diff options
Diffstat (limited to 'llvm/test/CodeGen/X86/memcmp-optsize.ll')
| -rw-r--r-- | llvm/test/CodeGen/X86/memcmp-optsize.ll | 73 |
1 files changed, 51 insertions, 22 deletions
diff --git a/llvm/test/CodeGen/X86/memcmp-optsize.ll b/llvm/test/CodeGen/X86/memcmp-optsize.ll index 7683d1a4b31..d2b390f0943 100644 --- a/llvm/test/CodeGen/X86/memcmp-optsize.ll +++ b/llvm/test/CodeGen/X86/memcmp-optsize.ll @@ -639,17 +639,33 @@ define i32 @length24(i8* %X, i8* %Y) nounwind optsize { } define i1 @length24_eq(i8* %x, i8* %y) nounwind optsize { -; X86-LABEL: length24_eq: -; X86: # %bb.0: -; X86-NEXT: pushl $0 -; X86-NEXT: pushl $24 -; X86-NEXT: pushl {{[0-9]+}}(%esp) -; X86-NEXT: pushl {{[0-9]+}}(%esp) -; X86-NEXT: calll memcmp -; X86-NEXT: addl $16, %esp -; X86-NEXT: testl %eax, %eax -; X86-NEXT: sete %al -; X86-NEXT: retl +; X86-NOSSE-LABEL: length24_eq: +; X86-NOSSE: # %bb.0: +; X86-NOSSE-NEXT: pushl $0 +; X86-NOSSE-NEXT: pushl $24 +; X86-NOSSE-NEXT: pushl {{[0-9]+}}(%esp) +; X86-NOSSE-NEXT: pushl {{[0-9]+}}(%esp) +; X86-NOSSE-NEXT: calll memcmp +; X86-NOSSE-NEXT: addl $16, %esp +; X86-NOSSE-NEXT: testl %eax, %eax +; X86-NOSSE-NEXT: sete %al +; X86-NOSSE-NEXT: retl +; +; X86-SSE2-LABEL: length24_eq: +; X86-SSE2: # %bb.0: +; X86-SSE2-NEXT: movl {{[0-9]+}}(%esp), %eax +; X86-SSE2-NEXT: movl {{[0-9]+}}(%esp), %ecx +; X86-SSE2-NEXT: movdqu (%ecx), %xmm0 +; X86-SSE2-NEXT: movdqu 8(%ecx), %xmm1 +; X86-SSE2-NEXT: movdqu (%eax), %xmm2 +; X86-SSE2-NEXT: pcmpeqb %xmm0, %xmm2 +; X86-SSE2-NEXT: movdqu 8(%eax), %xmm0 +; X86-SSE2-NEXT: pcmpeqb %xmm1, %xmm0 +; X86-SSE2-NEXT: pand %xmm2, %xmm0 +; X86-SSE2-NEXT: pmovmskb %xmm0, %eax +; X86-SSE2-NEXT: cmpl $65535, %eax # imm = 0xFFFF +; X86-SSE2-NEXT: sete %al +; X86-SSE2-NEXT: retl ; ; X64-SSE2-LABEL: length24_eq: ; X64-SSE2: # %bb.0: @@ -683,17 +699,30 @@ define i1 @length24_eq(i8* %x, i8* %y) nounwind optsize { } define i1 @length24_eq_const(i8* %X) nounwind optsize { -; X86-LABEL: length24_eq_const: -; X86: # %bb.0: -; X86-NEXT: pushl $0 -; X86-NEXT: pushl $24 -; X86-NEXT: pushl $.L.str -; X86-NEXT: pushl {{[0-9]+}}(%esp) -; X86-NEXT: calll memcmp -; X86-NEXT: addl $16, %esp -; X86-NEXT: testl %eax, %eax -; X86-NEXT: setne %al -; X86-NEXT: retl +; X86-NOSSE-LABEL: length24_eq_const: +; X86-NOSSE: # %bb.0: +; X86-NOSSE-NEXT: pushl $0 +; X86-NOSSE-NEXT: pushl $24 +; X86-NOSSE-NEXT: pushl $.L.str +; X86-NOSSE-NEXT: pushl {{[0-9]+}}(%esp) +; X86-NOSSE-NEXT: calll memcmp +; X86-NOSSE-NEXT: addl $16, %esp +; X86-NOSSE-NEXT: testl %eax, %eax +; X86-NOSSE-NEXT: setne %al +; X86-NOSSE-NEXT: retl +; +; X86-SSE2-LABEL: length24_eq_const: +; X86-SSE2: # %bb.0: +; X86-SSE2-NEXT: movl {{[0-9]+}}(%esp), %eax +; X86-SSE2-NEXT: movdqu (%eax), %xmm0 +; X86-SSE2-NEXT: movdqu 8(%eax), %xmm1 +; X86-SSE2-NEXT: pcmpeqb {{\.LCPI.*}}, %xmm1 +; X86-SSE2-NEXT: pcmpeqb {{\.LCPI.*}}, %xmm0 +; X86-SSE2-NEXT: pand %xmm1, %xmm0 +; X86-SSE2-NEXT: pmovmskb %xmm0, %eax +; X86-SSE2-NEXT: cmpl $65535, %eax # imm = 0xFFFF +; X86-SSE2-NEXT: setne %al +; X86-SSE2-NEXT: retl ; ; X64-SSE2-LABEL: length24_eq_const: ; X64-SSE2: # %bb.0: |
