llvm-project/llvm/test/CodeGen/X86/remat-mov-0.ll

34 lines
594 B
LLVM

; RUN: llc < %s -march=x86-64 | FileCheck %s
; CodeGen should remat the zero instead of spilling it.
declare void @foo(i64 %p)
; CHECK: bar:
; CHECK: xorl %edi, %edi
; CHECK: xorl %edi, %edi
define void @bar() nounwind {
call void @foo(i64 0)
call void @foo(i64 0)
ret void
}
; CHECK: bat:
; CHECK: movq $-1, %rdi
; CHECK: movq $-1, %rdi
define void @bat() nounwind {
call void @foo(i64 -1)
call void @foo(i64 -1)
ret void
}
; CHECK: bau:
; CHECK: movl $1, %edi
; CHECK: movl $1, %edi
define void @bau() nounwind {
call void @foo(i64 1)
call void @foo(i64 1)
ret void
}