[AMDGPU] remove unused AssemblerPredicates

An internal build is hitting asserts complaining about too many subtarget
features:
  llvm/utils/TableGen/Types.cpp:42:
    const char* llvm::getMinimalTypeForEnumBitfield(uint64_t):
    Assertion `MaxIndex <= 64 && "Too many bits"' failed.

  llvm/utils/TableGen/AsmMatcherEmitter.cpp:1476:
    void {anonymous}::AsmMatcherInfo::buildInfo():
    Assertion `SubtargetFeatures.size() <= 64 && "Too many subtarget features!"'
    failed.

The short-term solution is to remove a few unused AssemblerPredicates to get
under the limit.

The long-term solution seems to be to revisit these asserts. E.g., rather than
hardcoded '64', use the standard sized std::bitset like the other places that
track subtarget features.

Differential Revision: https://reviews.llvm.org/D58516

llvm-svn: 354604

diff --git a/llvm/lib/Target/AMDGPU/AMDGPU.td b/llvm/lib/Target/AMDGPU/AMDGPU.td
index 0b0c125..828bf84 100644 (file)
--- a/llvm/lib/Target/AMDGPU/AMDGPU.td
+++ b/llvm/lib/Target/AMDGPU/AMDGPU.td
@@ -721,17 +721,13 @@ def HasDSAddTid : Predicate<"Subtarget->getGeneration() >= AMDGPUSubtarget::GFX9
 def HasAddNoCarryInsts : Predicate<"Subtarget->hasAddNoCarry()">,
   AssemblerPredicate<"FeatureAddNoCarryInsts">;
 
-def NotHasAddNoCarryInsts : Predicate<"!Subtarget->hasAddNoCarry()">,
-  AssemblerPredicate<"!FeatureAddNoCarryInsts">;
+def NotHasAddNoCarryInsts : Predicate<"!Subtarget->hasAddNoCarry()">;
 
 def Has16BitInsts : Predicate<"Subtarget->has16BitInsts()">,
   AssemblerPredicate<"Feature16BitInsts">;
 def HasVOP3PInsts : Predicate<"Subtarget->hasVOP3PInsts()">,
   AssemblerPredicate<"FeatureVOP3P">;
 
-def NotHasVOP3PInsts : Predicate<"!Subtarget->hasVOP3PInsts()">,
-  AssemblerPredicate<"!FeatureVOP3P">;
-
 def HasSDWA : Predicate<"Subtarget->hasSDWA()">,
   AssemblerPredicate<"FeatureSDWA,FeatureVolcanicIslands">;