[PATCH] D148803: [ConstantFolding] Fix crash when folding vector llvm.is.fpclass

[Jay Foad via Phabricator via llvm-commits]

This revision was landed with ongoing or failed builds.
This revision was automatically updated to reflect the committed changes.
Closed by commit rG5fc6425fb6c7: [ConstantFolding] Fix crash when folding vector llvm.is.fpclass (authored by foad).

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D148803/new/

https://reviews.llvm.org/D148803

Files:
  llvm/lib/Analysis/VectorUtils.cpp
  llvm/test/Transforms/InstSimplify/is_fpclass.ll


Index: llvm/test/Transforms/InstSimplify/is_fpclass.ll
===================================================================
--- /dev/null
+++ llvm/test/Transforms/InstSimplify/is_fpclass.ll
@@ -0,0 +1,12 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 2
+; RUN: opt < %s -S -passes=instsimplify | FileCheck %s
+
+define <2 x i1> @f() {
+; CHECK-LABEL: define <2 x i1> @f() {
+; CHECK-NEXT:    ret <2 x i1> zeroinitializer
+;
+  %i = call <2 x i1> @llvm.is.fpclass.v2f16(<2 x half> <half 0xH7C00, half 0xH7C00>, i32 3)
+  ret <2 x i1> %i
+}
+
+declare <2 x i1> @llvm.is.fpclass.v2f16(<2 x half>, i32 immarg)
Index: llvm/lib/Analysis/VectorUtils.cpp
===================================================================
--- llvm/lib/Analysis/VectorUtils.cpp
+++ llvm/lib/Analysis/VectorUtils.cpp
@@ -86,6 +86,7 @@
   case Intrinsic::pow:
   case Intrinsic::fma:
   case Intrinsic::fmuladd:
+  case Intrinsic::is_fpclass:
   case Intrinsic::powi:
   case Intrinsic::canonicalize:
   case Intrinsic::fptosi_sat:
@@ -103,6 +104,7 @@
   case Intrinsic::abs:
   case Intrinsic::ctlz:
   case Intrinsic::cttz:
+  case Intrinsic::is_fpclass:
   case Intrinsic::powi:
     return (ScalarOpdIdx == 1);
   case Intrinsic::smul_fix:


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