================
@@ -12127,6 +12127,49 @@ bool VectorExprEvaluator::VisitCallExpr(const CallExpr
*E) {
return Success(APValue(ResultElements.data(), ResultElements.size()), E);
}
+ case X86::BI__builtin_ia32_pslldqi128_byteshift:
+ case X86::BI__builtin_ia32_psrldqi128_byteshift:
+ case X86::BI__builtin_ia32_pslldqi256_byteshift:
+ case X86::BI__builtin_ia32_psrldqi256_byteshift:
+ case X86::BI__builtin_ia32_pslldqi512_byteshift:
+ case X86::BI__builtin_ia32_psrldqi512_byteshift: {
+ APSInt Amt;
+ if (!EvaluateInteger(E->getArg(1), Amt, Info))
+ return false;
+ unsigned ShiftVal = (unsigned)Amt.getZExtValue() & 0xff;
+
+ APValue Vec;
+ if (!Evaluate(Vec, Info, E->getArg(0)) || !Vec.isVector())
+ return false;
+
+ unsigned NumElts = Vec.getVectorLength();
+ const unsigned LaneBytes = 16;
+ assert(NumElts % LaneBytes == 0);
+
+ SmallVector<APValue, 64> Result;
+ Result.resize(NumElts, APValue(0));
+
+ bool IsLeft =
+ (E->getBuiltinCallee() == X86::BI__builtin_ia32_pslldqi128_byteshift ||
+ E->getBuiltinCallee() == X86::BI__builtin_ia32_pslldqi256_byteshift ||
+ E->getBuiltinCallee() == X86::BI__builtin_ia32_pslldqi512_byteshift);
+
+ if (ShiftVal >= LaneBytes)
+ return ZeroInitialization(E);
+
+ for (unsigned laneBase = 0; laneBase < NumElts; laneBase += LaneBytes) {
----------------
RKSimon wrote:
(style) laneBase -> LaneBase (always capitalise 1st letter of a variable)
https://github.com/llvm/llvm-project/pull/157403
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