llvm-mirror/test/CodeGen/X86/mod128.ll
Reid Kleckner 3d55680273 Fix i128 div/mod on mingw64
The Win64 docs are very clear that anything larger than 8 bytes is
passed by reference, and GCC MinGW64 honors that for __modti3 and
friends.

Patch by Jameson Nash!

llvm-svn: 208029
2014-05-06 01:20:42 +00:00

27 lines
836 B
LLVM

; RUN: llc < %s -mtriple=x86_64-linux | FileCheck %s -check-prefix=X86-64
; RUN: llc < %s -mtriple=x86_64-cygwin | FileCheck %s -check-prefix=WIN64
; RUN: llc < %s -mtriple=x86_64-win32 | FileCheck %s -check-prefix=WIN64
; RUN: llc < %s -mtriple=x86_64-mingw32 | FileCheck %s -check-prefix=WIN64
define i64 @mod128(i128 %x) {
; X86-64: movl $3, %edx
; X86-64: xorl %ecx, %ecx
; X86-64: callq __modti3
; X86-64-NOT: movd %xmm0, %rax
; WIN64-NOT: movl $3, %r8d
; WIN64-NOT: xorl %r9d, %r9d
; WIN64-DAG: movq %rdx, 56(%rsp)
; WIN64-DAG: movq %rcx, 48(%rsp)
; WIN64-DAG: leaq 48(%rsp), %rcx
; WIN64-DAG: leaq 32(%rsp), %rdx
; WIN64-DAG: movq $0, 40(%rsp)
; WIN64-DAG: movq $3, 32(%rsp)
; WIN64: callq __modti3
; WIN64: movd %xmm0, %rax
%1 = srem i128 %x, 3
%2 = trunc i128 %1 to i64
ret i64 %2
}