| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -instcombine -S | FileCheck %s |
| |
| ; PR1253 |
| define i1 @test0(i32 %A) { |
| ; CHECK-LABEL: @test0( |
| ; CHECK-NEXT: [[C:%.*]] = icmp slt i32 [[A:%.*]], 0 |
| ; CHECK-NEXT: ret i1 [[C]] |
| ; |
| %B = xor i32 %A, -2147483648 |
| %C = icmp sgt i32 %B, -1 |
| ret i1 %C |
| } |
| |
| define <2 x i1> @test0vec(<2 x i32> %A) { |
| ; CHECK-LABEL: @test0vec( |
| ; CHECK-NEXT: [[C:%.*]] = icmp slt <2 x i32> [[A:%.*]], zeroinitializer |
| ; CHECK-NEXT: ret <2 x i1> [[C]] |
| ; |
| %B = xor <2 x i32> %A, <i32 -2147483648, i32 -2147483648> |
| %C = icmp sgt <2 x i32> %B, <i32 -1, i32 -1> |
| ret <2 x i1> %C |
| } |
| |
| define i1 @test1(i32 %A) { |
| ; CHECK-LABEL: @test1( |
| ; CHECK-NEXT: [[C:%.*]] = icmp slt i32 [[A:%.*]], 0 |
| ; CHECK-NEXT: ret i1 [[C]] |
| ; |
| %B = xor i32 %A, 12345 |
| %C = icmp slt i32 %B, 0 |
| ret i1 %C |
| } |
| |
| ; PR1014 |
| define i32 @test2(i32 %tmp1) { |
| ; CHECK-LABEL: @test2( |
| ; CHECK-NEXT: [[OVM:%.*]] = and i32 [[TMP1:%.*]], 32 |
| ; CHECK-NEXT: [[OV1101:%.*]] = or i32 [[OVM]], 8 |
| ; CHECK-NEXT: ret i32 [[OV1101]] |
| ; |
| %ovm = and i32 %tmp1, 32 |
| %ov3 = add i32 %ovm, 145 |
| %ov110 = xor i32 %ov3, 153 |
| ret i32 %ov110 |
| } |
| |
| define i32 @test3(i32 %tmp1) { |
| ; CHECK-LABEL: @test3( |
| ; CHECK-NEXT: [[OVM:%.*]] = and i32 [[TMP1:%.*]], 32 |
| ; CHECK-NEXT: [[OV1101:%.*]] = or i32 [[OVM]], 8 |
| ; CHECK-NEXT: ret i32 [[OV1101]] |
| ; |
| %ovm = or i32 %tmp1, 145 |
| %ov31 = and i32 %ovm, 177 |
| %ov110 = xor i32 %ov31, 153 |
| ret i32 %ov110 |
| } |
| |
| ; defect-2 in rdar://12329730 |
| ; (X^C1) >> C2) ^ C3 -> (X>>C2) ^ ((C1>>C2)^C3) |
| ; where the "X" has more than one use |
| define i32 @test5(i32 %val1) { |
| ; CHECK-LABEL: @test5( |
| ; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[VAL1:%.*]], 1234 |
| ; CHECK-NEXT: [[SHR:%.*]] = lshr i32 [[VAL1]], 8 |
| ; CHECK-NEXT: [[XOR1:%.*]] = xor i32 [[SHR]], 5 |
| ; CHECK-NEXT: [[ADD:%.*]] = add i32 [[XOR1]], [[XOR]] |
| ; CHECK-NEXT: ret i32 [[ADD]] |
| ; |
| %xor = xor i32 %val1, 1234 |
| %shr = lshr i32 %xor, 8 |
| %xor1 = xor i32 %shr, 1 |
| %add = add i32 %xor1, %xor |
| ret i32 %add |
| } |
| |
| ; defect-1 in rdar://12329730 |
| ; Simplify (X^Y) -> X or Y in the user's context if we know that |
| ; only bits from X or Y are demanded. |
| ; e.g. the "x ^ 1234" can be optimized into x in the context of "t >> 16". |
| ; Put in other word, t >> 16 -> x >> 16. |
| ; unsigned foo(unsigned x) { unsigned t = x ^ 1234; ; return (t >> 16) + t;} |
| define i32 @test6(i32 %x) { |
| ; CHECK-LABEL: @test6( |
| ; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[X:%.*]], 1234 |
| ; CHECK-NEXT: [[SHR:%.*]] = lshr i32 [[X]], 16 |
| ; CHECK-NEXT: [[ADD:%.*]] = add i32 [[SHR]], [[XOR]] |
| ; CHECK-NEXT: ret i32 [[ADD]] |
| ; |
| %xor = xor i32 %x, 1234 |
| %shr = lshr i32 %xor, 16 |
| %add = add i32 %shr, %xor |
| ret i32 %add |
| } |
| |
| |
| ; (A | B) ^ (~A) -> (A | ~B) |
| define i32 @test7(i32 %a, i32 %b) { |
| ; CHECK-LABEL: @test7( |
| ; CHECK-NEXT: [[B_NOT:%.*]] = xor i32 [[B:%.*]], -1 |
| ; CHECK-NEXT: [[XOR:%.*]] = or i32 [[B_NOT]], [[A:%.*]] |
| ; CHECK-NEXT: ret i32 [[XOR]] |
| ; |
| %or = or i32 %a, %b |
| %neg = xor i32 %a, -1 |
| %xor = xor i32 %or, %neg |
| ret i32 %xor |
| } |
| |
| ; (~A) ^ (A | B) -> (A | ~B) |
| define i32 @test8(i32 %a, i32 %b) { |
| ; CHECK-LABEL: @test8( |
| ; CHECK-NEXT: [[B_NOT:%.*]] = xor i32 [[B:%.*]], -1 |
| ; CHECK-NEXT: [[XOR:%.*]] = or i32 [[B_NOT]], [[A:%.*]] |
| ; CHECK-NEXT: ret i32 [[XOR]] |
| ; |
| %neg = xor i32 %a, -1 |
| %or = or i32 %a, %b |
| %xor = xor i32 %neg, %or |
| ret i32 %xor |
| } |
| |
| ; (A & B) ^ (A ^ B) -> (A | B) |
| define i32 @test9(i32 %b, i32 %c) { |
| ; CHECK-LABEL: @test9( |
| ; CHECK-NEXT: [[XOR2:%.*]] = or i32 [[B:%.*]], [[C:%.*]] |
| ; CHECK-NEXT: ret i32 [[XOR2]] |
| ; |
| %and = and i32 %b, %c |
| %xor = xor i32 %b, %c |
| %xor2 = xor i32 %and, %xor |
| ret i32 %xor2 |
| } |
| |
| ; (A & B) ^ (B ^ A) -> (A | B) |
| define i32 @test9b(i32 %b, i32 %c) { |
| ; CHECK-LABEL: @test9b( |
| ; CHECK-NEXT: [[XOR2:%.*]] = or i32 [[B:%.*]], [[C:%.*]] |
| ; CHECK-NEXT: ret i32 [[XOR2]] |
| ; |
| %and = and i32 %b, %c |
| %xor = xor i32 %c, %b |
| %xor2 = xor i32 %and, %xor |
| ret i32 %xor2 |
| } |
| |
| ; (A ^ B) ^ (A & B) -> (A | B) |
| define i32 @test10(i32 %b, i32 %c) { |
| ; CHECK-LABEL: @test10( |
| ; CHECK-NEXT: [[XOR2:%.*]] = or i32 [[B:%.*]], [[C:%.*]] |
| ; CHECK-NEXT: ret i32 [[XOR2]] |
| ; |
| %xor = xor i32 %b, %c |
| %and = and i32 %b, %c |
| %xor2 = xor i32 %xor, %and |
| ret i32 %xor2 |
| } |
| |
| ; (A ^ B) ^ (A & B) -> (A | B) |
| define i32 @test10b(i32 %b, i32 %c) { |
| ; CHECK-LABEL: @test10b( |
| ; CHECK-NEXT: [[XOR2:%.*]] = or i32 [[B:%.*]], [[C:%.*]] |
| ; CHECK-NEXT: ret i32 [[XOR2]] |
| ; |
| %xor = xor i32 %b, %c |
| %and = and i32 %c, %b |
| %xor2 = xor i32 %xor, %and |
| ret i32 %xor2 |
| } |
| |
| define i32 @test11(i32 %A, i32 %B) { |
| ; CHECK-LABEL: @test11( |
| ; CHECK-NEXT: [[XOR1:%.*]] = xor i32 [[B:%.*]], [[A:%.*]] |
| ; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[A]], [[B]] |
| ; CHECK-NEXT: [[XOR2:%.*]] = xor i32 [[TMP1]], -1 |
| ; CHECK-NEXT: [[AND:%.*]] = and i32 [[XOR1]], [[XOR2]] |
| ; CHECK-NEXT: ret i32 [[AND]] |
| ; |
| %xor1 = xor i32 %B, %A |
| %not = xor i32 %A, -1 |
| %xor2 = xor i32 %not, %B |
| %and = and i32 %xor1, %xor2 |
| ret i32 %and |
| } |
| |
| define i32 @test11b(i32 %A, i32 %B) { |
| ; CHECK-LABEL: @test11b( |
| ; CHECK-NEXT: [[XOR1:%.*]] = xor i32 [[B:%.*]], [[A:%.*]] |
| ; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[A]], [[B]] |
| ; CHECK-NEXT: [[XOR2:%.*]] = xor i32 [[TMP1]], -1 |
| ; CHECK-NEXT: [[AND:%.*]] = and i32 [[XOR1]], [[XOR2]] |
| ; CHECK-NEXT: ret i32 [[AND]] |
| ; |
| %xor1 = xor i32 %B, %A |
| %not = xor i32 %A, -1 |
| %xor2 = xor i32 %not, %B |
| %and = and i32 %xor2, %xor1 |
| ret i32 %and |
| } |
| |
| define i32 @test11c(i32 %A, i32 %B) { |
| ; CHECK-LABEL: @test11c( |
| ; CHECK-NEXT: [[XOR1:%.*]] = xor i32 [[A:%.*]], [[B:%.*]] |
| ; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[A]], [[B]] |
| ; CHECK-NEXT: [[XOR2:%.*]] = xor i32 [[TMP1]], -1 |
| ; CHECK-NEXT: [[AND:%.*]] = and i32 [[XOR1]], [[XOR2]] |
| ; CHECK-NEXT: ret i32 [[AND]] |
| ; |
| %xor1 = xor i32 %A, %B |
| %not = xor i32 %A, -1 |
| %xor2 = xor i32 %not, %B |
| %and = and i32 %xor1, %xor2 |
| ret i32 %and |
| } |
| |
| define i32 @test11d(i32 %A, i32 %B) { |
| ; CHECK-LABEL: @test11d( |
| ; CHECK-NEXT: [[XOR1:%.*]] = xor i32 [[A:%.*]], [[B:%.*]] |
| ; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[A]], [[B]] |
| ; CHECK-NEXT: [[XOR2:%.*]] = xor i32 [[TMP1]], -1 |
| ; CHECK-NEXT: [[AND:%.*]] = and i32 [[XOR1]], [[XOR2]] |
| ; CHECK-NEXT: ret i32 [[AND]] |
| ; |
| %xor1 = xor i32 %A, %B |
| %not = xor i32 %A, -1 |
| %xor2 = xor i32 %not, %B |
| %and = and i32 %xor2, %xor1 |
| ret i32 %and |
| } |
| |
| define i32 @test11e(i32 %A, i32 %B, i32 %C) { |
| ; CHECK-LABEL: @test11e( |
| ; CHECK-NEXT: [[FORCE:%.*]] = mul i32 [[B:%.*]], [[C:%.*]] |
| ; CHECK-NEXT: [[XOR1:%.*]] = xor i32 [[FORCE]], [[A:%.*]] |
| ; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[FORCE]], [[A]] |
| ; CHECK-NEXT: [[XOR2:%.*]] = xor i32 [[TMP1]], -1 |
| ; CHECK-NEXT: [[AND:%.*]] = and i32 [[XOR1]], [[XOR2]] |
| ; CHECK-NEXT: ret i32 [[AND]] |
| ; |
| %force = mul i32 %B, %C |
| %xor1 = xor i32 %force, %A |
| %not = xor i32 %A, -1 |
| %xor2 = xor i32 %force, %not |
| %and = and i32 %xor1, %xor2 |
| ret i32 %and |
| } |
| |
| define i32 @test11f(i32 %A, i32 %B, i32 %C) { |
| ; CHECK-LABEL: @test11f( |
| ; CHECK-NEXT: [[FORCE:%.*]] = mul i32 [[B:%.*]], [[C:%.*]] |
| ; CHECK-NEXT: [[XOR1:%.*]] = xor i32 [[FORCE]], [[A:%.*]] |
| ; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[FORCE]], [[A]] |
| ; CHECK-NEXT: [[XOR2:%.*]] = xor i32 [[TMP1]], -1 |
| ; CHECK-NEXT: [[AND:%.*]] = and i32 [[XOR1]], [[XOR2]] |
| ; CHECK-NEXT: ret i32 [[AND]] |
| ; |
| %force = mul i32 %B, %C |
| %xor1 = xor i32 %force, %A |
| %not = xor i32 %A, -1 |
| %xor2 = xor i32 %force, %not |
| %and = and i32 %xor2, %xor1 |
| ret i32 %and |
| } |
| |
| define i32 @test12(i32 %a, i32 %b) { |
| ; CHECK-LABEL: @test12( |
| ; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[A:%.*]], [[B:%.*]] |
| ; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[TMP1]], -1 |
| ; CHECK-NEXT: ret i32 [[XOR]] |
| ; |
| %negb = xor i32 %b, -1 |
| %and = and i32 %a, %negb |
| %nega = xor i32 %a, -1 |
| %xor = xor i32 %and, %nega |
| ret i32 %xor |
| } |
| |
| define i32 @test12commuted(i32 %a, i32 %b) { |
| ; CHECK-LABEL: @test12commuted( |
| ; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[A:%.*]], [[B:%.*]] |
| ; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[TMP1]], -1 |
| ; CHECK-NEXT: ret i32 [[XOR]] |
| ; |
| %negb = xor i32 %b, -1 |
| %and = and i32 %negb, %a |
| %nega = xor i32 %a, -1 |
| %xor = xor i32 %and, %nega |
| ret i32 %xor |
| } |
| |
| ; This is a test of canonicalization via operand complexity. |
| ; The final xor has a binary operator and a (fake) unary operator, |
| ; so binary (more complex) should come first. |
| |
| define i32 @test13(i32 %a, i32 %b) { |
| ; CHECK-LABEL: @test13( |
| ; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[A:%.*]], [[B:%.*]] |
| ; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[TMP1]], -1 |
| ; CHECK-NEXT: ret i32 [[XOR]] |
| ; |
| %nega = xor i32 %a, -1 |
| %negb = xor i32 %b, -1 |
| %and = and i32 %a, %negb |
| %xor = xor i32 %nega, %and |
| ret i32 %xor |
| } |
| |
| define i32 @test13commuted(i32 %a, i32 %b) { |
| ; CHECK-LABEL: @test13commuted( |
| ; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[A:%.*]], [[B:%.*]] |
| ; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[TMP1]], -1 |
| ; CHECK-NEXT: ret i32 [[XOR]] |
| ; |
| %nega = xor i32 %a, -1 |
| %negb = xor i32 %b, -1 |
| %and = and i32 %negb, %a |
| %xor = xor i32 %nega, %and |
| ret i32 %xor |
| } |
| |
| ; (A ^ C) ^ (A | B) -> ((~A) & B) ^ C |
| |
| define i32 @xor_or_xor_common_op_commute1(i32 %a, i32 %b, i32 %c) { |
| ; CHECK-LABEL: @xor_or_xor_common_op_commute1( |
| ; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[A:%.*]], -1 |
| ; CHECK-NEXT: [[TMP2:%.*]] = and i32 [[TMP1]], [[B:%.*]] |
| ; CHECK-NEXT: [[R:%.*]] = xor i32 [[TMP2]], [[C:%.*]] |
| ; CHECK-NEXT: ret i32 [[R]] |
| ; |
| %ac = xor i32 %a, %c |
| %ab = or i32 %a, %b |
| %r = xor i32 %ac, %ab |
| ret i32 %r |
| } |
| |
| ; (C ^ A) ^ (A | B) -> ((~A) & B) ^ C |
| |
| define i32 @xor_or_xor_common_op_commute2(i32 %a, i32 %b, i32 %c) { |
| ; CHECK-LABEL: @xor_or_xor_common_op_commute2( |
| ; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[A:%.*]], -1 |
| ; CHECK-NEXT: [[TMP2:%.*]] = and i32 [[TMP1]], [[B:%.*]] |
| ; CHECK-NEXT: [[R:%.*]] = xor i32 [[TMP2]], [[C:%.*]] |
| ; CHECK-NEXT: ret i32 [[R]] |
| ; |
| %ac = xor i32 %c, %a |
| %ab = or i32 %a, %b |
| %r = xor i32 %ac, %ab |
| ret i32 %r |
| } |
| |
| ; (A ^ C) ^ (B | A) -> ((~A) & B) ^ C |
| |
| define i32 @xor_or_xor_common_op_commute3(i32 %a, i32 %b, i32 %c) { |
| ; CHECK-LABEL: @xor_or_xor_common_op_commute3( |
| ; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[A:%.*]], -1 |
| ; CHECK-NEXT: [[TMP2:%.*]] = and i32 [[TMP1]], [[B:%.*]] |
| ; CHECK-NEXT: [[R:%.*]] = xor i32 [[TMP2]], [[C:%.*]] |
| ; CHECK-NEXT: ret i32 [[R]] |
| ; |
| %ac = xor i32 %a, %c |
| %ab = or i32 %b, %a |
| %r = xor i32 %ac, %ab |
| ret i32 %r |
| } |
| |
| ; (C ^ A) ^ (B | A) -> ((~A) & B) ^ C |
| |
| define i32 @xor_or_xor_common_op_commute4(i32 %a, i32 %b, i32 %c) { |
| ; CHECK-LABEL: @xor_or_xor_common_op_commute4( |
| ; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[A:%.*]], -1 |
| ; CHECK-NEXT: [[TMP2:%.*]] = and i32 [[TMP1]], [[B:%.*]] |
| ; CHECK-NEXT: [[R:%.*]] = xor i32 [[TMP2]], [[C:%.*]] |
| ; CHECK-NEXT: ret i32 [[R]] |
| ; |
| %ac = xor i32 %c, %a |
| %ab = or i32 %b, %a |
| %r = xor i32 %ac, %ab |
| ret i32 %r |
| } |
| |
| ; (A | B) ^ (A ^ C) -> ((~A) & B) ^ C |
| |
| define i32 @xor_or_xor_common_op_commute5(i32 %a, i32 %b, i32 %c) { |
| ; CHECK-LABEL: @xor_or_xor_common_op_commute5( |
| ; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[A:%.*]], -1 |
| ; CHECK-NEXT: [[TMP2:%.*]] = and i32 [[TMP1]], [[B:%.*]] |
| ; CHECK-NEXT: [[R:%.*]] = xor i32 [[TMP2]], [[C:%.*]] |
| ; CHECK-NEXT: ret i32 [[R]] |
| ; |
| %ac = xor i32 %a, %c |
| %ab = or i32 %a, %b |
| %r = xor i32 %ab, %ac |
| ret i32 %r |
| } |
| |
| ; (A | B) ^ (C ^ A) -> ((~A) & B) ^ C |
| |
| define i32 @xor_or_xor_common_op_commute6(i32 %a, i32 %b, i32 %c) { |
| ; CHECK-LABEL: @xor_or_xor_common_op_commute6( |
| ; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[A:%.*]], -1 |
| ; CHECK-NEXT: [[TMP2:%.*]] = and i32 [[TMP1]], [[B:%.*]] |
| ; CHECK-NEXT: [[R:%.*]] = xor i32 [[TMP2]], [[C:%.*]] |
| ; CHECK-NEXT: ret i32 [[R]] |
| ; |
| %ac = xor i32 %c, %a |
| %ab = or i32 %a, %b |
| %r = xor i32 %ab, %ac |
| ret i32 %r |
| } |
| |
| ; (B | A) ^ (A ^ C) -> ((~A) & B) ^ C |
| |
| define i32 @xor_or_xor_common_op_commute7(i32 %a, i32 %b, i32 %c) { |
| ; CHECK-LABEL: @xor_or_xor_common_op_commute7( |
| ; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[A:%.*]], -1 |
| ; CHECK-NEXT: [[TMP2:%.*]] = and i32 [[TMP1]], [[B:%.*]] |
| ; CHECK-NEXT: [[R:%.*]] = xor i32 [[TMP2]], [[C:%.*]] |
| ; CHECK-NEXT: ret i32 [[R]] |
| ; |
| %ac = xor i32 %a, %c |
| %ab = or i32 %b, %a |
| %r = xor i32 %ab, %ac |
| ret i32 %r |
| } |
| |
| ; (B | A) ^ (C ^ A) -> ((~A) & B) ^ C |
| |
| define i32 @xor_or_xor_common_op_commute8(i32 %a, i32 %b, i32 %c) { |
| ; CHECK-LABEL: @xor_or_xor_common_op_commute8( |
| ; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[A:%.*]], -1 |
| ; CHECK-NEXT: [[TMP2:%.*]] = and i32 [[TMP1]], [[B:%.*]] |
| ; CHECK-NEXT: [[R:%.*]] = xor i32 [[TMP2]], [[C:%.*]] |
| ; CHECK-NEXT: ret i32 [[R]] |
| ; |
| %ac = xor i32 %c, %a |
| %ab = or i32 %b, %a |
| %r = xor i32 %ab, %ac |
| ret i32 %r |
| } |
| |
| define i32 @xor_or_xor_common_op_extra_use1(i32 %a, i32 %b, i32 %c, i32* %p) { |
| ; CHECK-LABEL: @xor_or_xor_common_op_extra_use1( |
| ; CHECK-NEXT: [[AC:%.*]] = xor i32 [[A:%.*]], [[C:%.*]] |
| ; CHECK-NEXT: store i32 [[AC]], i32* [[P:%.*]], align 4 |
| ; CHECK-NEXT: [[AB:%.*]] = or i32 [[A]], [[B:%.*]] |
| ; CHECK-NEXT: [[R:%.*]] = xor i32 [[AC]], [[AB]] |
| ; CHECK-NEXT: ret i32 [[R]] |
| ; |
| %ac = xor i32 %a, %c |
| store i32 %ac, i32* %p |
| %ab = or i32 %a, %b |
| %r = xor i32 %ac, %ab |
| ret i32 %r |
| } |
| |
| define i32 @xor_or_xor_common_op_extra_use2(i32 %a, i32 %b, i32 %c, i32* %p) { |
| ; CHECK-LABEL: @xor_or_xor_common_op_extra_use2( |
| ; CHECK-NEXT: [[AC:%.*]] = xor i32 [[A:%.*]], [[C:%.*]] |
| ; CHECK-NEXT: [[AB:%.*]] = or i32 [[A]], [[B:%.*]] |
| ; CHECK-NEXT: store i32 [[AB]], i32* [[P:%.*]], align 4 |
| ; CHECK-NEXT: [[R:%.*]] = xor i32 [[AC]], [[AB]] |
| ; CHECK-NEXT: ret i32 [[R]] |
| ; |
| %ac = xor i32 %a, %c |
| %ab = or i32 %a, %b |
| store i32 %ab, i32* %p |
| %r = xor i32 %ac, %ab |
| ret i32 %r |
| } |
| |
| define i32 @xor_or_xor_common_op_extra_use3(i32 %a, i32 %b, i32 %c, i32* %p1, i32* %p2) { |
| ; CHECK-LABEL: @xor_or_xor_common_op_extra_use3( |
| ; CHECK-NEXT: [[AC:%.*]] = xor i32 [[A:%.*]], [[C:%.*]] |
| ; CHECK-NEXT: store i32 [[AC]], i32* [[P1:%.*]], align 4 |
| ; CHECK-NEXT: [[AB:%.*]] = or i32 [[A]], [[B:%.*]] |
| ; CHECK-NEXT: store i32 [[AB]], i32* [[P2:%.*]], align 4 |
| ; CHECK-NEXT: [[R:%.*]] = xor i32 [[AC]], [[AB]] |
| ; CHECK-NEXT: ret i32 [[R]] |
| ; |
| %ac = xor i32 %a, %c |
| store i32 %ac, i32* %p1 |
| %ab = or i32 %a, %b |
| store i32 %ab, i32* %p2 |
| %r = xor i32 %ac, %ab |
| ret i32 %r |
| } |
| |
| define i8 @test15(i8 %A, i8 %B) { |
| ; CHECK-LABEL: @test15( |
| ; CHECK-NEXT: [[XOR1:%.*]] = xor i8 [[B:%.*]], [[A:%.*]] |
| ; CHECK-NEXT: [[TMP1:%.*]] = xor i8 [[A]], [[B]] |
| ; CHECK-NEXT: [[XOR2:%.*]] = xor i8 [[TMP1]], 33 |
| ; CHECK-NEXT: [[AND:%.*]] = and i8 [[XOR1]], [[XOR2]] |
| ; CHECK-NEXT: [[RES:%.*]] = mul i8 [[AND]], [[XOR2]] |
| ; CHECK-NEXT: ret i8 [[RES]] |
| ; |
| %xor1 = xor i8 %B, %A |
| %not = xor i8 %A, 33 |
| %xor2 = xor i8 %not, %B |
| %and = and i8 %xor1, %xor2 |
| %res = mul i8 %and, %xor2 ; to increase the use count for the xor |
| ret i8 %res |
| } |
| |
| define i8 @test16(i8 %A, i8 %B) { |
| ; CHECK-LABEL: @test16( |
| ; CHECK-NEXT: [[XOR1:%.*]] = xor i8 [[B:%.*]], [[A:%.*]] |
| ; CHECK-NEXT: [[TMP1:%.*]] = xor i8 [[A]], [[B]] |
| ; CHECK-NEXT: [[XOR2:%.*]] = xor i8 [[TMP1]], 33 |
| ; CHECK-NEXT: [[AND:%.*]] = and i8 [[XOR2]], [[XOR1]] |
| ; CHECK-NEXT: [[RES:%.*]] = mul i8 [[AND]], [[XOR2]] |
| ; CHECK-NEXT: ret i8 [[RES]] |
| ; |
| %xor1 = xor i8 %B, %A |
| %not = xor i8 %A, 33 |
| %xor2 = xor i8 %not, %B |
| %and = and i8 %xor2, %xor1 |
| %res = mul i8 %and, %xor2 ; to increase the use count for the xor |
| ret i8 %res |
| } |