1.1 --- a/src/cpu/x86/vm/x86_32.ad Tue Oct 09 10:09:34 2012 -0700
1.2 +++ b/src/cpu/x86/vm/x86_32.ad Fri Oct 12 09:22:52 2012 -0700
1.3 @@ -1424,6 +1424,11 @@
1.4 return true;
1.5 }
1.6
1.7 +bool Matcher::narrow_klass_use_complex_address() {
1.8 + ShouldNotCallThis();
1.9 + return true;
1.10 +}
1.11 +
1.12
1.13 // Is it better to copy float constants, or load them directly from memory?
1.14 // Intel can load a float constant from a direct address, requiring no
1.15 @@ -1553,9 +1558,6 @@
1.16 // Returns true if the high 32 bits of the value is known to be zero.
1.17 bool is_operand_hi32_zero(Node* n) {
1.18 int opc = n->Opcode();
1.19 - if (opc == Op_LoadUI2L) {
1.20 - return true;
1.21 - }
1.22 if (opc == Op_AndL) {
1.23 Node* o2 = n->in(2);
1.24 if (o2->is_Con() && (o2->get_long() & 0xFFFFFFFF00000000LL) == 0LL) {
1.25 @@ -6147,8 +6149,8 @@
1.26 %}
1.27
1.28 // Load Unsigned Integer into Long Register
1.29 -instruct loadUI2L(eRegL dst, memory mem, eFlagsReg cr) %{
1.30 - match(Set dst (LoadUI2L mem));
1.31 +instruct loadUI2L(eRegL dst, memory mem, immL_32bits mask, eFlagsReg cr) %{
1.32 + match(Set dst (AndL (ConvI2L (LoadI mem)) mask));
1.33 effect(KILL cr);
1.34
1.35 ins_cost(250);
