llvm-6502/test/CodeGen/X86/andimm8.ll

; RUN: llc < %s -march=x86-64 -mtriple=x86_64-pc-linux-gnu -show-mc-encoding | FileCheck %s

; PR8365
; CHECK: andl	$-64, %edi              # encoding: [0x83,0xe7,0xc0]

define i64 @bra(i32 %zed) nounwind {
 %t1 = zext i32 %zed to i64
 %t2 = and i64  %t1, 4294967232
 ret i64 %t2
}

; CHECK:  orq     $2, %rdi                # encoding: [0x48,0x83,0xcf,0x02]

define void @foo(i64 %zed, i64* %x) nounwind {
  %t1 = and i64 %zed, -4
  %t2 = or i64 %t1, 2
  store i64 %t2, i64* %x, align 8
  ret void
}
Fix PR8365 by adding a more specialized Pat that checks if an 'and' with 8 bit constants can be used. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116403 91177308-0d34-0410-b5e6-96231b3b80d8 2010-10-13 13:31:20 +00:00			`; RUN: llc < %s -march=x86-64 -mtriple=x86_64-pc-linux-gnu -show-mc-encoding \| FileCheck %s`

			`; PR8365`
			`; CHECK: andl $-64, %edi # encoding: [0x83,0xe7,0xc0]`

			`define i64 @bra(i32 %zed) nounwind {`
			`%t1 = zext i32 %zed to i64`
			`%t2 = and i64 %t1, 4294967232`
			`ret i64 %t2`
			`}`
Fix another case where we were preferring instructions with large immediates instead of 8 bits ones. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116410 91177308-0d34-0410-b5e6-96231b3b80d8 2010-10-13 17:14:25 +00:00
			`; CHECK: orq $2, %rdi # encoding: [0x48,0x83,0xcf,0x02]`

			`define void @foo(i64 %zed, i64* %x) nounwind {`
			`%t1 = and i64 %zed, -4`
			`%t2 = or i64 %t1, 2`
			`store i64 %t2, i64* %x, align 8`
			`ret void`
			`}`