mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-11-17 03:07:06 +00:00
e5dacc55ad
has an immediate with at least 32 bits of leading zeros, to avoid needing to materialize that immediate in a register first. FileCheckize, tidy, and extend a testcase to cover this case. This fixes rdar://7527390. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93160 91177308-0d34-0410-b5e6-96231b3b80d8
50 lines
1.2 KiB
LLVM
50 lines
1.2 KiB
LLVM
; RUN: llc < %s | FileCheck %s
|
|
|
|
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
|
|
target triple = "x86_64-apple-darwin8"
|
|
|
|
; This should be a single mov, not a load of immediate + andq.
|
|
; CHECK: test:
|
|
; CHECK: movl %edi, %eax
|
|
|
|
define i64 @test(i64 %x) nounwind {
|
|
entry:
|
|
%tmp123 = and i64 %x, 4294967295 ; <i64> [#uses=1]
|
|
ret i64 %tmp123
|
|
}
|
|
|
|
; This copy can't be coalesced away because it needs the implicit zero-extend.
|
|
; CHECK: bbb:
|
|
; CHECK: movl %edi, %edi
|
|
|
|
define void @bbb(i64 %x) nounwind {
|
|
%t = and i64 %x, 4294967295
|
|
call void @foo(i64 %t)
|
|
ret void
|
|
}
|
|
|
|
; This should use a 32-bit and with implicit zero-extension, not a 64-bit and
|
|
; with a separate mov to materialize the mask.
|
|
; rdar://7527390
|
|
; CHECK: ccc:
|
|
; CHECK: andl $-1048593, %edi
|
|
|
|
declare void @foo(i64 %x) nounwind
|
|
|
|
define void @ccc(i64 %x) nounwind {
|
|
%t = and i64 %x, 4293918703
|
|
call void @foo(i64 %t)
|
|
ret void
|
|
}
|
|
|
|
; This requires a mov and a 64-bit and.
|
|
; CHECK: ddd:
|
|
; CHECK: movabsq $4294967296, %rax
|
|
; CHECK: andq %rax, %rdi
|
|
|
|
define void @ddd(i64 %x) nounwind {
|
|
%t = and i64 %x, 4294967296
|
|
call void @foo(i64 %t)
|
|
ret void
|
|
}
|