; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=i686-unknown-unknown | FileCheck %s --check-prefixes=X86
; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s --check-prefixes=X64
%WideUInt32 = type { i32, i32 }
define void @PR25858_i32(ptr sret(%WideUInt32), ptr, ptr) nounwind {
; X86-LABEL: PR25858_i32:
; X86: # %bb.0: # %top
; X86-NEXT: pushl %esi
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-NEXT: movl (%edx), %esi
; X86-NEXT: movl 4(%edx), %edx
; X86-NEXT: subl (%ecx), %esi
; X86-NEXT: sbbl 4(%ecx), %edx
; X86-NEXT: movl %edx, 4(%eax)
; X86-NEXT: movl %esi, (%eax)
; X86-NEXT: popl %esi
; X86-NEXT: retl $4
;
; X64-LABEL: PR25858_i32:
; X64: # %bb.0: # %top
; X64-NEXT: movq %rdi, %rax
; X64-NEXT: movl (%rsi), %ecx
; X64-NEXT: movl 4(%rsi), %esi
; X64-NEXT: subl (%rdx), %ecx
; X64-NEXT: sbbl 4(%rdx), %esi
; X64-NEXT: movl %esi, 4(%rdi)
; X64-NEXT: movl %ecx, (%rdi)
; X64-NEXT: retq
top:
%3 = load i32, ptr %1, align 4
%4 = load i32, ptr %2, align 4
%5 = sub i32 %3, %4
%6 = call { i32, i1 } @llvm.usub.with.overflow.i32(i32 %3, i32 %4)
%7 = extractvalue { i32, i1 } %6, 1
%8 = getelementptr inbounds %WideUInt32, ptr %1, i32 0, i32 1
%9 = load i32, ptr %8, align 8
%10 = getelementptr inbounds %WideUInt32, ptr %2, i32 0, i32 1
%11 = load i32, ptr %10, align 8
%12 = sub i32 %9, %11
%.neg1 = sext i1 %7 to i32
%13 = add i32 %12, %.neg1
%14 = insertvalue %WideUInt32 undef, i32 %5, 0
%15 = insertvalue %WideUInt32 %14, i32 %13, 1
store %WideUInt32 %15, ptr %0, align 4
ret void
}
declare { i32, i1 } @llvm.usub.with.overflow.i32(i32, i32)
%WideUInt64 = type { i64, i64 }
define void @PR25858_i64(ptr sret(%WideUInt64), ptr, ptr) nounwind {
; X86-LABEL: PR25858_i64:
; X86: # %bb.0: # %top
; X86-NEXT: pushl %ebx
; X86-NEXT: pushl %edi
; X86-NEXT: pushl %esi
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: movl {{[0-9]+}}(%esp), %ebx
; X86-NEXT: movl {{[0-9]+}}(%esp), %edi
; X86-NEXT: movl (%edi), %edx
; X86-NEXT: movl 4(%edi), %esi
; X86-NEXT: movl 12(%edi), %ecx
; X86-NEXT: movl 8(%edi), %edi
; X86-NEXT: subl 8(%ebx), %edi
; X86-NEXT: sbbl 12(%ebx), %ecx
; X86-NEXT: subl (%ebx), %edx
; X86-NEXT: sbbl 4(%ebx), %esi
; X86-NEXT: sbbl $0, %edi
; X86-NEXT: sbbl $0, %ecx
; X86-NEXT: movl %edx, (%eax)
; X86-NEXT: movl %esi, 4(%eax)
; X86-NEXT: movl %edi, 8(%eax)
; X86-NEXT: movl %ecx, 12(%eax)
; X86-NEXT: popl %esi
; X86-NEXT: popl %edi
; X86-NEXT: popl %ebx
; X86-NEXT: retl $4
;
; X64-LABEL: PR25858_i64:
; X64: # %bb.0: # %top
; X64-NEXT: movq %rdi, %rax
; X64-NEXT: movq (%rsi), %rcx
; X64-NEXT: movq 8(%rsi), %rsi
; X64-NEXT: subq (%rdx), %rcx
; X64-NEXT: sbbq 8(%rdx), %rsi
; X64-NEXT: movq %rsi, 8(%rdi)
; X64-NEXT: movq %rcx, (%rdi)
; X64-NEXT: retq
top:
%3 = load i64, ptr %1, align 8
%4 = load i64, ptr %2, align 8
%5 = sub i64 %3, %4
%6 = call { i64, i1 } @llvm.usub.with.overflow.i64(i64 %3, i64 %4)
%7 = extractvalue { i64, i1 } %6, 1
%8 = getelementptr inbounds %WideUInt64, ptr %1, i64 0, i32 1
%9 = load i64, ptr %8, align 8
%10 = getelementptr inbounds %WideUInt64, ptr %2, i64 0, i32 1
%11 = load i64, ptr %10, align 8
%12 = sub i64 %9, %11
%.neg1 = sext i1 %7 to i64
%13 = add i64 %12, %.neg1
%14 = insertvalue %WideUInt64 undef, i64 %5, 0
%15 = insertvalue %WideUInt64 %14, i64 %13, 1
store %WideUInt64 %15, ptr %0, align 8
ret void
}
declare { i64, i1 } @llvm.usub.with.overflow.i64(i64, i64)
; PR24545 less_than_ideal()
define i8 @PR24545(i32, i32, ptr nocapture readonly) {
; X86-LABEL: PR24545:
; X86: # %bb.0:
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-NEXT: cmpl (%ecx), %edx
; X86-NEXT: sbbl 4(%ecx), %eax
; X86-NEXT: setb %al
; X86-NEXT: retl
;
; X64-LABEL: PR24545:
; X64: # %bb.0:
; X64-NEXT: cmpl (%rdx), %edi
; X64-NEXT: sbbl 4(%rdx), %esi
; X64-NEXT: setb %al
; X64-NEXT: retq
%4 = load i32, ptr %2
%5 = icmp ugt i32 %4, %0
%6 = zext i1 %5 to i8
%7 = getelementptr inbounds i32, ptr %2, i32 1
%8 = load i32, ptr %7
%9 = tail call { i8, i32 } @llvm.x86.subborrow.32(i8 %6, i32 %1, i32 %8)
%10 = extractvalue { i8, i32 } %9, 0
%11 = icmp ne i8 %10, 0
%12 = zext i1 %11 to i8
ret i8 %12
}
define i32 @PR40483_sub1(ptr, i32) nounwind {
; X86-LABEL: PR40483_sub1:
; X86: # %bb.0:
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT: subl %eax, (%ecx)
; X86-NEXT: xorl %eax, %eax
; X86-NEXT: retl
;
; X64-LABEL: PR40483_sub1:
; X64: # %bb.0:
; X64-NEXT: subl %esi, (%rdi)
; X64-NEXT: xorl %eax, %eax
; X64-NEXT: retq
%3 = load i32, ptr %0, align 4
%4 = tail call { i8, i32 } @llvm.x86.subborrow.32(i8 0, i32 %3, i32 %1)
%5 = extractvalue { i8, i32 } %4, 1
store i32 %5, ptr %0, align 4
%6 = sub i32 %1, %3
%7 = add i32 %6, %5
ret i32 %7
}
define i32 @PR40483_sub2(ptr, i32) nounwind {
; X86-LABEL: PR40483_sub2:
; X86: # %bb.0:
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT: subl %eax, (%ecx)
; X86-NEXT: xorl %eax, %eax
; X86-NEXT: retl
;
; X64-LABEL: PR40483_sub2:
; X64: # %bb.0:
; X64-NEXT: subl %esi, (%rdi)
; X64-NEXT: xorl %eax, %eax
; X64-NEXT: retq
%3 = load i32, ptr %0, align 4
%4 = sub i32 %3, %1
%5 = tail call { i8, i32 } @llvm.x86.subborrow.32(i8 0, i32 %3, i32 %1)
%6 = extractvalue { i8, i32 } %5, 1
store i32 %6, ptr %0, align 4
%7 = sub i32 %4, %6
ret i32 %7
}
define i32 @PR40483_sub3(ptr, i32) nounwind {
; X86-LABEL: PR40483_sub3:
; X86: # %bb.0:
; X86-NEXT: pushl %esi
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: movl (%eax), %edx
; X86-NEXT: movl {{[0-9]+}}(%esp), %esi
; X86-NEXT: movl %edx, %ecx
; X86-NEXT: subl %esi, %ecx
; X86-NEXT: subl %esi, %edx
; X86-NEXT: movl %edx, (%eax)
; X86-NEXT: jae .LBB5_1
; X86-NEXT: # %bb.2:
; X86-NEXT: xorl %eax, %eax
; X86-NEXT: popl %esi
; X86-NEXT: retl
; X86-NEXT: .LBB5_1:
; X86-NEXT: movl %ecx, %eax
; X86-NEXT: negl %eax
; X86-NEXT: orl %ecx, %eax
; X86-NEXT: popl %esi
; X86-NEXT: retl
;
; X64-LABEL: PR40483_sub3:
; X64: # %bb.0:
; X64-NEXT: movl (%rdi), %ecx
; X64-NEXT: movl %ecx, %eax
; X64-NEXT: subl %esi, %eax
; X64-NEXT: movl %eax, %edx
; X64-NEXT: negl %edx
; X64-NEXT: orl %eax, %edx
; X64-NEXT: xorl %eax, %eax
; X64-NEXT: subl %esi, %ecx
; X64-NEXT: movl %ecx, (%rdi)
; X64-NEXT: cmovael %edx, %eax
; X64-NEXT: retq
%3 = load i32, ptr %0, align 8
%4 = tail call { i8, i32 } @llvm.x86.subborrow.32(i8 0, i32 %3, i32 %1)
%5 = extractvalue { i8, i32 } %4, 1
store i32 %5, ptr %0, align 8
%6 = extractvalue { i8, i32 } %4, 0
%7 = icmp eq i8 %6, 0
%8 = sub i32 %1, %3
%9 = or i32 %5, %8
%10 = select i1 %7, i32 %9, i32 0
ret i32 %10
}
define i32 @PR40483_sub4(ptr, i32) nounwind {
; X86-LABEL: PR40483_sub4:
; X86: # %bb.0:
; X86-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-NEXT: movl (%edx), %ecx
; X86-NEXT: xorl %eax, %eax
; X86-NEXT: subl {{[0-9]+}}(%esp), %ecx
; X86-NEXT: movl %ecx, (%edx)
; X86-NEXT: jae .LBB6_2
; X86-NEXT: # %bb.1:
; X86-NEXT: movl %ecx, %eax
; X86-NEXT: .LBB6_2:
; X86-NEXT: retl
;
; X64-LABEL: PR40483_sub4:
; X64: # %bb.0:
; X64-NEXT: movl (%rdi), %eax
; X64-NEXT: xorl %ecx, %ecx
; X64-NEXT: subl %esi, %eax
; X64-NEXT: movl %eax, (%rdi)
; X64-NEXT: cmovael %ecx, %eax
; X64-NEXT: retq
%3 = load i32, ptr %0, align 8
%4 = tail call { i8, i32 } @llvm.x86.subborrow.32(i8 0, i32 %3, i32 %1)
%5 = extractvalue { i8, i32 } %4, 1
store i32 %5, ptr %0, align 8
%6 = extractvalue { i8, i32 } %4, 0
%7 = icmp eq i8 %6, 0
%8 = sub i32 %3, %1
%9 = or i32 %5, %8
%10 = select i1 %7, i32 0, i32 %9
ret i32 %10
}
; Verify that a bogus cmov is simplified.
define i32 @PR40483_sub5(ptr, i32) nounwind {
; X86-LABEL: PR40483_sub5:
; X86: # %bb.0:
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT: subl %eax, (%ecx)
; X86-NEXT: xorl %eax, %eax
; X86-NEXT: retl
;
; X64-LABEL: PR40483_sub5:
; X64: # %bb.0:
; X64-NEXT: subl %esi, (%rdi)
; X64-NEXT: xorl %eax, %eax
; X64-NEXT: retq
%3 = load i32, ptr %0, align 8
%4 = tail call { i8, i32 } @llvm.x86.subborrow.32(i8 0, i32 %3, i32 %1)
%5 = extractvalue { i8, i32 } %4, 1
store i32 %5, ptr %0, align 8
%6 = extractvalue { i8, i32 } %4, 0
%7 = icmp eq i8 %6, 0
%8 = sub i32 %1, %3
%9 = add i32 %8, %5
%10 = select i1 %7, i32 %9, i32 0
ret i32 %10
}
define i32 @PR40483_sub6(ptr, i32) nounwind {
; X86-LABEL: PR40483_sub6:
; X86: # %bb.0:
; X86-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-NEXT: movl (%edx), %ecx
; X86-NEXT: xorl %eax, %eax
; X86-NEXT: subl {{[0-9]+}}(%esp), %ecx
; X86-NEXT: movl %ecx, (%edx)
; X86-NEXT: jae .LBB8_2
; X86-NEXT: # %bb.1:
; X86-NEXT: leal (%ecx,%ecx), %eax
; X86-NEXT: .LBB8_2:
; X86-NEXT: retl
;
; X64-LABEL: PR40483_sub6:
; X64: # %bb.0:
; X64-NEXT: movl (%rdi), %eax
; X64-NEXT: xorl %ecx, %ecx
; X64-NEXT: subl %esi, %eax
; X64-NEXT: movl %eax, (%rdi)
; X64-NEXT: leal (%rax,%rax), %eax
; X64-NEXT: cmovael %ecx, %eax
; X64-NEXT: retq
%3 = load i32, ptr %0, align 8
%4 = tail call { i8, i32 } @llvm.x86.subborrow.32(i8 0, i32 %3, i32 %1)
%5 = extractvalue { i8, i32 } %4, 1
store i32 %5, ptr %0, align 8
%6 = extractvalue { i8, i32 } %4, 0
%7 = icmp eq i8 %6, 0
%8 = sub i32 %3, %1
%9 = add i32 %8, %5
%10 = select i1 %7, i32 0, i32 %9
ret i32 %10
}
declare { i8, i32 } @llvm.x86.subborrow.32(i8, i32, i32)
Codebase Browser
llvm