; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt < %s -reassociate -S | FileCheck %s ; Check that a*c+b*c is turned into (a+b)*c define <4 x float> @test1(<4 x float> %a, <4 x float> %b, <4 x float> %c) { ; CHECK-LABEL: @test1( ; CHECK-NEXT: [[REASS_ADD:%.*]] = fadd fast <4 x float> [[B:%.*]], [[A:%.*]] ; CHECK-NEXT: [[REASS_MUL:%.*]] = fmul fast <4 x float> [[REASS_ADD]], [[C:%.*]] ; CHECK-NEXT: ret <4 x float> [[REASS_MUL]] ; %mul = fmul fast <4 x float> %a, %c %mul1 = fmul fast <4 x float> %b, %c %add = fadd fast <4 x float> %mul, %mul1 ret <4 x float> %add } ; Check that a*c+b*c is turned into (a+b)*c - minimum FMF subset version define <4 x float> @test1_reassoc(<4 x float> %a, <4 x float> %b, <4 x float> %c) { ; CHECK-LABEL: @test1_reassoc( ; CHECK-NEXT: [[MUL:%.*]] = fmul reassoc <4 x float> [[A:%.*]], [[C:%.*]] ; CHECK-NEXT: [[MUL1:%.*]] = fmul reassoc <4 x float> [[B:%.*]], [[C]] ; CHECK-NEXT: [[ADD:%.*]] = fadd reassoc <4 x float> [[MUL]], [[MUL1]] ; CHECK-NEXT: ret <4 x float> [[ADD]] ; %mul = fmul reassoc <4 x float> %a, %c %mul1 = fmul reassoc <4 x float> %b, %c %add = fadd reassoc <4 x float> %mul, %mul1 ret <4 x float> %add } ; Check that a*a*b+a*a*c is turned into a*(a*(b+c)). define <2 x float> @test2(<2 x float> %a, <2 x float> %b, <2 x float> %c) { ; CHECK-LABEL: @test2( ; CHECK-NEXT: [[REASS_ADD1:%.*]] = fadd fast <2 x float> [[C:%.*]], [[B:%.*]] ; CHECK-NEXT: [[REASS_MUL2:%.*]] = fmul fast <2 x float> [[A:%.*]], [[A]] ; CHECK-NEXT: [[REASS_MUL:%.*]] = fmul fast <2 x float> [[REASS_MUL2]], [[REASS_ADD1]] ; CHECK-NEXT: ret <2 x float> [[REASS_MUL]] ; %t0 = fmul fast <2 x float> %a, %b %t1 = fmul fast <2 x float> %a, %t0 %t2 = fmul fast <2 x float> %a, %c %t3 = fmul fast <2 x float> %a, %t2 %t4 = fadd fast <2 x float> %t1, %t3 ret <2 x float> %t4 } ; Check that a*a*b+a*a*c is turned into a*(a*(b+c)) - minimum FMF subset version define <2 x float> @test2_reassoc(<2 x float> %a, <2 x float> %b, <2 x float> %c) { ; CHECK-LABEL: @test2_reassoc( ; CHECK-NEXT: [[T0:%.*]] = fmul reassoc <2 x float> [[A:%.*]], [[B:%.*]] ; CHECK-NEXT: [[T1:%.*]] = fmul reassoc <2 x float> [[A]], [[T0]] ; CHECK-NEXT: [[T2:%.*]] = fmul reassoc <2 x float> [[A]], [[C:%.*]] ; CHECK-NEXT: [[T3:%.*]] = fmul reassoc <2 x float> [[A]], [[T2]] ; CHECK-NEXT: [[T4:%.*]] = fadd reassoc <2 x float> [[T1]], [[T3]] ; CHECK-NEXT: ret <2 x float> [[T4]] ; %t0 = fmul reassoc <2 x float> %a, %b %t1 = fmul reassoc <2 x float> %a, %t0 %t2 = fmul reassoc <2 x float> %a, %c %t3 = fmul reassoc <2 x float> %a, %t2 %t4 = fadd reassoc <2 x float> %t1, %t3 ret <2 x float> %t4 } ; Check that a*b+a*c+d is turned into a*(b+c)+d. define <2 x double> @test3(<2 x double> %a, <2 x double> %b, <2 x double> %c, <2 x double> %d) { ; CHECK-LABEL: @test3( ; CHECK-NEXT: [[REASS_ADD:%.*]] = fadd fast <2 x double> [[C:%.*]], [[B:%.*]] ; CHECK-NEXT: [[REASS_MUL:%.*]] = fmul fast <2 x double> [[REASS_ADD]], [[A:%.*]] ; CHECK-NEXT: [[T3:%.*]] = fadd fast <2 x double> [[REASS_MUL]], [[D:%.*]] ; CHECK-NEXT: ret <2 x double> [[T3]] ; %t0 = fmul fast <2 x double> %a, %b %t1 = fmul fast <2 x double> %a, %c %t2 = fadd fast <2 x double> %t1, %d %t3 = fadd fast <2 x double> %t0, %t2 ret <2 x double> %t3 } ; Check that a*b+a*c+d is turned into a*(b+c)+d - minimum FMF subset version define <2 x double> @test3_reassoc(<2 x double> %a, <2 x double> %b, <2 x double> %c, <2 x double> %d) { ; CHECK-LABEL: @test3_reassoc( ; CHECK-NEXT: [[T0:%.*]] = fmul reassoc <2 x double> [[A:%.*]], [[B:%.*]] ; CHECK-NEXT: [[T1:%.*]] = fmul reassoc <2 x double> [[A]], [[C:%.*]] ; CHECK-NEXT: [[T2:%.*]] = fadd reassoc <2 x double> [[T1]], [[D:%.*]] ; CHECK-NEXT: [[T3:%.*]] = fadd reassoc <2 x double> [[T0]], [[T2]] ; CHECK-NEXT: ret <2 x double> [[T3]] ; %t0 = fmul reassoc <2 x double> %a, %b %t1 = fmul reassoc <2 x double> %a, %c %t2 = fadd reassoc <2 x double> %t1, %d %t3 = fadd reassoc <2 x double> %t0, %t2 ret <2 x double> %t3 } ; No fast-math. define <2 x float> @test4(<2 x float> %A) { ; CHECK-LABEL: @test4( ; CHECK-NEXT: [[X:%.*]] = fadd <2 x float> [[A:%.*]], <float 1.000000e+00, float 1.000000e+00> ; CHECK-NEXT: [[Y:%.*]] = fadd <2 x float> [[A]], <float 1.000000e+00, float 1.000000e+00> ; CHECK-NEXT: [[R:%.*]] = fsub <2 x float> [[X]], [[Y]] ; CHECK-NEXT: ret <2 x float> [[R]] ; %X = fadd <2 x float> %A, < float 1.000000e+00, float 1.000000e+00 > %Y = fadd <2 x float> %A, < float 1.000000e+00, float 1.000000e+00 > %R = fsub <2 x float> %X, %Y ret <2 x float> %R } ; Check 47*X + 47*X -> 94*X. define <2 x float> @test5(<2 x float> %X) { ; CHECK-LABEL: @test5( ; CHECK-NEXT: [[FACTOR:%.*]] = fmul fast <2 x float> [[X:%.*]], <float 9.400000e+01, float 9.400000e+01> ; CHECK-NEXT: ret <2 x float> [[FACTOR]] ; %Y = fmul fast <2 x float> %X, <float 4.700000e+01, float 4.700000e+01> %Z = fadd fast <2 x float> %Y, %Y ret <2 x float> %Z } ; Check 47*X + 47*X -> 94*X - minimum FMF subset version define <2 x float> @test5_reassoc(<2 x float> %X) { ; CHECK-LABEL: @test5_reassoc( ; CHECK-NEXT: [[Y:%.*]] = fmul reassoc <2 x float> [[X:%.*]], <float 4.700000e+01, float 4.700000e+01> ; CHECK-NEXT: [[Z:%.*]] = fadd reassoc <2 x float> [[Y]], [[Y]] ; CHECK-NEXT: ret <2 x float> [[Z]] ; %Y = fmul reassoc <2 x float> %X, <float 4.700000e+01, float 4.700000e+01> %Z = fadd reassoc <2 x float> %Y, %Y ret <2 x float> %Z } ; Check X+X+X -> 3*X. define <2 x float> @test6(<2 x float> %X) { ; CHECK-LABEL: @test6( ; CHECK-NEXT: [[FACTOR:%.*]] = fmul fast <2 x float> [[X:%.*]], <float 3.000000e+00, float 3.000000e+00> ; CHECK-NEXT: ret <2 x float> [[FACTOR]] ; %Y = fadd fast <2 x float> %X ,%X %Z = fadd fast <2 x float> %Y, %X ret <2 x float> %Z } ; Check X+X+X -> 3*X - minimum FMF subset version define <2 x float> @test6_reassoc(<2 x float> %X) { ; CHECK-LABEL: @test6_reassoc( ; CHECK-NEXT: [[Y:%.*]] = fadd reassoc <2 x float> [[X:%.*]], [[X]] ; CHECK-NEXT: [[Z:%.*]] = fadd reassoc <2 x float> [[X]], [[Y]] ; CHECK-NEXT: ret <2 x float> [[Z]] ; %Y = fadd reassoc <2 x float> %X ,%X %Z = fadd reassoc <2 x float> %Y, %X ret <2 x float> %Z } ; Check 127*W+50*W -> 177*W. define <2 x double> @test7(<2 x double> %W) { ; CHECK-LABEL: @test7( ; CHECK-NEXT: [[REASS_MUL:%.*]] = fmul fast <2 x double> [[W:%.*]], <double 1.770000e+02, double 1.770000e+02> ; CHECK-NEXT: ret <2 x double> [[REASS_MUL]] ; %X = fmul fast <2 x double> %W, <double 127.0, double 127.0> %Y = fmul fast <2 x double> %W, <double 50.0, double 50.0> %Z = fadd fast <2 x double> %Y, %X ret <2 x double> %Z } ; Check 127*W+50*W -> 177*W - minimum FMF subset version define <2 x double> @test7_reassoc(<2 x double> %W) { ; CHECK-LABEL: @test7_reassoc( ; CHECK-NEXT: [[X:%.*]] = fmul reassoc <2 x double> [[W:%.*]], <double 1.270000e+02, double 1.270000e+02> ; CHECK-NEXT: [[Y:%.*]] = fmul reassoc <2 x double> [[W]], <double 5.000000e+01, double 5.000000e+01> ; CHECK-NEXT: [[Z:%.*]] = fadd reassoc <2 x double> [[Y]], [[X]] ; CHECK-NEXT: ret <2 x double> [[Z]] ; %X = fmul reassoc <2 x double> %W, <double 127.0, double 127.0> %Y = fmul reassoc <2 x double> %W, <double 50.0, double 50.0> %Z = fadd reassoc <2 x double> %Y, %X ret <2 x double> %Z } ; Check X*12*12 -> X*144. define <2 x float> @test8(<2 x float> %arg) { ; CHECK-LABEL: @test8( ; CHECK-NEXT: [[TMP2:%.*]] = fmul fast <2 x float> [[ARG:%.*]], <float 1.440000e+02, float 1.440000e+02> ; CHECK-NEXT: ret <2 x float> [[TMP2]] ; %tmp1 = fmul fast <2 x float> <float 1.200000e+01, float 1.200000e+01>, %arg %tmp2 = fmul fast <2 x float> %tmp1, <float 1.200000e+01, float 1.200000e+01> ret <2 x float> %tmp2 } ; Check X*12*12 -> X*144 - minimum FMF subset version define <2 x float> @test8_reassoc(<2 x float> %arg) { ; CHECK-LABEL: @test8_reassoc( ; CHECK-NEXT: [[TMP1:%.*]] = fmul reassoc <2 x float> [[ARG:%.*]], <float 1.200000e+01, float 1.200000e+01> ; CHECK-NEXT: [[TMP2:%.*]] = fmul reassoc <2 x float> [[TMP1]], <float 1.200000e+01, float 1.200000e+01> ; CHECK-NEXT: ret <2 x float> [[TMP2]] ; %tmp1 = fmul reassoc <2 x float> <float 1.200000e+01, float 1.200000e+01>, %arg %tmp2 = fmul reassoc <2 x float> %tmp1, <float 1.200000e+01, float 1.200000e+01> ret <2 x float> %tmp2 } ; Check (b+(a+1234))+-a -> b+1234. define <2 x double> @test9(<2 x double> %b, <2 x double> %a) { ; CHECK-LABEL: @test9( ; CHECK-NEXT: [[TMP1:%.*]] = fsub fast <2 x double> zeroinitializer, [[A:%.*]] ; CHECK-NEXT: [[TMP2:%.*]] = fadd fast <2 x double> [[B:%.*]], <double 1.234000e+03, double 1.234000e+03> ; CHECK-NEXT: ret <2 x double> [[TMP2]] ; %1 = fadd fast <2 x double> %a, <double 1.234000e+03, double 1.234000e+03> %2 = fadd fast <2 x double> %b, %1 %3 = fsub fast <2 x double> <double 0.000000e+00, double 0.000000e+00>, %a %4 = fadd fast <2 x double> %2, %3 ret <2 x double> %4 } define <2 x double> @test9_unary_fneg(<2 x double> %b, <2 x double> %a) { ; CHECK-LABEL: @test9_unary_fneg( ; CHECK-NEXT: [[TMP1:%.*]] = fneg fast <2 x double> [[A:%.*]] ; CHECK-NEXT: [[TMP2:%.*]] = fadd fast <2 x double> [[B:%.*]], <double 1.234000e+03, double 1.234000e+03> ; CHECK-NEXT: ret <2 x double> [[TMP2]] ; %1 = fadd fast <2 x double> %a, <double 1.234000e+03, double 1.234000e+03> %2 = fadd fast <2 x double> %b, %1 %3 = fneg fast <2 x double> %a %4 = fadd fast <2 x double> %2, %3 ret <2 x double> %4 } ; Check (b+(a+1234))+-a -> b+1234 - minimum FMF subset version define <2 x double> @test9_reassoc(<2 x double> %b, <2 x double> %a) { ; CHECK-LABEL: @test9_reassoc( ; CHECK-NEXT: [[TMP1:%.*]] = fadd reassoc <2 x double> [[A:%.*]], <double 1.234000e+03, double 1.234000e+03> ; CHECK-NEXT: [[TMP2:%.*]] = fadd reassoc <2 x double> [[B:%.*]], [[TMP1]] ; CHECK-NEXT: [[TMP3:%.*]] = fsub reassoc <2 x double> zeroinitializer, [[A]] ; CHECK-NEXT: [[TMP4:%.*]] = fadd reassoc <2 x double> [[TMP3]], [[TMP2]] ; CHECK-NEXT: ret <2 x double> [[TMP4]] ; %1 = fadd reassoc <2 x double> %a, <double 1.234000e+03, double 1.234000e+03> %2 = fadd reassoc <2 x double> %b, %1 %3 = fsub reassoc <2 x double> <double 0.000000e+00, double 0.000000e+00>, %a %4 = fadd reassoc <2 x double> %2, %3 ret <2 x double> %4 } define <2 x double> @test9_reassoc_unary_fneg(<2 x double> %b, <2 x double> %a) { ; CHECK-LABEL: @test9_reassoc_unary_fneg( ; CHECK-NEXT: [[TMP1:%.*]] = fadd reassoc <2 x double> [[A:%.*]], <double 1.234000e+03, double 1.234000e+03> ; CHECK-NEXT: [[TMP2:%.*]] = fadd reassoc <2 x double> [[B:%.*]], [[TMP1]] ; CHECK-NEXT: [[TMP3:%.*]] = fneg reassoc <2 x double> [[A]] ; CHECK-NEXT: [[TMP4:%.*]] = fadd reassoc <2 x double> [[TMP3]], [[TMP2]] ; CHECK-NEXT: ret <2 x double> [[TMP4]] ; %1 = fadd reassoc <2 x double> %a, <double 1.234000e+03, double 1.234000e+03> %2 = fadd reassoc <2 x double> %b, %1 %3 = fneg reassoc <2 x double> %a %4 = fadd reassoc <2 x double> %2, %3 ret <2 x double> %4 } ; Check -(-(z*40)*a) -> a*40*z. define <2 x float> @test10(<2 x float> %a, <2 x float> %b, <2 x float> %z) { ; CHECK-LABEL: @test10( ; CHECK-NEXT: [[C:%.*]] = fmul fast <2 x float> [[A:%.*]], <float 4.000000e+01, float 4.000000e+01> ; CHECK-NEXT: [[E:%.*]] = fmul fast <2 x float> [[C]], [[Z:%.*]] ; CHECK-NEXT: [[TMP1:%.*]] = fadd fast <2 x float> [[E]], zeroinitializer ; CHECK-NEXT: ret <2 x float> [[TMP1]] ; %d = fmul fast <2 x float> %z, <float 4.000000e+01, float 4.000000e+01> %c = fsub fast <2 x float> <float 0.000000e+00, float 0.000000e+00>, %d %e = fmul fast <2 x float> %a, %c %f = fsub fast <2 x float> <float 0.000000e+00, float 0.000000e+00>, %e ret <2 x float> %f } define <2 x float> @test10_unary_fneg(<2 x float> %a, <2 x float> %b, <2 x float> %z) { ; CHECK-LABEL: @test10_unary_fneg( ; CHECK-NEXT: [[E:%.*]] = fmul fast <2 x float> [[A:%.*]], <float 4.000000e+01, float 4.000000e+01> ; CHECK-NEXT: [[F:%.*]] = fmul fast <2 x float> [[E]], [[Z:%.*]] ; CHECK-NEXT: ret <2 x float> [[F]] ; %d = fmul fast <2 x float> %z, <float 4.000000e+01, float 4.000000e+01> %c = fneg fast <2 x float> %d %e = fmul fast <2 x float> %a, %c %f = fneg fast <2 x float> %e ret <2 x float> %f } ; Check -(-(z*40)*a) -> a*40*z - minimum FMF subset version define <2 x float> @test10_reassoc(<2 x float> %a, <2 x float> %b, <2 x float> %z) { ; CHECK-LABEL: @test10_reassoc( ; CHECK-NEXT: [[D:%.*]] = fmul reassoc <2 x float> [[Z:%.*]], <float 4.000000e+01, float 4.000000e+01> ; CHECK-NEXT: [[C:%.*]] = fsub reassoc <2 x float> zeroinitializer, [[D]] ; CHECK-NEXT: [[E:%.*]] = fmul reassoc <2 x float> [[A:%.*]], [[C]] ; CHECK-NEXT: [[F:%.*]] = fsub reassoc <2 x float> zeroinitializer, [[E]] ; CHECK-NEXT: ret <2 x float> [[F]] ; %d = fmul reassoc <2 x float> %z, <float 4.000000e+01, float 4.000000e+01> %c = fsub reassoc <2 x float> <float 0.000000e+00, float 0.000000e+00>, %d %e = fmul reassoc <2 x float> %a, %c %f = fsub reassoc <2 x float> <float 0.000000e+00, float 0.000000e+00>, %e ret <2 x float> %f } define <2 x float> @test10_reassoc_unary_fneg(<2 x float> %a, <2 x float> %b, <2 x float> %z) { ; CHECK-LABEL: @test10_reassoc_unary_fneg( ; CHECK-NEXT: [[D:%.*]] = fmul reassoc <2 x float> [[Z:%.*]], <float 4.000000e+01, float 4.000000e+01> ; CHECK-NEXT: [[C:%.*]] = fneg reassoc <2 x float> [[D]] ; CHECK-NEXT: [[E:%.*]] = fmul reassoc <2 x float> [[A:%.*]], [[C]] ; CHECK-NEXT: [[F:%.*]] = fneg reassoc <2 x float> [[E]] ; CHECK-NEXT: ret <2 x float> [[F]] ; %d = fmul reassoc <2 x float> %z, <float 4.000000e+01, float 4.000000e+01> %c = fneg reassoc <2 x float> %d %e = fmul reassoc <2 x float> %a, %c %f = fneg reassoc <2 x float> %e ret <2 x float> %f } ; Check x*y+y*x -> x*y*2. define <2 x double> @test11(<2 x double> %x, <2 x double> %y) { ; CHECK-LABEL: @test11( ; CHECK-NEXT: [[FACTOR:%.*]] = fmul fast <2 x double> [[Y:%.*]], [[X:%.*]] ; CHECK-NEXT: [[REASS_MUL:%.*]] = fmul fast <2 x double> [[FACTOR]], <double 2.000000e+00, double 2.000000e+00> ; CHECK-NEXT: ret <2 x double> [[REASS_MUL]] ; %1 = fmul fast <2 x double> %x, %y %2 = fmul fast <2 x double> %y, %x %3 = fadd fast <2 x double> %1, %2 ret <2 x double> %3 } ; Check x*y+y*x -> x*y*2 - minimum FMF subset version define <2 x double> @test11_reassoc(<2 x double> %x, <2 x double> %y) { ; CHECK-LABEL: @test11_reassoc( ; CHECK-NEXT: [[TMP1:%.*]] = fmul reassoc <2 x double> [[X:%.*]], [[Y:%.*]] ; CHECK-NEXT: [[TMP2:%.*]] = fmul reassoc <2 x double> [[X]], [[Y]] ; CHECK-NEXT: [[TMP3:%.*]] = fadd reassoc <2 x double> [[TMP1]], [[TMP2]] ; CHECK-NEXT: ret <2 x double> [[TMP3]] ; %1 = fmul reassoc <2 x double> %x, %y %2 = fmul reassoc <2 x double> %y, %x %3 = fadd reassoc <2 x double> %1, %2 ret <2 x double> %3 } ; FIXME: shifts should be converted to mul to assist further reassociation. define <2 x i64> @test12(<2 x i64> %b, <2 x i64> %c) { ; CHECK-LABEL: @test12( ; CHECK-NEXT: [[MUL:%.*]] = mul <2 x i64> [[C:%.*]], [[B:%.*]] ; CHECK-NEXT: [[SHL:%.*]] = shl <2 x i64> [[MUL]], <i64 5, i64 5> ; CHECK-NEXT: ret <2 x i64> [[SHL]] ; %mul = mul <2 x i64> %c, %b %shl = shl <2 x i64> %mul, <i64 5, i64 5> ret <2 x i64> %shl } ; (-5*b)+a -> a-(5*b) define <4 x float> @test13(<4 x float> %a, <4 x float> %b) { ; CHECK-LABEL: @test13( ; CHECK-NEXT: [[MUL:%.*]] = fmul fast <4 x float> [[B:%.*]], <float 5.000000e+00, float 5.000000e+00, float 5.000000e+00, float 5.000000e+00> ; CHECK-NEXT: [[TMP1:%.*]] = fsub fast <4 x float> [[A:%.*]], [[MUL]] ; CHECK-NEXT: ret <4 x float> [[TMP1]] ; %mul = fmul fast <4 x float> <float -5.000000e+00, float -5.000000e+00, float -5.000000e+00, float -5.000000e+00>, %b %add = fadd fast <4 x float> %mul, %a ret <4 x float> %add } ; Break up subtract to assist further reassociation. ; Check a+b-c -> a+b+-c. define <2 x i64> @test14(<2 x i64> %a, <2 x i64> %b, <2 x i64> %c) { ; CHECK-LABEL: @test14( ; CHECK-NEXT: [[ADD:%.*]] = add <2 x i64> [[B:%.*]], [[A:%.*]] ; CHECK-NEXT: [[C_NEG:%.*]] = sub <2 x i64> zeroinitializer, [[C:%.*]] ; CHECK-NEXT: [[SUB:%.*]] = add <2 x i64> [[ADD]], [[C_NEG]] ; CHECK-NEXT: ret <2 x i64> [[SUB]] ; %add = add <2 x i64> %b, %a %sub = sub <2 x i64> %add, %c ret <2 x i64> %sub } define <2 x i32> @test15(<2 x i32> %x, <2 x i32> %y) { ; CHECK-LABEL: @test15( ; CHECK-NEXT: [[TMP3:%.*]] = and <2 x i32> [[Y:%.*]], [[X:%.*]] ; CHECK-NEXT: ret <2 x i32> [[TMP3]] ; %tmp1 = and <2 x i32> %x, %y %tmp2 = and <2 x i32> %y, %x %tmp3 = and <2 x i32> %tmp1, %tmp2 ret <2 x i32> %tmp3 } define <2 x i32> @test16(<2 x i32> %x, <2 x i32> %y) { ; CHECK-LABEL: @test16( ; CHECK-NEXT: [[TMP3:%.*]] = or <2 x i32> [[Y:%.*]], [[X:%.*]] ; CHECK-NEXT: ret <2 x i32> [[TMP3]] ; %tmp1 = or <2 x i32> %x, %y %tmp2 = or <2 x i32> %y, %x %tmp3 = or <2 x i32> %tmp1, %tmp2 ret <2 x i32> %tmp3 } define <2 x i32> @test17(<2 x i32> %x, <2 x i32> %y) { ; CHECK-LABEL: @test17( ; CHECK-NEXT: ret <2 x i32> zeroinitializer ; %tmp1 = xor <2 x i32> %x, %y %tmp2 = xor <2 x i32> %y, %x %tmp3 = xor <2 x i32> %tmp1, %tmp2 ret <2 x i32> %tmp3 } define <2 x i32> @test18(<2 x i32> %x, <2 x i32> %y) { ; CHECK-LABEL: @test18( ; CHECK-NEXT: [[TMP5:%.*]] = xor <2 x i32> [[Y:%.*]], [[X:%.*]] ; CHECK-NEXT: ret <2 x i32> [[TMP5]] ; %tmp1 = xor <2 x i32> %x, %y %tmp2 = xor <2 x i32> %y, %x %tmp3 = xor <2 x i32> %x, %y %tmp4 = xor <2 x i32> %tmp1, %tmp2 %tmp5 = xor <2 x i32> %tmp4, %tmp3 ret <2 x i32> %tmp5 }