[AMDGPU] Remove unused True16 patterns.

[kosarev]

No tests seem to need them here or downstream.

[kosarev]

• [AMDGPU] Remove unused True16 patterns. #163784 👈 (View in Graphite)
• main

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[llvmbot]

@llvm/pr-subscribers-backend-amdgpu

Author: Ivan Kosarev (kosarev)

Changes

No tests seem to need them here or downstream.

---

Full diff: https://github.com/llvm/llvm-project/pull/163784.diff

1 Files Affected:

• (modified) llvm/lib/Target/AMDGPU/SIInstructions.td (-24)

diff --git a/llvm/lib/Target/AMDGPU/SIInstructions.td b/llvm/lib/Target/AMDGPU/SIInstructions.td
index 27e5ee9cd4d62..74d41532170a6 100644
--- a/llvm/lib/Target/AMDGPU/SIInstructions.td
+++ b/llvm/lib/Target/AMDGPU/SIInstructions.td
@@ -3481,30 +3481,6 @@ def : GCNPat<
 >;
 } // End True16Predicate
 
-let True16Predicate = UseRealTrue16Insts in {
-def : GCNPat<
-  (fcanonicalize (f16 (VOP3Mods f16:$src, i32:$src_mods))),
-  (V_MUL_F16_t16_e64 0, (i16 CONST.FP16_ONE), $src_mods, $src, 0/*Clamp*/, /*omod*/0, /*opsel*/0)
->;
-
-def : GCNPat<
-  (fcanonicalize (f16 (fneg (VOP3Mods f16:$src, i32:$src_mods)))),
-  (V_MUL_F16_t16_e64 0, (i16 CONST.FP16_NEG_ONE), $src_mods, $src, 0/*Clamp*/, /*omod*/0, /*opsel*/0)
->;
-} // End True16Predicate
-
-let True16Predicate = UseFakeTrue16Insts in {
-def : GCNPat<
-  (fcanonicalize (f16 (VOP3Mods f16:$src, i32:$src_mods))),
-  (V_MUL_F16_fake16_e64 0, (i32 CONST.FP16_ONE), $src_mods, $src)
->;
-
-def : GCNPat<
-  (fcanonicalize (f16 (fneg (VOP3Mods f16:$src, i32:$src_mods)))),
-  (V_MUL_F16_fake16_e64 0, (i32 CONST.FP16_NEG_ONE), $src_mods, $src)
->;
-} // End True16Predicate
-
 def : GCNPat<
   (fcanonicalize (v2f16 (VOP3PMods v2f16:$src, i32:$src_mods))),
   (V_PK_MUL_F16 0, (i32 CONST.FP16_ONE), $src_mods, $src, DSTCLAMP.NONE)

[Sisyph]

LGTM