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1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py2; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=cmov | FileCheck %s --check-prefixes=X86,X86-NOSSE3; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=+sse2 | FileCheck %s --check-prefixes=X86,X86-SSE24 5; This tests codegen time inlining/optimization of memcmp6; rdar://64803987 8@.str = private constant [65 x i8] c"0123456789012345678901234567890123456789012345678901234567890123\00", align 19 10declare dso_local i32 @memcmp(ptr, ptr, i32)11declare dso_local i32 @bcmp(ptr, ptr, i32)12 13define i32 @length2(ptr %X, ptr %Y) nounwind optsize {14; X86-LABEL: length2:15; X86: # %bb.0:16; X86-NEXT: movl {{[0-9]+}}(%esp), %eax17; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx18; X86-NEXT: movzwl (%ecx), %ecx19; X86-NEXT: movzwl (%eax), %edx20; X86-NEXT: rolw $8, %cx21; X86-NEXT: rolw $8, %dx22; X86-NEXT: movzwl %cx, %eax23; X86-NEXT: movzwl %dx, %ecx24; X86-NEXT: subl %ecx, %eax25; X86-NEXT: retl26 %m = tail call i32 @memcmp(ptr %X, ptr %Y, i32 2) nounwind27 ret i32 %m28}29 30define i1 @length2_eq(ptr %X, ptr %Y) nounwind optsize {31; X86-LABEL: length2_eq:32; X86: # %bb.0:33; X86-NEXT: movl {{[0-9]+}}(%esp), %eax34; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx35; X86-NEXT: movzwl (%ecx), %ecx36; X86-NEXT: cmpw (%eax), %cx37; X86-NEXT: sete %al38; X86-NEXT: retl39 %m = tail call i32 @memcmp(ptr %X, ptr %Y, i32 2) nounwind40 %c = icmp eq i32 %m, 041 ret i1 %c42}43 44define i1 @length2_eq_const(ptr %X) nounwind optsize {45; X86-LABEL: length2_eq_const:46; X86: # %bb.0:47; X86-NEXT: movl {{[0-9]+}}(%esp), %eax48; X86-NEXT: cmpw $12849, (%eax) # imm = 0x323149; X86-NEXT: setne %al50; X86-NEXT: retl51 %m = tail call i32 @memcmp(ptr %X, ptr getelementptr inbounds ([65 x i8], ptr @.str, i32 0, i32 1), i32 2) nounwind52 %c = icmp ne i32 %m, 053 ret i1 %c54}55 56define i1 @length2_eq_nobuiltin_attr(ptr %X, ptr %Y) nounwind optsize {57; X86-LABEL: length2_eq_nobuiltin_attr:58; X86: # %bb.0:59; X86-NEXT: pushl $260; X86-NEXT: pushl {{[0-9]+}}(%esp)61; X86-NEXT: pushl {{[0-9]+}}(%esp)62; X86-NEXT: calll memcmp63; X86-NEXT: addl $12, %esp64; X86-NEXT: testl %eax, %eax65; X86-NEXT: sete %al66; X86-NEXT: retl67 %m = tail call i32 @memcmp(ptr %X, ptr %Y, i32 2) nounwind nobuiltin68 %c = icmp eq i32 %m, 069 ret i1 %c70}71 72define i32 @length3(ptr %X, ptr %Y) nounwind optsize {73; X86-LABEL: length3:74; X86: # %bb.0:75; X86-NEXT: pushl %esi76; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx77; X86-NEXT: movl {{[0-9]+}}(%esp), %eax78; X86-NEXT: movzwl (%eax), %edx79; X86-NEXT: movzwl (%ecx), %esi80; X86-NEXT: rolw $8, %dx81; X86-NEXT: rolw $8, %si82; X86-NEXT: cmpw %si, %dx83; X86-NEXT: jne .LBB4_384; X86-NEXT: # %bb.1: # %loadbb185; X86-NEXT: movzbl 2(%eax), %eax86; X86-NEXT: movzbl 2(%ecx), %ecx87; X86-NEXT: subl %ecx, %eax88; X86-NEXT: jmp .LBB4_289; X86-NEXT: .LBB4_3: # %res_block90; X86-NEXT: setae %al91; X86-NEXT: movzbl %al, %eax92; X86-NEXT: leal -1(%eax,%eax), %eax93; X86-NEXT: .LBB4_2: # %endblock94; X86-NEXT: popl %esi95; X86-NEXT: retl96 %m = tail call i32 @memcmp(ptr %X, ptr %Y, i32 3) nounwind97 ret i32 %m98}99 100define i1 @length3_eq(ptr %X, ptr %Y) nounwind optsize {101; X86-LABEL: length3_eq:102; X86: # %bb.0:103; X86-NEXT: movl {{[0-9]+}}(%esp), %eax104; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx105; X86-NEXT: movzwl (%ecx), %edx106; X86-NEXT: xorw (%eax), %dx107; X86-NEXT: movb 2(%ecx), %cl108; X86-NEXT: xorb 2(%eax), %cl109; X86-NEXT: movzbl %cl, %eax110; X86-NEXT: orw %dx, %ax111; X86-NEXT: setne %al112; X86-NEXT: retl113 %m = tail call i32 @memcmp(ptr %X, ptr %Y, i32 3) nounwind114 %c = icmp ne i32 %m, 0115 ret i1 %c116}117 118define i32 @length4(ptr %X, ptr %Y) nounwind optsize {119; X86-LABEL: length4:120; X86: # %bb.0:121; X86-NEXT: movl {{[0-9]+}}(%esp), %eax122; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx123; X86-NEXT: movl (%ecx), %ecx124; X86-NEXT: movl (%eax), %eax125; X86-NEXT: bswapl %ecx126; X86-NEXT: bswapl %eax127; X86-NEXT: cmpl %eax, %ecx128; X86-NEXT: seta %al129; X86-NEXT: sbbb $0, %al130; X86-NEXT: movsbl %al, %eax131; X86-NEXT: retl132 %m = tail call i32 @memcmp(ptr %X, ptr %Y, i32 4) nounwind133 ret i32 %m134}135 136define i1 @length4_eq(ptr %X, ptr %Y) nounwind optsize {137; X86-LABEL: length4_eq:138; X86: # %bb.0:139; X86-NEXT: movl {{[0-9]+}}(%esp), %eax140; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx141; X86-NEXT: movl (%ecx), %ecx142; X86-NEXT: cmpl (%eax), %ecx143; X86-NEXT: setne %al144; X86-NEXT: retl145 %m = tail call i32 @memcmp(ptr %X, ptr %Y, i32 4) nounwind146 %c = icmp ne i32 %m, 0147 ret i1 %c148}149 150define i1 @length4_eq_const(ptr %X) nounwind optsize {151; X86-LABEL: length4_eq_const:152; X86: # %bb.0:153; X86-NEXT: movl {{[0-9]+}}(%esp), %eax154; X86-NEXT: cmpl $875770417, (%eax) # imm = 0x34333231155; X86-NEXT: sete %al156; X86-NEXT: retl157 %m = tail call i32 @memcmp(ptr %X, ptr getelementptr inbounds ([65 x i8], ptr @.str, i32 0, i32 1), i32 4) nounwind158 %c = icmp eq i32 %m, 0159 ret i1 %c160}161 162define i32 @length5(ptr %X, ptr %Y) nounwind optsize {163; X86-LABEL: length5:164; X86: # %bb.0:165; X86-NEXT: pushl %esi166; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx167; X86-NEXT: movl {{[0-9]+}}(%esp), %eax168; X86-NEXT: movl (%eax), %edx169; X86-NEXT: movl (%ecx), %esi170; X86-NEXT: bswapl %edx171; X86-NEXT: bswapl %esi172; X86-NEXT: cmpl %esi, %edx173; X86-NEXT: jne .LBB9_3174; X86-NEXT: # %bb.1: # %loadbb1175; X86-NEXT: movzbl 4(%eax), %eax176; X86-NEXT: movzbl 4(%ecx), %ecx177; X86-NEXT: subl %ecx, %eax178; X86-NEXT: jmp .LBB9_2179; X86-NEXT: .LBB9_3: # %res_block180; X86-NEXT: setae %al181; X86-NEXT: movzbl %al, %eax182; X86-NEXT: leal -1(%eax,%eax), %eax183; X86-NEXT: .LBB9_2: # %endblock184; X86-NEXT: popl %esi185; X86-NEXT: retl186 %m = tail call i32 @memcmp(ptr %X, ptr %Y, i32 5) nounwind187 ret i32 %m188}189 190define i1 @length5_eq(ptr %X, ptr %Y) nounwind optsize {191; X86-LABEL: length5_eq:192; X86: # %bb.0:193; X86-NEXT: movl {{[0-9]+}}(%esp), %eax194; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx195; X86-NEXT: movl (%ecx), %edx196; X86-NEXT: xorl (%eax), %edx197; X86-NEXT: movb 4(%ecx), %cl198; X86-NEXT: xorb 4(%eax), %cl199; X86-NEXT: movzbl %cl, %eax200; X86-NEXT: orl %edx, %eax201; X86-NEXT: setne %al202; X86-NEXT: retl203 %m = tail call i32 @memcmp(ptr %X, ptr %Y, i32 5) nounwind204 %c = icmp ne i32 %m, 0205 ret i1 %c206}207 208define i32 @length8(ptr %X, ptr %Y) nounwind optsize {209; X86-LABEL: length8:210; X86: # %bb.0:211; X86-NEXT: pushl %esi212; X86-NEXT: movl {{[0-9]+}}(%esp), %eax213; X86-NEXT: movl {{[0-9]+}}(%esp), %esi214; X86-NEXT: movl (%esi), %ecx215; X86-NEXT: movl (%eax), %edx216; X86-NEXT: bswapl %ecx217; X86-NEXT: bswapl %edx218; X86-NEXT: cmpl %edx, %ecx219; X86-NEXT: jne .LBB11_2220; X86-NEXT: # %bb.1: # %loadbb1221; X86-NEXT: movl 4(%esi), %ecx222; X86-NEXT: movl 4(%eax), %edx223; X86-NEXT: bswapl %ecx224; X86-NEXT: bswapl %edx225; X86-NEXT: xorl %eax, %eax226; X86-NEXT: cmpl %edx, %ecx227; X86-NEXT: je .LBB11_3228; X86-NEXT: .LBB11_2: # %res_block229; X86-NEXT: xorl %eax, %eax230; X86-NEXT: cmpl %edx, %ecx231; X86-NEXT: setae %al232; X86-NEXT: leal -1(%eax,%eax), %eax233; X86-NEXT: .LBB11_3: # %endblock234; X86-NEXT: popl %esi235; X86-NEXT: retl236 %m = tail call i32 @memcmp(ptr %X, ptr %Y, i32 8) nounwind237 ret i32 %m238}239 240define i1 @length8_eq(ptr %X, ptr %Y) nounwind optsize {241; X86-LABEL: length8_eq:242; X86: # %bb.0:243; X86-NEXT: movl {{[0-9]+}}(%esp), %eax244; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx245; X86-NEXT: movl (%ecx), %edx246; X86-NEXT: movl 4(%ecx), %ecx247; X86-NEXT: xorl (%eax), %edx248; X86-NEXT: xorl 4(%eax), %ecx249; X86-NEXT: orl %edx, %ecx250; X86-NEXT: sete %al251; X86-NEXT: retl252 %m = tail call i32 @memcmp(ptr %X, ptr %Y, i32 8) nounwind253 %c = icmp eq i32 %m, 0254 ret i1 %c255}256 257define i1 @length8_eq_const(ptr %X) nounwind optsize {258; X86-LABEL: length8_eq_const:259; X86: # %bb.0:260; X86-NEXT: movl {{[0-9]+}}(%esp), %eax261; X86-NEXT: movl $858927408, %ecx # imm = 0x33323130262; X86-NEXT: xorl (%eax), %ecx263; X86-NEXT: movl $926299444, %edx # imm = 0x37363534264; X86-NEXT: xorl 4(%eax), %edx265; X86-NEXT: orl %ecx, %edx266; X86-NEXT: setne %al267; X86-NEXT: retl268 %m = tail call i32 @memcmp(ptr %X, ptr @.str, i32 8) nounwind269 %c = icmp ne i32 %m, 0270 ret i1 %c271}272 273define i1 @length12_eq(ptr %X, ptr %Y) nounwind optsize {274; X86-LABEL: length12_eq:275; X86: # %bb.0:276; X86-NEXT: pushl $12277; X86-NEXT: pushl {{[0-9]+}}(%esp)278; X86-NEXT: pushl {{[0-9]+}}(%esp)279; X86-NEXT: calll memcmp280; X86-NEXT: addl $12, %esp281; X86-NEXT: testl %eax, %eax282; X86-NEXT: setne %al283; X86-NEXT: retl284 %m = tail call i32 @memcmp(ptr %X, ptr %Y, i32 12) nounwind285 %c = icmp ne i32 %m, 0286 ret i1 %c287}288 289define i32 @length12(ptr %X, ptr %Y) nounwind optsize {290; X86-LABEL: length12:291; X86: # %bb.0:292; X86-NEXT: pushl $12293; X86-NEXT: pushl {{[0-9]+}}(%esp)294; X86-NEXT: pushl {{[0-9]+}}(%esp)295; X86-NEXT: calll memcmp296; X86-NEXT: addl $12, %esp297; X86-NEXT: retl298 %m = tail call i32 @memcmp(ptr %X, ptr %Y, i32 12) nounwind299 ret i32 %m300}301 302; PR33329 - https://bugs.llvm.org/show_bug.cgi?id=33329303 304define i32 @length16(ptr %X, ptr %Y) nounwind optsize {305; X86-LABEL: length16:306; X86: # %bb.0:307; X86-NEXT: pushl $16308; X86-NEXT: pushl {{[0-9]+}}(%esp)309; X86-NEXT: pushl {{[0-9]+}}(%esp)310; X86-NEXT: calll memcmp311; X86-NEXT: addl $12, %esp312; X86-NEXT: retl313 %m = tail call i32 @memcmp(ptr %X, ptr %Y, i32 16) nounwind314 ret i32 %m315}316 317define i1 @length16_eq(ptr %x, ptr %y) nounwind optsize {318; X86-NOSSE-LABEL: length16_eq:319; X86-NOSSE: # %bb.0:320; X86-NOSSE-NEXT: pushl $16321; X86-NOSSE-NEXT: pushl {{[0-9]+}}(%esp)322; X86-NOSSE-NEXT: pushl {{[0-9]+}}(%esp)323; X86-NOSSE-NEXT: calll memcmp324; X86-NOSSE-NEXT: addl $12, %esp325; X86-NOSSE-NEXT: testl %eax, %eax326; X86-NOSSE-NEXT: setne %al327; X86-NOSSE-NEXT: retl328;329; X86-SSE2-LABEL: length16_eq:330; X86-SSE2: # %bb.0:331; X86-SSE2-NEXT: movl {{[0-9]+}}(%esp), %eax332; X86-SSE2-NEXT: movl {{[0-9]+}}(%esp), %ecx333; X86-SSE2-NEXT: movdqu (%ecx), %xmm0334; X86-SSE2-NEXT: movdqu (%eax), %xmm1335; X86-SSE2-NEXT: pcmpeqb %xmm0, %xmm1336; X86-SSE2-NEXT: pmovmskb %xmm1, %eax337; X86-SSE2-NEXT: cmpl $65535, %eax # imm = 0xFFFF338; X86-SSE2-NEXT: setne %al339; X86-SSE2-NEXT: retl340 %call = tail call i32 @memcmp(ptr %x, ptr %y, i32 16) nounwind341 %cmp = icmp ne i32 %call, 0342 ret i1 %cmp343}344 345define i1 @length16_eq_const(ptr %X) nounwind optsize {346; X86-NOSSE-LABEL: length16_eq_const:347; X86-NOSSE: # %bb.0:348; X86-NOSSE-NEXT: pushl $16349; X86-NOSSE-NEXT: pushl $.L.str350; X86-NOSSE-NEXT: pushl {{[0-9]+}}(%esp)351; X86-NOSSE-NEXT: calll memcmp352; X86-NOSSE-NEXT: addl $12, %esp353; X86-NOSSE-NEXT: testl %eax, %eax354; X86-NOSSE-NEXT: sete %al355; X86-NOSSE-NEXT: retl356;357; X86-SSE2-LABEL: length16_eq_const:358; X86-SSE2: # %bb.0:359; X86-SSE2-NEXT: movl {{[0-9]+}}(%esp), %eax360; X86-SSE2-NEXT: movdqu (%eax), %xmm0361; X86-SSE2-NEXT: pcmpeqb {{\.?LCPI[0-9]+_[0-9]+}}, %xmm0362; X86-SSE2-NEXT: pmovmskb %xmm0, %eax363; X86-SSE2-NEXT: cmpl $65535, %eax # imm = 0xFFFF364; X86-SSE2-NEXT: sete %al365; X86-SSE2-NEXT: retl366 %m = tail call i32 @memcmp(ptr %X, ptr @.str, i32 16) nounwind367 %c = icmp eq i32 %m, 0368 ret i1 %c369}370 371; PR33914 - https://bugs.llvm.org/show_bug.cgi?id=33914372 373define i32 @length24(ptr %X, ptr %Y) nounwind optsize {374; X86-LABEL: length24:375; X86: # %bb.0:376; X86-NEXT: pushl $24377; X86-NEXT: pushl {{[0-9]+}}(%esp)378; X86-NEXT: pushl {{[0-9]+}}(%esp)379; X86-NEXT: calll memcmp380; X86-NEXT: addl $12, %esp381; X86-NEXT: retl382 %m = tail call i32 @memcmp(ptr %X, ptr %Y, i32 24) nounwind383 ret i32 %m384}385 386define i1 @length24_eq(ptr %x, ptr %y) nounwind optsize {387; X86-NOSSE-LABEL: length24_eq:388; X86-NOSSE: # %bb.0:389; X86-NOSSE-NEXT: pushl $24390; X86-NOSSE-NEXT: pushl {{[0-9]+}}(%esp)391; X86-NOSSE-NEXT: pushl {{[0-9]+}}(%esp)392; X86-NOSSE-NEXT: calll memcmp393; X86-NOSSE-NEXT: addl $12, %esp394; X86-NOSSE-NEXT: testl %eax, %eax395; X86-NOSSE-NEXT: sete %al396; X86-NOSSE-NEXT: retl397;398; X86-SSE2-LABEL: length24_eq:399; X86-SSE2: # %bb.0:400; X86-SSE2-NEXT: movl {{[0-9]+}}(%esp), %eax401; X86-SSE2-NEXT: movl {{[0-9]+}}(%esp), %ecx402; X86-SSE2-NEXT: movdqu (%ecx), %xmm0403; X86-SSE2-NEXT: movdqu 8(%ecx), %xmm1404; X86-SSE2-NEXT: movdqu (%eax), %xmm2405; X86-SSE2-NEXT: pcmpeqb %xmm0, %xmm2406; X86-SSE2-NEXT: movdqu 8(%eax), %xmm0407; X86-SSE2-NEXT: pcmpeqb %xmm1, %xmm0408; X86-SSE2-NEXT: pand %xmm2, %xmm0409; X86-SSE2-NEXT: pmovmskb %xmm0, %eax410; X86-SSE2-NEXT: cmpl $65535, %eax # imm = 0xFFFF411; X86-SSE2-NEXT: sete %al412; X86-SSE2-NEXT: retl413 %call = tail call i32 @memcmp(ptr %x, ptr %y, i32 24) nounwind414 %cmp = icmp eq i32 %call, 0415 ret i1 %cmp416}417 418define i1 @length24_eq_const(ptr %X) nounwind optsize {419; X86-NOSSE-LABEL: length24_eq_const:420; X86-NOSSE: # %bb.0:421; X86-NOSSE-NEXT: pushl $24422; X86-NOSSE-NEXT: pushl $.L.str423; X86-NOSSE-NEXT: pushl {{[0-9]+}}(%esp)424; X86-NOSSE-NEXT: calll memcmp425; X86-NOSSE-NEXT: addl $12, %esp426; X86-NOSSE-NEXT: testl %eax, %eax427; X86-NOSSE-NEXT: setne %al428; X86-NOSSE-NEXT: retl429;430; X86-SSE2-LABEL: length24_eq_const:431; X86-SSE2: # %bb.0:432; X86-SSE2-NEXT: movl {{[0-9]+}}(%esp), %eax433; X86-SSE2-NEXT: movdqu (%eax), %xmm0434; X86-SSE2-NEXT: movdqu 8(%eax), %xmm1435; X86-SSE2-NEXT: pcmpeqb {{\.?LCPI[0-9]+_[0-9]+}}, %xmm1436; X86-SSE2-NEXT: pcmpeqb {{\.?LCPI[0-9]+_[0-9]+}}, %xmm0437; X86-SSE2-NEXT: pand %xmm1, %xmm0438; X86-SSE2-NEXT: pmovmskb %xmm0, %eax439; X86-SSE2-NEXT: cmpl $65535, %eax # imm = 0xFFFF440; X86-SSE2-NEXT: setne %al441; X86-SSE2-NEXT: retl442 %m = tail call i32 @memcmp(ptr %X, ptr @.str, i32 24) nounwind443 %c = icmp ne i32 %m, 0444 ret i1 %c445}446 447define i32 @length32(ptr %X, ptr %Y) nounwind optsize {448; X86-LABEL: length32:449; X86: # %bb.0:450; X86-NEXT: pushl $32451; X86-NEXT: pushl {{[0-9]+}}(%esp)452; X86-NEXT: pushl {{[0-9]+}}(%esp)453; X86-NEXT: calll memcmp454; X86-NEXT: addl $12, %esp455; X86-NEXT: retl456 %m = tail call i32 @memcmp(ptr %X, ptr %Y, i32 32) nounwind457 ret i32 %m458}459 460; PR33325 - https://bugs.llvm.org/show_bug.cgi?id=33325461 462define i1 @length32_eq(ptr %x, ptr %y) nounwind optsize {463; X86-NOSSE-LABEL: length32_eq:464; X86-NOSSE: # %bb.0:465; X86-NOSSE-NEXT: pushl $32466; X86-NOSSE-NEXT: pushl {{[0-9]+}}(%esp)467; X86-NOSSE-NEXT: pushl {{[0-9]+}}(%esp)468; X86-NOSSE-NEXT: calll memcmp469; X86-NOSSE-NEXT: addl $12, %esp470; X86-NOSSE-NEXT: testl %eax, %eax471; X86-NOSSE-NEXT: sete %al472; X86-NOSSE-NEXT: retl473;474; X86-SSE2-LABEL: length32_eq:475; X86-SSE2: # %bb.0:476; X86-SSE2-NEXT: movl {{[0-9]+}}(%esp), %eax477; X86-SSE2-NEXT: movl {{[0-9]+}}(%esp), %ecx478; X86-SSE2-NEXT: movdqu (%ecx), %xmm0479; X86-SSE2-NEXT: movdqu 16(%ecx), %xmm1480; X86-SSE2-NEXT: movdqu (%eax), %xmm2481; X86-SSE2-NEXT: pcmpeqb %xmm0, %xmm2482; X86-SSE2-NEXT: movdqu 16(%eax), %xmm0483; X86-SSE2-NEXT: pcmpeqb %xmm1, %xmm0484; X86-SSE2-NEXT: pand %xmm2, %xmm0485; X86-SSE2-NEXT: pmovmskb %xmm0, %eax486; X86-SSE2-NEXT: cmpl $65535, %eax # imm = 0xFFFF487; X86-SSE2-NEXT: sete %al488; X86-SSE2-NEXT: retl489 %call = tail call i32 @memcmp(ptr %x, ptr %y, i32 32) nounwind490 %cmp = icmp eq i32 %call, 0491 ret i1 %cmp492}493 494define i1 @length32_eq_const(ptr %X) nounwind optsize {495; X86-NOSSE-LABEL: length32_eq_const:496; X86-NOSSE: # %bb.0:497; X86-NOSSE-NEXT: pushl $32498; X86-NOSSE-NEXT: pushl $.L.str499; X86-NOSSE-NEXT: pushl {{[0-9]+}}(%esp)500; X86-NOSSE-NEXT: calll memcmp501; X86-NOSSE-NEXT: addl $12, %esp502; X86-NOSSE-NEXT: testl %eax, %eax503; X86-NOSSE-NEXT: setne %al504; X86-NOSSE-NEXT: retl505;506; X86-SSE2-LABEL: length32_eq_const:507; X86-SSE2: # %bb.0:508; X86-SSE2-NEXT: movl {{[0-9]+}}(%esp), %eax509; X86-SSE2-NEXT: movdqu (%eax), %xmm0510; X86-SSE2-NEXT: movdqu 16(%eax), %xmm1511; X86-SSE2-NEXT: pcmpeqb {{\.?LCPI[0-9]+_[0-9]+}}, %xmm1512; X86-SSE2-NEXT: pcmpeqb {{\.?LCPI[0-9]+_[0-9]+}}, %xmm0513; X86-SSE2-NEXT: pand %xmm1, %xmm0514; X86-SSE2-NEXT: pmovmskb %xmm0, %eax515; X86-SSE2-NEXT: cmpl $65535, %eax # imm = 0xFFFF516; X86-SSE2-NEXT: setne %al517; X86-SSE2-NEXT: retl518 %m = tail call i32 @memcmp(ptr %X, ptr @.str, i32 32) nounwind519 %c = icmp ne i32 %m, 0520 ret i1 %c521}522 523define i32 @length64(ptr %X, ptr %Y) nounwind optsize {524; X86-LABEL: length64:525; X86: # %bb.0:526; X86-NEXT: pushl $64527; X86-NEXT: pushl {{[0-9]+}}(%esp)528; X86-NEXT: pushl {{[0-9]+}}(%esp)529; X86-NEXT: calll memcmp530; X86-NEXT: addl $12, %esp531; X86-NEXT: retl532 %m = tail call i32 @memcmp(ptr %X, ptr %Y, i32 64) nounwind533 ret i32 %m534}535 536define i1 @length64_eq(ptr %x, ptr %y) nounwind optsize {537; X86-LABEL: length64_eq:538; X86: # %bb.0:539; X86-NEXT: pushl $64540; X86-NEXT: pushl {{[0-9]+}}(%esp)541; X86-NEXT: pushl {{[0-9]+}}(%esp)542; X86-NEXT: calll memcmp543; X86-NEXT: addl $12, %esp544; X86-NEXT: testl %eax, %eax545; X86-NEXT: setne %al546; X86-NEXT: retl547 %call = tail call i32 @memcmp(ptr %x, ptr %y, i32 64) nounwind548 %cmp = icmp ne i32 %call, 0549 ret i1 %cmp550}551 552define i1 @length64_eq_const(ptr %X) nounwind optsize {553; X86-LABEL: length64_eq_const:554; X86: # %bb.0:555; X86-NEXT: pushl $64556; X86-NEXT: pushl $.L.str557; X86-NEXT: pushl {{[0-9]+}}(%esp)558; X86-NEXT: calll memcmp559; X86-NEXT: addl $12, %esp560; X86-NEXT: testl %eax, %eax561; X86-NEXT: sete %al562; X86-NEXT: retl563 %m = tail call i32 @memcmp(ptr %X, ptr @.str, i32 64) nounwind564 %c = icmp eq i32 %m, 0565 ret i1 %c566}567 568define i32 @bcmp_length2(ptr %X, ptr %Y) nounwind optsize {569; X86-LABEL: bcmp_length2:570; X86: # %bb.0:571; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx572; X86-NEXT: movl {{[0-9]+}}(%esp), %eax573; X86-NEXT: movzwl (%eax), %edx574; X86-NEXT: xorl %eax, %eax575; X86-NEXT: cmpw (%ecx), %dx576; X86-NEXT: setne %al577; X86-NEXT: retl578 %m = tail call i32 @bcmp(ptr %X, ptr %Y, i32 2) nounwind579 ret i32 %m580}581