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

13 lines
365 B
LLVM

; 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
}