| # RUN: llc -o - %s -mtriple=armv7s-- -run-pass=machine-cp | FileCheck %s |
| --- |
| # Test that machine copy prop recognizes the implicit-def operands on a COPY |
| # as clobbering the register. |
| # CHECK-LABEL: name: func |
| # CHECK: $d2 = VMOVv2i32 2, 14, $noreg |
| # CHECK: $s5 = COPY $s0, implicit $q1, implicit-def $q1 |
| # CHECK: VST1q32 $r0, 0, $q1, 14, $noreg |
| # The following two COPYs must not be removed |
| # CHECK: $s4 = COPY $s20, implicit-def $q1 |
| # CHECK: $s5 = COPY $s0, implicit killed $d0, implicit $q1, implicit-def $q1 |
| # CHECK: VST1q32 $r2, 0, $q1, 14, $noreg |
| name: func |
| body: | |
| bb.0: |
| $d2 = VMOVv2i32 2, 14, $noreg |
| $s5 = COPY $s0, implicit $q1, implicit-def $q1 |
| VST1q32 $r0, 0, $q1, 14, $noreg |
| $s4 = COPY $s20, implicit-def $q1 |
| $s5 = COPY $s0, implicit killed $d0, implicit $q1, implicit-def $q1 |
| VST1q32 $r2, 0, $q1, 14, $noreg |
| ... |
