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-rw-r--r--llvm/test/CodeGen/AMDGPU/dpp_combine.mir12
1 files changed, 12 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/AMDGPU/dpp_combine.mir b/llvm/test/CodeGen/AMDGPU/dpp_combine.mir
index 613b6c90ead..b58b2ee0edb 100644
--- a/llvm/test/CodeGen/AMDGPU/dpp_combine.mir
+++ b/llvm/test/CodeGen/AMDGPU/dpp_combine.mir
@@ -563,6 +563,18 @@ body: |
%3:vgpr_32 = V_CEIL_F32_e32 %2, implicit $exec
...
+# Do not combine a dpp mov which writes a physreg.
+# GCN-LABEL: name: phys_dpp_mov_dst
+# GCN: $vgpr0 = V_MOV_B32_dpp undef %0:vgpr_32, undef %1:vgpr_32, 1, 15, 15, 1, implicit $exec
+# GCN: %2:vgpr_32 = V_CEIL_F32_e32 $vgpr0, implicit $exec
+name: phys_dpp_mov_dst
+tracksRegLiveness: true
+body: |
+ bb.0:
+ $vgpr0 = V_MOV_B32_dpp undef %1:vgpr_32, undef %0:vgpr_32, 1, 15, 15, 1, implicit $exec
+ %2:vgpr_32 = V_CEIL_F32_e32 $vgpr0, implicit $exec
+...
+
# GCN-LABEL: name: dpp_reg_sequence_both_combined
# GCN: %0:vreg_64 = COPY $vgpr0_vgpr1
# GCN: %1:vreg_64 = COPY $vgpr2_vgpr3
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