1; RUN: llc < %s | FileCheck %s 2 3target 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" 4target triple = "x86_64-apple-darwin8" 5 6; This should be a single mov, not a load of immediate + andq. 7; CHECK: test: 8; CHECK: movl %edi, %eax 9 10define i64 @test(i64 %x) nounwind { 11entry: 12 %tmp123 = and i64 %x, 4294967295 ; <i64> [#uses=1] 13 ret i64 %tmp123 14} 15 16; This copy can't be coalesced away because it needs the implicit zero-extend. 17; CHECK: bbb: 18; CHECK: movl %edi, %edi 19 20define void @bbb(i64 %x) nounwind { 21 %t = and i64 %x, 4294967295 22 call void @foo(i64 %t) 23 ret void 24} 25 26; This should use a 32-bit and with implicit zero-extension, not a 64-bit and 27; with a separate mov to materialize the mask. 28; rdar://7527390 29; CHECK: ccc: 30; CHECK: andl $-1048593, %edi 31 32declare void @foo(i64 %x) nounwind 33 34define void @ccc(i64 %x) nounwind { 35 %t = and i64 %x, 4293918703 36 call void @foo(i64 %t) 37 ret void 38} 39 40; This requires a mov and a 64-bit and. 41; CHECK: ddd: 42; CHECK: movabsq $4294967296, %r 43; CHECK: andq %rax, %rdi 44 45define void @ddd(i64 %x) nounwind { 46 %t = and i64 %x, 4294967296 47 call void @foo(i64 %t) 48 ret void 49} 50