1*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -O0 -march=x86-64 -mattr=+mmx,+sse2 | FileCheck %s 2*9880d681SAndroid Build Coastguard Worker; PR4684 3*9880d681SAndroid Build Coastguard Worker 4*9880d681SAndroid Build Coastguard Workertarget datalayout = 5*9880d681SAndroid Build Coastguard Worker"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" 6*9880d681SAndroid Build Coastguard Workertarget triple = "x86_64-apple-darwin9.8" 7*9880d681SAndroid Build Coastguard Worker 8*9880d681SAndroid Build Coastguard Workerdeclare void @func2(x86_mmx) 9*9880d681SAndroid Build Coastguard Worker 10*9880d681SAndroid Build Coastguard Workerdefine void @func1() nounwind { 11*9880d681SAndroid Build Coastguard Worker 12*9880d681SAndroid Build Coastguard Worker; This isn't spectacular, but it's MMX code at -O0... 13*9880d681SAndroid Build Coastguard Worker; CHECK: movq2dq %mm0, %xmm0 14*9880d681SAndroid Build Coastguard Worker; For now, handling of x86_mmx parameters in fast Isel is unimplemented, 15*9880d681SAndroid Build Coastguard Worker; so we get pretty poor code. The below is preferable. 16*9880d681SAndroid Build Coastguard Worker; CHEK: movl $2, %eax 17*9880d681SAndroid Build Coastguard Worker; CHEK: movd %rax, %mm0 18*9880d681SAndroid Build Coastguard Worker; CHEK: movd %mm0, %rdi 19*9880d681SAndroid Build Coastguard Worker 20*9880d681SAndroid Build Coastguard Worker %tmp0 = bitcast <2 x i32><i32 0, i32 2> to x86_mmx 21*9880d681SAndroid Build Coastguard Worker call void @func2(x86_mmx %tmp0) 22*9880d681SAndroid Build Coastguard Worker ret void 23*9880d681SAndroid Build Coastguard Worker} 24