[PATCH] D28702: AMDGPU: Remove dead pattern

[Matt Arsenault via Phabricator via llvm-commits]

arsenm created this revision.
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Herald added a reviewer: tstellarAMD.
Herald added subscribers: tony-tye, yaxunl, nhaehnle, wdng, kzhuravl.

This is the unsafe conversion pattern, but not guarded by
an unsafe math check. It is also already done in LegalizeDAG.


https://reviews.llvm.org/D28702

Files:
  lib/Target/AMDGPU/SIInstructions.td


Index: lib/Target/AMDGPU/SIInstructions.td
===================================================================
--- lib/Target/AMDGPU/SIInstructions.td
+++ lib/Target/AMDGPU/SIInstructions.td
@@ -457,11 +457,6 @@
 >;
 
 def : Pat <
-  (f16 (fpround f64:$src)),
-  (V_CVT_F16_F32_e32 (V_CVT_F32_F64_e32 $src))
->;
-
-def : Pat <
   (i32 (fp_to_sint f16:$src)),
   (V_CVT_I32_F32_e32 (V_CVT_F32_F16_e32 $src))
 >;


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