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llvm-project/llvm/test/CodeGen/X86/memcmp-minsize.ll

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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s --check-prefix=X64 --check-prefix=X64-SSE2
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=avx | FileCheck %s --check-prefix=X64 --check-prefix=X64-AVX --check-prefix=X64-AVX1
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=avx2 | FileCheck %s --check-prefix=X64 --check-prefix=X64-AVX --check-prefix=X64-AVX2
; This tests codegen time inlining/optimization of memcmp
; rdar://6480398
@.str = private constant [65 x i8] c"0123456789012345678901234567890123456789012345678901234567890123\00", align 1
declare dso_local i32 @memcmp(i8*, i8*, i64)
define i32 @length2(i8* %X, i8* %Y) nounwind minsize {
; X64-LABEL: length2:
; X64: # %bb.0:
; X64-NEXT: pushq $2
; X64-NEXT: popq %rdx
; X64-NEXT: jmp memcmp # TAILCALL
%m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 2) nounwind
ret i32 %m
}
define i1 @length2_eq(i8* %X, i8* %Y) nounwind minsize {
; X64-LABEL: length2_eq:
; X64: # %bb.0:
; X64-NEXT: movzwl (%rdi), %eax
; X64-NEXT: cmpw (%rsi), %ax
; X64-NEXT: sete %al
; X64-NEXT: retq
%m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 2) nounwind
%c = icmp eq i32 %m, 0
ret i1 %c
}
define i1 @length2_eq_const(i8* %X) nounwind minsize {
; X64-LABEL: length2_eq_const:
; X64: # %bb.0:
; X64-NEXT: cmpw $12849, (%rdi) # imm = 0x3231
; X64-NEXT: setne %al
; X64-NEXT: retq
%m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 1), i64 2) nounwind
%c = icmp ne i32 %m, 0
ret i1 %c
}
define i1 @length2_eq_nobuiltin_attr(i8* %X, i8* %Y) nounwind minsize {
; X64-LABEL: length2_eq_nobuiltin_attr:
; X64: # %bb.0:
; X64-NEXT: pushq %rax
; X64-NEXT: pushq $2
; X64-NEXT: popq %rdx
; X64-NEXT: callq memcmp
; X64-NEXT: testl %eax, %eax
; X64-NEXT: sete %al
; X64-NEXT: popq %rcx
; X64-NEXT: retq
%m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 2) nounwind nobuiltin
%c = icmp eq i32 %m, 0
ret i1 %c
}
define i32 @length3(i8* %X, i8* %Y) nounwind minsize {
; X64-LABEL: length3:
; X64: # %bb.0:
; X64-NEXT: pushq $3
; X64-NEXT: popq %rdx
; X64-NEXT: jmp memcmp # TAILCALL
%m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 3) nounwind
ret i32 %m
}
define i1 @length3_eq(i8* %X, i8* %Y) nounwind minsize {
; X64-LABEL: length3_eq:
; X64: # %bb.0:
; X64-NEXT: pushq %rax
; X64-NEXT: pushq $3
; X64-NEXT: popq %rdx
; X64-NEXT: callq memcmp
; X64-NEXT: testl %eax, %eax
; X64-NEXT: setne %al
; X64-NEXT: popq %rcx
; X64-NEXT: retq
%m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 3) nounwind
%c = icmp ne i32 %m, 0
ret i1 %c
}
define i32 @length4(i8* %X, i8* %Y) nounwind minsize {
; X64-LABEL: length4:
; X64: # %bb.0:
; X64-NEXT: pushq $4
; X64-NEXT: popq %rdx
; X64-NEXT: jmp memcmp # TAILCALL
%m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 4) nounwind
ret i32 %m
}
define i1 @length4_eq(i8* %X, i8* %Y) nounwind minsize {
; X64-LABEL: length4_eq:
; X64: # %bb.0:
; X64-NEXT: movl (%rdi), %eax
; X64-NEXT: cmpl (%rsi), %eax
; X64-NEXT: setne %al
; X64-NEXT: retq
%m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 4) nounwind
%c = icmp ne i32 %m, 0
ret i1 %c
}
define i1 @length4_eq_const(i8* %X) nounwind minsize {
; X64-LABEL: length4_eq_const:
; X64: # %bb.0:
; X64-NEXT: cmpl $875770417, (%rdi) # imm = 0x34333231
; X64-NEXT: sete %al
; X64-NEXT: retq
%m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 1), i64 4) nounwind
%c = icmp eq i32 %m, 0
ret i1 %c
}
define i32 @length5(i8* %X, i8* %Y) nounwind minsize {
; X64-LABEL: length5:
; X64: # %bb.0:
; X64-NEXT: pushq $5
; X64-NEXT: popq %rdx
; X64-NEXT: jmp memcmp # TAILCALL
%m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 5) nounwind
ret i32 %m
}
define i1 @length5_eq(i8* %X, i8* %Y) nounwind minsize {
; X64-LABEL: length5_eq:
; X64: # %bb.0:
; X64-NEXT: pushq %rax
; X64-NEXT: pushq $5
; X64-NEXT: popq %rdx
; X64-NEXT: callq memcmp
; X64-NEXT: testl %eax, %eax
; X64-NEXT: setne %al
; X64-NEXT: popq %rcx
; X64-NEXT: retq
%m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 5) nounwind
%c = icmp ne i32 %m, 0
ret i1 %c
}
define i32 @length8(i8* %X, i8* %Y) nounwind minsize {
; X64-LABEL: length8:
; X64: # %bb.0:
; X64-NEXT: pushq $8
; X64-NEXT: popq %rdx
; X64-NEXT: jmp memcmp # TAILCALL
%m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 8) nounwind
ret i32 %m
}
define i1 @length8_eq(i8* %X, i8* %Y) nounwind minsize {
; X64-LABEL: length8_eq:
; X64: # %bb.0:
; X64-NEXT: movq (%rdi), %rax
; X64-NEXT: cmpq (%rsi), %rax
; X64-NEXT: sete %al
; X64-NEXT: retq
%m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 8) nounwind
%c = icmp eq i32 %m, 0
ret i1 %c
}
define i1 @length8_eq_const(i8* %X) nounwind minsize {
; X64-LABEL: length8_eq_const:
; X64: # %bb.0:
; X64-NEXT: movabsq $3978425819141910832, %rax # imm = 0x3736353433323130
; X64-NEXT: cmpq %rax, (%rdi)
; X64-NEXT: setne %al
; X64-NEXT: retq
%m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 0), i64 8) nounwind
%c = icmp ne i32 %m, 0
ret i1 %c
}
define i1 @length12_eq(i8* %X, i8* %Y) nounwind minsize {
; X64-LABEL: length12_eq:
; X64: # %bb.0:
; X64-NEXT: pushq %rax
; X64-NEXT: pushq $12
; X64-NEXT: popq %rdx
; X64-NEXT: callq memcmp
; X64-NEXT: testl %eax, %eax
; X64-NEXT: setne %al
; X64-NEXT: popq %rcx
; X64-NEXT: retq
%m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 12) nounwind
%c = icmp ne i32 %m, 0
ret i1 %c
}
define i32 @length12(i8* %X, i8* %Y) nounwind minsize {
; X64-LABEL: length12:
; X64: # %bb.0:
; X64-NEXT: pushq $12
; X64-NEXT: popq %rdx
; X64-NEXT: jmp memcmp # TAILCALL
%m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 12) nounwind
ret i32 %m
}
; PR33329 - https://bugs.llvm.org/show_bug.cgi?id=33329
define i32 @length16(i8* %X, i8* %Y) nounwind minsize {
;
; X64-LABEL: length16:
; X64: # %bb.0:
; X64-NEXT: pushq $16
; X64-NEXT: popq %rdx
; X64-NEXT: jmp memcmp # TAILCALL
%m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 16) nounwind
ret i32 %m
}
define i1 @length16_eq(i8* %x, i8* %y) nounwind minsize {
; X64-SSE2-LABEL: length16_eq:
; X64-SSE2: # %bb.0:
; X64-SSE2-NEXT: movdqu (%rsi), %xmm0
; X64-SSE2-NEXT: movdqu (%rdi), %xmm1
; X64-SSE2-NEXT: pcmpeqb %xmm0, %xmm1
; X64-SSE2-NEXT: pmovmskb %xmm1, %eax
; X64-SSE2-NEXT: cmpl $65535, %eax # imm = 0xFFFF
; X64-SSE2-NEXT: setne %al
; X64-SSE2-NEXT: retq
;
; X64-AVX-LABEL: length16_eq:
; X64-AVX: # %bb.0:
; X64-AVX-NEXT: vmovdqu (%rdi), %xmm0
; X64-AVX-NEXT: vpxor (%rsi), %xmm0, %xmm0
; X64-AVX-NEXT: vptest %xmm0, %xmm0
; X64-AVX-NEXT: setne %al
; X64-AVX-NEXT: retq
%call = tail call i32 @memcmp(i8* %x, i8* %y, i64 16) nounwind
%cmp = icmp ne i32 %call, 0
ret i1 %cmp
}
define i1 @length16_eq_const(i8* %X) nounwind minsize {
; X64-SSE2-LABEL: length16_eq_const:
; X64-SSE2: # %bb.0:
; X64-SSE2-NEXT: movdqu (%rdi), %xmm0
; X64-SSE2-NEXT: pcmpeqb {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0
; X64-SSE2-NEXT: pmovmskb %xmm0, %eax
; X64-SSE2-NEXT: cmpl $65535, %eax # imm = 0xFFFF
; X64-SSE2-NEXT: sete %al
; X64-SSE2-NEXT: retq
;
; X64-AVX-LABEL: length16_eq_const:
; X64-AVX: # %bb.0:
; X64-AVX-NEXT: vmovdqu (%rdi), %xmm0
; X64-AVX-NEXT: vpxor {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0, %xmm0
; X64-AVX-NEXT: vptest %xmm0, %xmm0
; X64-AVX-NEXT: sete %al
; X64-AVX-NEXT: retq
%m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 0), i64 16) nounwind
%c = icmp eq i32 %m, 0
ret i1 %c
}
; PR33914 - https://bugs.llvm.org/show_bug.cgi?id=33914
define i32 @length24(i8* %X, i8* %Y) nounwind minsize {
; X64-LABEL: length24:
; X64: # %bb.0:
; X64-NEXT: pushq $24
; X64-NEXT: popq %rdx
; X64-NEXT: jmp memcmp # TAILCALL
%m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 24) nounwind
ret i32 %m
}
define i1 @length24_eq(i8* %x, i8* %y) nounwind minsize {
; X64-LABEL: length24_eq:
; X64: # %bb.0:
; X64-NEXT: pushq %rax
; X64-NEXT: pushq $24
; X64-NEXT: popq %rdx
; X64-NEXT: callq memcmp
; X64-NEXT: testl %eax, %eax
; X64-NEXT: sete %al
; X64-NEXT: popq %rcx
; X64-NEXT: retq
%call = tail call i32 @memcmp(i8* %x, i8* %y, i64 24) nounwind
%cmp = icmp eq i32 %call, 0
ret i1 %cmp
}
define i1 @length24_eq_const(i8* %X) nounwind minsize {
; X64-LABEL: length24_eq_const:
; X64: # %bb.0:
; X64-NEXT: pushq %rax
; X64-NEXT: pushq $24
; X64-NEXT: popq %rdx
; X64-NEXT: movl $.L.str, %esi
; X64-NEXT: callq memcmp
; X64-NEXT: testl %eax, %eax
; X64-NEXT: setne %al
; X64-NEXT: popq %rcx
; X64-NEXT: retq
%m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 0), i64 24) nounwind
%c = icmp ne i32 %m, 0
ret i1 %c
}
define i32 @length32(i8* %X, i8* %Y) nounwind minsize {
; X64-LABEL: length32:
; X64: # %bb.0:
; X64-NEXT: pushq $32
; X64-NEXT: popq %rdx
; X64-NEXT: jmp memcmp # TAILCALL
%m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 32) nounwind
ret i32 %m
}
; PR33325 - https://bugs.llvm.org/show_bug.cgi?id=33325
define i1 @length32_eq(i8* %x, i8* %y) nounwind minsize {
; X64-SSE2-LABEL: length32_eq:
; X64-SSE2: # %bb.0:
; X64-SSE2-NEXT: pushq %rax
; X64-SSE2-NEXT: pushq $32
; X64-SSE2-NEXT: popq %rdx
; X64-SSE2-NEXT: callq memcmp
; X64-SSE2-NEXT: testl %eax, %eax
; X64-SSE2-NEXT: sete %al
; X64-SSE2-NEXT: popq %rcx
; X64-SSE2-NEXT: retq
;
; X64-AVX1-LABEL: length32_eq:
; X64-AVX1: # %bb.0:
; X64-AVX1-NEXT: vmovups (%rdi), %ymm0
; X64-AVX1-NEXT: vxorps (%rsi), %ymm0, %ymm0
; X64-AVX1-NEXT: vptest %ymm0, %ymm0
; X64-AVX1-NEXT: sete %al
; X64-AVX1-NEXT: vzeroupper
; X64-AVX1-NEXT: retq
;
; X64-AVX2-LABEL: length32_eq:
; X64-AVX2: # %bb.0:
; X64-AVX2-NEXT: vmovdqu (%rdi), %ymm0
; X64-AVX2-NEXT: vpxor (%rsi), %ymm0, %ymm0
; X64-AVX2-NEXT: vptest %ymm0, %ymm0
; X64-AVX2-NEXT: sete %al
; X64-AVX2-NEXT: vzeroupper
; X64-AVX2-NEXT: retq
%call = tail call i32 @memcmp(i8* %x, i8* %y, i64 32) nounwind
%cmp = icmp eq i32 %call, 0
ret i1 %cmp
}
define i1 @length32_eq_const(i8* %X) nounwind minsize {
; X64-SSE2-LABEL: length32_eq_const:
; X64-SSE2: # %bb.0:
; X64-SSE2-NEXT: pushq %rax
; X64-SSE2-NEXT: pushq $32
; X64-SSE2-NEXT: popq %rdx
; X64-SSE2-NEXT: movl $.L.str, %esi
; X64-SSE2-NEXT: callq memcmp
; X64-SSE2-NEXT: testl %eax, %eax
; X64-SSE2-NEXT: setne %al
; X64-SSE2-NEXT: popq %rcx
; X64-SSE2-NEXT: retq
;
; X64-AVX1-LABEL: length32_eq_const:
; X64-AVX1: # %bb.0:
; X64-AVX1-NEXT: vmovups (%rdi), %ymm0
; X64-AVX1-NEXT: vxorps {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %ymm0, %ymm0
; X64-AVX1-NEXT: vptest %ymm0, %ymm0
; X64-AVX1-NEXT: setne %al
; X64-AVX1-NEXT: vzeroupper
; X64-AVX1-NEXT: retq
;
; X64-AVX2-LABEL: length32_eq_const:
; X64-AVX2: # %bb.0:
; X64-AVX2-NEXT: vmovdqu (%rdi), %ymm0
; X64-AVX2-NEXT: vpxor {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %ymm0, %ymm0
; X64-AVX2-NEXT: vptest %ymm0, %ymm0
; X64-AVX2-NEXT: setne %al
; X64-AVX2-NEXT: vzeroupper
; X64-AVX2-NEXT: retq
%m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 0), i64 32) nounwind
%c = icmp ne i32 %m, 0
ret i1 %c
}
define i32 @length64(i8* %X, i8* %Y) nounwind minsize {
; X64-LABEL: length64:
; X64: # %bb.0:
; X64-NEXT: pushq $64
; X64-NEXT: popq %rdx
; X64-NEXT: jmp memcmp # TAILCALL
%m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 64) nounwind
ret i32 %m
}
define i1 @length64_eq(i8* %x, i8* %y) nounwind minsize {
; X64-LABEL: length64_eq:
; X64: # %bb.0:
; X64-NEXT: pushq %rax
; X64-NEXT: pushq $64
; X64-NEXT: popq %rdx
; X64-NEXT: callq memcmp
; X64-NEXT: testl %eax, %eax
; X64-NEXT: setne %al
; X64-NEXT: popq %rcx
; X64-NEXT: retq
%call = tail call i32 @memcmp(i8* %x, i8* %y, i64 64) nounwind
%cmp = icmp ne i32 %call, 0
ret i1 %cmp
}
define i1 @length64_eq_const(i8* %X) nounwind minsize {
; X64-LABEL: length64_eq_const:
; X64: # %bb.0:
; X64-NEXT: pushq %rax
; X64-NEXT: pushq $64
; X64-NEXT: popq %rdx
; X64-NEXT: movl $.L.str, %esi
; X64-NEXT: callq memcmp
; X64-NEXT: testl %eax, %eax
; X64-NEXT: sete %al
; X64-NEXT: popq %rcx
; X64-NEXT: retq
%m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 0), i64 64) nounwind
%c = icmp eq i32 %m, 0
ret i1 %c
}
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