Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/test/Transforms/InstCombine/and-or.ll

@@ -1,132 +0,0 @@
-; NOTE: Assertions have been autogenerated by update_test_checks.py
-; RUN: opt < %s -instcombine -S | FileCheck %s
-
-define i32 @func1(i32 %a, i32 %b) {
-; CHECK-LABEL: @func1(
-; CHECK-NEXT:    [[TMP1:%.*]] = and i32 %a, 1
-; CHECK-NEXT:    [[TMP3:%.*]] = or i32 [[TMP1]], %b
-; CHECK-NEXT:    ret i32 [[TMP3]]
-;
-  %tmp = or i32 %b, %a
-  %tmp1 = and i32 %tmp, 1
-  %tmp2 = and i32 %b, -2
-  %tmp3 = or i32 %tmp1, %tmp2
-  ret i32 %tmp3
-}
-
-define i32 @func2(i32 %a, i32 %b) {
-; CHECK-LABEL: @func2(
-; CHECK-NEXT:    [[TMP1:%.*]] = and i32 %a, 1
-; CHECK-NEXT:    [[TMP3:%.*]] = or i32 [[TMP1]], %b
-; CHECK-NEXT:    ret i32 [[TMP3]]
-;
-  %tmp = or i32 %a, %b
-  %tmp1 = and i32 1, %tmp
-  %tmp2 = and i32 -2, %b
-  %tmp3 = or i32 %tmp1, %tmp2
-  ret i32 %tmp3
-}
-
-define i32 @func3(i32 %a, i32 %b) {
-; CHECK-LABEL: @func3(
-; CHECK-NEXT:    [[TMP1:%.*]] = and i32 %a, 1
-; CHECK-NEXT:    [[TMP3:%.*]] = or i32 [[TMP1]], %b
-; CHECK-NEXT:    ret i32 [[TMP3]]
-;
-  %tmp = or i32 %b, %a
-  %tmp1 = and i32 %tmp, 1
-  %tmp2 = and i32 %b, -2
-  %tmp3 = or i32 %tmp2, %tmp1
-  ret i32 %tmp3
-}
-
-define i32 @func4(i32 %a, i32 %b) {
-; CHECK-LABEL: @func4(
-; CHECK-NEXT:    [[TMP1:%.*]] = and i32 %a, 1
-; CHECK-NEXT:    [[TMP3:%.*]] = or i32 [[TMP1]], %b
-; CHECK-NEXT:    ret i32 [[TMP3]]
-;
-  %tmp = or i32 %a, %b
-  %tmp1 = and i32 1, %tmp
-  %tmp2 = and i32 -2, %b
-  %tmp3 = or i32 %tmp2, %tmp1
-  ret i32 %tmp3
-}
-
-; Check variants of:
-; and ({x}or X, Y), C --> {x}or X, (and Y, C)
-; ...in the following 5 tests.
-
-define i8 @and_or_hoist_mask(i8 %a, i8 %b) {
-; CHECK-LABEL: @and_or_hoist_mask(
-; CHECK-NEXT:    [[SH:%.*]] = lshr i8 %a, 6
-; CHECK-NEXT:    [[B_MASKED:%.*]] = and i8 %b, 3
-; CHECK-NEXT:    [[AND:%.*]] = or i8 [[SH]], [[B_MASKED]]
-; CHECK-NEXT:    ret i8 [[AND]]
-;
-  %sh = lshr i8 %a, 6
-  %or = or i8 %sh, %b
-  %and = and i8 %or, 3
-  ret i8 %and
-}
-
-define <2 x i8> @and_xor_hoist_mask_vec_splat(<2 x i8> %a, <2 x i8> %b) {
-; CHECK-LABEL: @and_xor_hoist_mask_vec_splat(
-; CHECK-NEXT:    [[SH:%.*]] = lshr <2 x i8> %a, <i8 6, i8 6>
-; CHECK-NEXT:    [[B_MASKED:%.*]] = and <2 x i8> %b, <i8 3, i8 3>
-; CHECK-NEXT:    [[AND:%.*]] = xor <2 x i8> [[SH]], [[B_MASKED]]
-; CHECK-NEXT:    ret <2 x i8> [[AND]]
-;
-  %sh = lshr <2 x i8> %a, <i8 6, i8 6>
-  %xor = xor <2 x i8> %sh, %b
-  %and = and <2 x i8> %xor, <i8 3, i8 3>
-  ret <2 x i8> %and
-}
-
-define i8 @and_xor_hoist_mask_commute(i8 %a, i8 %b) {
-; CHECK-LABEL: @and_xor_hoist_mask_commute(
-; CHECK-NEXT:    [[C:%.*]] = mul i8 %b, 43
-; CHECK-NEXT:    [[SH:%.*]] = lshr i8 %a, 6
-; CHECK-NEXT:    [[C_MASKED:%.*]] = and i8 [[C]], 3
-; CHECK-NEXT:    [[AND:%.*]] = xor i8 [[C_MASKED]], [[SH]]
-; CHECK-NEXT:    ret i8 [[AND]]
-;
-  %c = mul i8 %b, 43 ; thwart complexity-based ordering
-  %sh = lshr i8 %a, 6
-  %xor = xor i8 %c, %sh
-  %and = and i8 %xor, 3
-  ret i8 %and
-}
-
-define <2 x i8> @and_or_hoist_mask_commute_vec_splat(<2 x i8> %a, <2 x i8> %b) {
-; CHECK-LABEL: @and_or_hoist_mask_commute_vec_splat(
-; CHECK-NEXT:    [[C:%.*]] = mul <2 x i8> %b, <i8 43, i8 43>
-; CHECK-NEXT:    [[SH:%.*]] = lshr <2 x i8> %a, <i8 6, i8 6>
-; CHECK-NEXT:    [[C_MASKED:%.*]] = and <2 x i8> [[C]], <i8 3, i8 3>
-; CHECK-NEXT:    [[AND:%.*]] = or <2 x i8> [[C_MASKED]], [[SH]]
-; CHECK-NEXT:    ret <2 x i8> [[AND]]
-;
-  %c = mul <2 x i8> %b, <i8 43, i8 43> ; thwart complexity-based ordering
-  %sh = lshr <2 x i8> %a, <i8 6, i8 6>
-  %or = or <2 x i8> %c, %sh
-  %and = and <2 x i8> %or, <i8 3, i8 3>
-  ret <2 x i8> %and
-}
-
-; Don't transform if the 'or' has multiple uses because that would increase instruction count.
-
-define i8 @and_or_do_not_hoist_mask(i8 %a, i8 %b) {
-; CHECK-LABEL: @and_or_do_not_hoist_mask(
-; CHECK-NEXT:    [[SH:%.*]] = lshr i8 %a, 6
-; CHECK-NEXT:    [[OR:%.*]] = or i8 [[SH]], %b
-; CHECK-NEXT:    [[AND:%.*]] = and i8 [[OR]], 3
-; CHECK-NEXT:    [[EXTRA_USE_OF_OR:%.*]] = mul i8 [[OR]], [[AND]]
-; CHECK-NEXT:    ret i8 [[EXTRA_USE_OF_OR]]
-;
-  %sh = lshr i8 %a, 6
-  %or = or i8 %sh, %b
-  %and = and i8 %or, 3
-  %extra_use_of_or = mul i8 %or, %and
-  ret i8 %extra_use_of_or
-}
-