llvm/test/CodeGen/X86/wide-integer-fold.ll

; RUN: llc < %s -march=x86-64 | FileCheck %s
; CHECK:  movq  $-65535, %rax

; DAGCombiner should fold this to a simple constant.

define i64 @foo(i192 %a) nounwind {
  %t = or i192 %a, -22300404916163702203072254898040925442801665
  %s = and i192 %t, -22300404916163702203072254898040929737768960
  %u = lshr i192 %s, 128
  %v = trunc i192 %u to i64
  ret i64 %v
}
Eliminate more uses of llvm-as and llvm-dis. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81290 91177308-0d34-0410-b5e6-96231b3b80d8 2009-09-08 23:54:48 +00:00			`; RUN: llc < %s -march=x86-64 \| FileCheck %s`
Fix a few places in DAGCombiner that were creating all-ones-bits and high-bits values in ways that weren't correct for integer types wider than 64 bits. This fixes a miscompile in PPMacroExpansion.cpp in clang on x86-64. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78295 91177308-0d34-0410-b5e6-96231b3b80d8 2009-08-06 09:18:59 +00:00			`; CHECK: movq $-65535, %rax`

			`; DAGCombiner should fold this to a simple constant.`

			`define i64 @foo(i192 %a) nounwind {`
			`%t = or i192 %a, -22300404916163702203072254898040925442801665`
			`%s = and i192 %t, -22300404916163702203072254898040929737768960`
			`%u = lshr i192 %s, 128`
			`%v = trunc i192 %u to i64`
			`ret i64 %v`
			`}`