return false;
Type *Ty = GVA->getValueType();
+
+ // It is possible that the type of the global is unsized, i.e. a declaration
+ // of a extern struct. In this case don't presume it is in the small data
+ // section. This happens e.g. when building the FreeBSD kernel.
+ if (!Ty->isSized())
+ return false;
+
return IsInSmallSection(
GVA->getParent()->getDataLayout().getTypeAllocSize(Ty));
}
--- /dev/null
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; Check that -mgpopt doesn't crash on unsized externals
+; RUN: llc -mtriple=mips64-unknown-freebsd -mattr=+noabicalls -target-abi n64 -mgpopt -o - %s | FileCheck %s
+
+%struct.a = type opaque
+
+@b = external global %struct.a, align 1
+
+; Function Attrs: norecurse nounwind readnone
+define %struct.a* @d() {
+; CHECK-LABEL: d:
+; CHECK: # %bb.0: # %entry
+; CHECK-NEXT: lui $1, %highest(b)
+; CHECK-NEXT: daddiu $1, $1, %higher(b)
+; CHECK-NEXT: dsll $1, $1, 16
+; CHECK-NEXT: daddiu $1, $1, %hi(b)
+; CHECK-NEXT: dsll $1, $1, 16
+; CHECK-NEXT: jr $ra
+; CHECK-NEXT: daddiu $2, $1, %lo(b)
+entry:
+ ret %struct.a* @b
+}