| ; RUN: llc < %s -widen-vmovs -mcpu=cortex-a8 -verify-machineinstrs | FileCheck %s | |
| target triple = "thumbv7-apple-ios" | |
| ; The 0.0 constant is loaded from the constant pool and kept in a register. | |
| ; CHECK: %entry | |
| ; CHECK: vldr.32 s | |
| ; The float loop variable is initialized with a vmovs from the constant register. | |
| ; The vmovs is first widened to a vmovd, and then converted to a vorr because of the v2f32 vadd.f32. | |
| ; CHECK: vorr [[DL:d[0-9]+]], [[DN:d[0-9]+]] | |
| ; CHECK: , [[DN]] | |
| ; CHECK: %for.body.i | |
| ; CHECK: vadd.f32 [[DL]], [[DL]], [[DN]] | |
| ; | |
| ; This test is verifying: | |
| ; - The VMOVS widening is happening. | |
| ; - Register liveness is verified. | |
| ; - The execution domain switch to vorr works across basic blocks. | |
| define void @Mm() nounwind { | |
| entry: | |
| br label %for.body4 | |
| for.body4: | |
| br label %for.body.i | |
| for.body.i: | |
| %tmp3.i = phi float [ 0.000000e+00, %for.body4 ], [ %add.i, %for.body.i ] | |
| %add.i = fadd float %tmp3.i, 0.000000e+00 | |
| %exitcond.i = icmp eq i32 undef, 41 | |
| br i1 %exitcond.i, label %rInnerproduct.exit, label %for.body.i | |
| rInnerproduct.exit: | |
| store float %add.i, float* undef, align 4 | |
| br label %for.body4 | |
| } |