forked from OSchip/llvm-project
[X86] Add test cases for the current codegen of __builtin_parity.
Will be improved in a follow commit llvm-svn: 338906
This commit is contained in:
Craig Topper
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5aa217ac68
commit
b0ad9b9fd7
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=-popcnt | FileCheck %s --check-prefix=X86-NOPOPCNT
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=-popcnt | FileCheck %s --check-prefix=X64-NOPOPCNT
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; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=+popcnt | FileCheck %s --check-prefix=X86-POPCNT
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+popcnt | FileCheck %s --check-prefix=X64-POPCNT
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define i32 @parity_32(i32 %x) {
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; X86-NOPOPCNT-LABEL: parity_32:
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; X86-NOPOPCNT: # %bb.0:
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; X86-NOPOPCNT-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-NOPOPCNT-NEXT: movl %eax, %ecx
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; X86-NOPOPCNT-NEXT: shrl %ecx
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; X86-NOPOPCNT-NEXT: andl $1431655765, %ecx # imm = 0x55555555
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; X86-NOPOPCNT-NEXT: subl %ecx, %eax
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; X86-NOPOPCNT-NEXT: movl %eax, %ecx
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; X86-NOPOPCNT-NEXT: andl $858993459, %ecx # imm = 0x33333333
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; X86-NOPOPCNT-NEXT: shrl $2, %eax
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; X86-NOPOPCNT-NEXT: andl $858993459, %eax # imm = 0x33333333
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; X86-NOPOPCNT-NEXT: addl %ecx, %eax
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; X86-NOPOPCNT-NEXT: movl %eax, %ecx
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; X86-NOPOPCNT-NEXT: shrl $4, %ecx
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; X86-NOPOPCNT-NEXT: addl %eax, %ecx
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; X86-NOPOPCNT-NEXT: andl $17764111, %ecx # imm = 0x10F0F0F
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; X86-NOPOPCNT-NEXT: imull $16843009, %ecx, %eax # imm = 0x1010101
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; X86-NOPOPCNT-NEXT: shrl $24, %eax
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; X86-NOPOPCNT-NEXT: andl $1, %eax
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; X86-NOPOPCNT-NEXT: retl
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;
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; X64-NOPOPCNT-LABEL: parity_32:
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; X64-NOPOPCNT: # %bb.0:
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; X64-NOPOPCNT-NEXT: movl %edi, %eax
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; X64-NOPOPCNT-NEXT: shrl %eax
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; X64-NOPOPCNT-NEXT: andl $1431655765, %eax # imm = 0x55555555
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; X64-NOPOPCNT-NEXT: subl %eax, %edi
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; X64-NOPOPCNT-NEXT: movl %edi, %eax
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; X64-NOPOPCNT-NEXT: andl $858993459, %eax # imm = 0x33333333
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; X64-NOPOPCNT-NEXT: shrl $2, %edi
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; X64-NOPOPCNT-NEXT: andl $858993459, %edi # imm = 0x33333333
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; X64-NOPOPCNT-NEXT: addl %eax, %edi
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; X64-NOPOPCNT-NEXT: movl %edi, %eax
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; X64-NOPOPCNT-NEXT: shrl $4, %eax
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; X64-NOPOPCNT-NEXT: addl %edi, %eax
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; X64-NOPOPCNT-NEXT: andl $17764111, %eax # imm = 0x10F0F0F
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; X64-NOPOPCNT-NEXT: imull $16843009, %eax, %eax # imm = 0x1010101
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; X64-NOPOPCNT-NEXT: shrl $24, %eax
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; X64-NOPOPCNT-NEXT: andl $1, %eax
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; X64-NOPOPCNT-NEXT: retq
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;
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; X86-POPCNT-LABEL: parity_32:
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; X86-POPCNT: # %bb.0:
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; X86-POPCNT-NEXT: popcntl {{[0-9]+}}(%esp), %eax
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; X86-POPCNT-NEXT: andl $1, %eax
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; X86-POPCNT-NEXT: retl
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;
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; X64-POPCNT-LABEL: parity_32:
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; X64-POPCNT: # %bb.0:
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; X64-POPCNT-NEXT: popcntl %edi, %eax
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; X64-POPCNT-NEXT: andl $1, %eax
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; X64-POPCNT-NEXT: retq
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%1 = tail call i32 @llvm.ctpop.i32(i32 %x)
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%2 = and i32 %1, 1
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ret i32 %2
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}
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define i64 @parity_64(i64 %x) {
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; X86-NOPOPCNT-LABEL: parity_64:
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; X86-NOPOPCNT: # %bb.0:
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; X86-NOPOPCNT-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-NOPOPCNT-NEXT: movl {{[0-9]+}}(%esp), %ecx
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; X86-NOPOPCNT-NEXT: movl %ecx, %edx
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; X86-NOPOPCNT-NEXT: shrl %edx
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; X86-NOPOPCNT-NEXT: andl $1431655765, %edx # imm = 0x55555555
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; X86-NOPOPCNT-NEXT: subl %edx, %ecx
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; X86-NOPOPCNT-NEXT: movl %ecx, %edx
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; X86-NOPOPCNT-NEXT: andl $858993459, %edx # imm = 0x33333333
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; X86-NOPOPCNT-NEXT: shrl $2, %ecx
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; X86-NOPOPCNT-NEXT: andl $858993459, %ecx # imm = 0x33333333
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; X86-NOPOPCNT-NEXT: addl %edx, %ecx
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; X86-NOPOPCNT-NEXT: movl %ecx, %edx
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; X86-NOPOPCNT-NEXT: shrl $4, %edx
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; X86-NOPOPCNT-NEXT: addl %ecx, %edx
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; X86-NOPOPCNT-NEXT: andl $17764111, %edx # imm = 0x10F0F0F
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; X86-NOPOPCNT-NEXT: imull $16843009, %edx, %ecx # imm = 0x1010101
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; X86-NOPOPCNT-NEXT: shrl $24, %ecx
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; X86-NOPOPCNT-NEXT: movl %eax, %edx
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; X86-NOPOPCNT-NEXT: shrl %edx
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; X86-NOPOPCNT-NEXT: andl $1431655765, %edx # imm = 0x55555555
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; X86-NOPOPCNT-NEXT: subl %edx, %eax
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; X86-NOPOPCNT-NEXT: movl %eax, %edx
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; X86-NOPOPCNT-NEXT: andl $858993459, %edx # imm = 0x33333333
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; X86-NOPOPCNT-NEXT: shrl $2, %eax
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; X86-NOPOPCNT-NEXT: andl $858993459, %eax # imm = 0x33333333
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; X86-NOPOPCNT-NEXT: addl %edx, %eax
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; X86-NOPOPCNT-NEXT: movl %eax, %edx
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; X86-NOPOPCNT-NEXT: shrl $4, %edx
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; X86-NOPOPCNT-NEXT: addl %eax, %edx
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; X86-NOPOPCNT-NEXT: andl $17764111, %edx # imm = 0x10F0F0F
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; X86-NOPOPCNT-NEXT: imull $16843009, %edx, %eax # imm = 0x1010101
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; X86-NOPOPCNT-NEXT: shrl $24, %eax
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; X86-NOPOPCNT-NEXT: addl %ecx, %eax
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; X86-NOPOPCNT-NEXT: andl $1, %eax
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; X86-NOPOPCNT-NEXT: xorl %edx, %edx
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; X86-NOPOPCNT-NEXT: retl
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;
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; X64-NOPOPCNT-LABEL: parity_64:
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; X64-NOPOPCNT: # %bb.0:
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; X64-NOPOPCNT-NEXT: movq %rdi, %rax
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; X64-NOPOPCNT-NEXT: shrq %rax
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; X64-NOPOPCNT-NEXT: movabsq $6148914691236517205, %rcx # imm = 0x5555555555555555
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; X64-NOPOPCNT-NEXT: andq %rax, %rcx
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; X64-NOPOPCNT-NEXT: subq %rcx, %rdi
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; X64-NOPOPCNT-NEXT: movabsq $3689348814741910323, %rax # imm = 0x3333333333333333
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; X64-NOPOPCNT-NEXT: movq %rdi, %rcx
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; X64-NOPOPCNT-NEXT: andq %rax, %rcx
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; X64-NOPOPCNT-NEXT: shrq $2, %rdi
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; X64-NOPOPCNT-NEXT: andq %rax, %rdi
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; X64-NOPOPCNT-NEXT: addq %rcx, %rdi
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; X64-NOPOPCNT-NEXT: movq %rdi, %rax
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; X64-NOPOPCNT-NEXT: shrq $4, %rax
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; X64-NOPOPCNT-NEXT: leaq (%rax,%rdi), %rax
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; X64-NOPOPCNT-NEXT: movabsq $76296276040158991, %rcx # imm = 0x10F0F0F0F0F0F0F
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; X64-NOPOPCNT-NEXT: andq %rax, %rcx
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; X64-NOPOPCNT-NEXT: movabsq $72340172838076673, %rax # imm = 0x101010101010101
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; X64-NOPOPCNT-NEXT: imulq %rcx, %rax
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; X64-NOPOPCNT-NEXT: shrq $56, %rax
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; X64-NOPOPCNT-NEXT: andl $1, %eax
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; X64-NOPOPCNT-NEXT: retq
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;
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; X86-POPCNT-LABEL: parity_64:
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; X86-POPCNT: # %bb.0:
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; X86-POPCNT-NEXT: popcntl {{[0-9]+}}(%esp), %ecx
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; X86-POPCNT-NEXT: popcntl {{[0-9]+}}(%esp), %eax
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; X86-POPCNT-NEXT: addl %ecx, %eax
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; X86-POPCNT-NEXT: andl $1, %eax
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; X86-POPCNT-NEXT: xorl %edx, %edx
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; X86-POPCNT-NEXT: retl
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;
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; X64-POPCNT-LABEL: parity_64:
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; X64-POPCNT: # %bb.0:
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; X64-POPCNT-NEXT: popcntq %rdi, %rax
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; X64-POPCNT-NEXT: andl $1, %eax
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; X64-POPCNT-NEXT: retq
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%1 = tail call i64 @llvm.ctpop.i64(i64 %x)
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%2 = and i64 %1, 1
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ret i64 %2
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}
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declare i32 @llvm.ctpop.i32(i32 %x)
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declare i64 @llvm.ctpop.i64(i64 %x)
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