llvm/test/CodeGen/X86/remat-mov-0.ll
2011-02-22 07:21:25 +00:00

35 lines
687 B
LLVM

; RUN: llc < %s -mtriple=x86_64-linux | FileCheck %s
; RUN: llc < %s -mtriple=x86_64-win32 | FileCheck %s
; CodeGen should remat the zero instead of spilling it.
declare void @foo(i64 %p)
; CHECK: bar:
; CHECK: xorl %e[[A0:di|cx]], %e
; CHECK: xorl %e[[A0]], %e[[A0]]
define void @bar() nounwind {
call void @foo(i64 0)
call void @foo(i64 0)
ret void
}
; CHECK: bat:
; CHECK: movq $-1, %r[[A0]]
; CHECK: movq $-1, %r[[A0]]
define void @bat() nounwind {
call void @foo(i64 -1)
call void @foo(i64 -1)
ret void
}
; CHECK: bau:
; CHECK: movl $1, %e[[A0]]
; CHECK: movl $1, %e[[A0]]
define void @bau() nounwind {
call void @foo(i64 1)
call void @foo(i64 1)
ret void
}