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comparison src/cpu/sparc/vm/sharedRuntime_sparc.cpp @ 6792:137868b7aa6f

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7196199: java/text/Bidi/Bug6665028.java failed: Bidi run count incorrect Summary: Save whole XMM/YMM registers in safepoint interrupt handler. Reviewed-by: roland, twisti
author kvn
date Mon, 17 Sep 2012 19:39:07 -0700
parents 2cb2f30450c7
children 18fb7da42534
comparison
equal deleted inserted replaced
6791:8d3cc6612bd1 6792:137868b7aa6f
309 // Now reload the 64bit Oregs after we've restore the window. 309 // Now reload the 64bit Oregs after we've restore the window.
310 __ ldx(G2_thread, JavaThread::o_reg_temps_offset_in_bytes()+0*8, O0); 310 __ ldx(G2_thread, JavaThread::o_reg_temps_offset_in_bytes()+0*8, O0);
311 __ ldx(G2_thread, JavaThread::o_reg_temps_offset_in_bytes()+1*8, O1); 311 __ ldx(G2_thread, JavaThread::o_reg_temps_offset_in_bytes()+1*8, O1);
312 #endif /* _LP64 */ 312 #endif /* _LP64 */
313 313
314 }
315
316 // Is vector's size (in bytes) bigger than a size saved by default?
317 // 8 bytes FP registers are saved by default on SPARC.
318 bool SharedRuntime::is_wide_vector(int size) {
319 // Note, MaxVectorSize == 8 on SPARC.
320 assert(size <= 8, err_msg_res("%d bytes vectors are not supported", size));
321 return size > 8;
314 } 322 }
315 323
316 // The java_calling_convention describes stack locations as ideal slots on 324 // The java_calling_convention describes stack locations as ideal slots on
317 // a frame with no abi restrictions. Since we must observe abi restrictions 325 // a frame with no abi restrictions. Since we must observe abi restrictions
318 // (like the placement of the register window) the slots must be biased by 326 // (like the placement of the register window) the slots must be biased by
3732 // the adjusted FP off to the GC stack-crawler: this will modify the caller's 3740 // the adjusted FP off to the GC stack-crawler: this will modify the caller's
3733 // SP and mess up HIS OopMaps. So we first adjust the caller's SP, then save 3741 // SP and mess up HIS OopMaps. So we first adjust the caller's SP, then save
3734 // the 64-bit %o's, then do a save, then fixup the caller's SP (our FP). 3742 // the 64-bit %o's, then do a save, then fixup the caller's SP (our FP).
3735 // Tricky, tricky, tricky... 3743 // Tricky, tricky, tricky...
3736 3744
3737 SafepointBlob* SharedRuntime::generate_handler_blob(address call_ptr, bool cause_return) { 3745 SafepointBlob* SharedRuntime::generate_handler_blob(address call_ptr, int poll_type) {
3738 assert (StubRoutines::forward_exception_entry() != NULL, "must be generated before"); 3746 assert (StubRoutines::forward_exception_entry() != NULL, "must be generated before");
3739 3747
3740 // allocate space for the code 3748 // allocate space for the code
3741 ResourceMark rm; 3749 ResourceMark rm;
3742 // setup code generation tools 3750 // setup code generation tools
3750 OopMapSet *oop_maps = new OopMapSet(); 3758 OopMapSet *oop_maps = new OopMapSet();
3751 OopMap* map = NULL; 3759 OopMap* map = NULL;
3752 3760
3753 int start = __ offset(); 3761 int start = __ offset();
3754 3762
3763 bool cause_return = (poll_type == POLL_AT_RETURN);
3755 // If this causes a return before the processing, then do a "restore" 3764 // If this causes a return before the processing, then do a "restore"
3756 if (cause_return) { 3765 if (cause_return) {
3757 __ restore(); 3766 __ restore();
3758 } else { 3767 } else {
3759 // Make it look like we were called via the poll 3768 // Make it look like we were called via the poll