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Diffstat (limited to 'test/CodeGen/ARM/machine-copyprop.mir')
| -rw-r--r-- | test/CodeGen/ARM/machine-copyprop.mir | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/test/CodeGen/ARM/machine-copyprop.mir b/test/CodeGen/ARM/machine-copyprop.mir new file mode 100644 index 0000000000000..9be595f690dbc --- /dev/null +++ b/test/CodeGen/ARM/machine-copyprop.mir @@ -0,0 +1,22 @@ +# 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, _ +# CHECK: %s5 = COPY %s0, implicit %q1, implicit-def %q1 +# CHECK: VST1q32 %r0, 0, %q1, 14, _ +# 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, _ +name: func +body: | + bb.0: + %d2 = VMOVv2i32 2, 14, _ + %s5 = COPY %s0, implicit %q1, implicit-def %q1 + VST1q32 %r0, 0, %q1, 14, _ + %s4 = COPY %s20, implicit-def %q1 + %s5 = COPY %s0, implicit killed %d0, implicit %q1, implicit-def %q1 + VST1q32 %r2, 0, %q1, 14, _ +... |