llvm-6502/test/CodeGen/X86/promote-i16.ll

; RUN: llc < %s -march=x86 | FileCheck %s

define signext i16 @foo(i16 signext %x) nounwind {
entry:
; CHECK: foo:
; CHECK: movzwl 4(%esp), %eax
; CHECK: xorl $21998, %eax
; CHECK: movswl %ax, %eax
  %0 = xor i16 %x, 21998
  ret i16 %0
}
Enable i16 to i32 promotion by default. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102493 91177308-0d34-0410-b5e6-96231b3b80d8 2010-04-28 08:30:49 +00:00			`; RUN: llc < %s -march=x86 \| FileCheck %s`

			`define signext i16 @foo(i16 signext %x) nounwind {`
			`entry:`
			`; CHECK: foo:`
			`; CHECK: movzwl 4(%esp), %eax`
As Dan pointed out, movzbl, movsbl, and friends are nicer than their alias (movzx/movsx) because they give more information. Revert that part of the patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129498 91177308-0d34-0410-b5e6-96231b3b80d8 2011-04-14 01:46:37 +00:00			`; CHECK: xorl $21998, %eax`
			`; CHECK: movswl %ax, %eax`
Enable i16 to i32 promotion by default. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102493 91177308-0d34-0410-b5e6-96231b3b80d8 2010-04-28 08:30:49 +00:00			`%0 = xor i16 %x, 21998`
			`ret i16 %0`
			`}`