a1, %b1
%d = lshr <8 x i33> %c, <i33 16, i33 16, i33 16, i33 16, i33 16, i33 16, i33 16, i33 16>
%e = trunc <8 x i33> %d to <8 x i16>
ret <8 x i16> %e
}
define <16 x i16> @zext_mulhuw_v16i16(<16 x i16> %a, <16 x i16> %b) {
; SSE-LABEL: zext_mulhuw_v16i16:
; SSE: # %bb.0:
@ -517,6 +535,25 @@ define <16 x i16> @ashr_mulhuw_v16i16(<16 x i32> %a, <16 x i32> %b) {
ret <16 x i16> %e
}
define <16 x i16> @zext_mulhuw_v16i16_v16i48(<16 x i16> %a, <16 x i16> %b) {
; SSE-LABEL: zext_mulhuw_v16i16_v16i48:
; SSE: # %bb.0:
; SSE-NEXT: pmulhuw %xmm2, %xmm0
; SSE-NEXT: pmulhuw %xmm3, %xmm1
; SSE-NEXT: retq
;
; AVX-LABEL: zext_mulhuw_v16i16_v16i48:
; AVX: # %bb.0:
; AVX-NEXT: vpmulhuw %ymm1, %ymm0, %ymm0
; AVX-NEXT: retq
%a1 = zext <16 x i16> %a to <16 x i48>
%b1 = zext <16 x i16> %b to <16 x i48>
%c = mul <16 x i48> %a1, %b1
%d = lshr <16 x i48> %c, <i48 16, i48 16, i48 16, i48 16, i48 16, i48 16, i48 16, i48 16, i48 16, i48 16, i48 16, i48 16, i48 16, i48 16, i48 16, i48 16>
%e = trunc <16 x i48> %d to <16 x i16>
ret <16 x i16> %e
}
define <32 x i16> @zext_mulhuw_v32i16(<32 x i16> %a, <32 x i16> %b) {
; SSE-LABEL: zext_mulhuw_v32i16:
; SSE: # %bb.0: