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// REQUIRES: target_X86
// RUN: %ldc -output-s -mtriple=x86_64-linux-gnu -O -of=%t.s %s && FileCheck %s < %t.s
import core.int128;
// CHECK: _D6int1285mulhiFmmZm:
ulong mulhi(ulong a, ulong b)
{
// CHECK-NEXT: .cfi_startproc
// CHECK-NEXT: movq %rsi, %rax
// CHECK-NEXT: mulq %rdi
// CHECK-NEXT: movq %rdx, %rax
// CHECK-NEXT: retq
return mul(Cent(a), Cent(b)).hi;
}
// CHECK: _D6int12810mul_divmodFmmmJmZm:
ulong mul_divmod(ulong a, ulong b, ulong c, out ulong modulus)
{
// CHECK-NEXT: .cfi_startproc
// CHECK-NEXT: movq %rdx, %r8
// CHECK-NEXT: movq %rsi, %rax
// CHECK-NEXT: mulq %rdi
// CHECK-NEXT: movq $0, (%rcx)
// CHECK-NEXT: #APP
// CHECK-NEXT: divq %r8
// CHECK-NEXT: #NO_APP
// CHECK-NEXT: movq %rdx, (%rcx)
// CHECK-NEXT: retq
const product128 = mul(Cent(a), Cent(b));
return udivmod(product128, c, modulus);
}
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