8311906: Improve robustness of String constructors with mutable array inputs

src/hotspot/cpu/x86/macroAssembler_x86.cpp

@@ -8535,7 +8535,7 @@ void MacroAssembler::char_array_compress(Register src, Register dst, Register le
     evpbroadcastw(tmp2Reg, tmp5, Assembler::AVX_512bit);
 
     testl(len, -64);
-    jcc(Assembler::zero, post_alignment);
+    jccb(Assembler::zero, post_alignment);
 
     movl(tmp5, dst);
     andl(tmp5, (32 - 1));
@@ -8556,7 +8556,7 @@ void MacroAssembler::char_array_compress(Register src, Register dst, Register le
     evmovdquw(tmp1Reg, mask2, Address(src, 0), /*merge*/ false, Assembler::AVX_512bit);
     evpcmpw(mask1, mask2, tmp1Reg, tmp2Reg, Assembler::le, /*signed*/ false, Assembler::AVX_512bit);
     ktestd(mask1, mask2);
-    jcc(Assembler::carryClear, copy_tail);
+    jccb(Assembler::carryClear, copy_tail);
 
     evpmovwb(Address(dst, 0), mask2, tmp1Reg, Assembler::AVX_512bit);
 
@@ -8571,7 +8571,7 @@ void MacroAssembler::char_array_compress(Register src, Register dst, Register le
     movl(tmp5, len);
     andl(tmp5, (32 - 1));    // tail count (in chars)
     andl(len, ~(32 - 1));    // vector count (in chars)
-    jcc(Assembler::zero, copy_loop_tail);
+    jccb(Assembler::zero, copy_loop_tail);
 
     lea(src, Address(src, len, Address::times_2));
     lea(dst, Address(dst, len, Address::times_1));
@@ -8581,13 +8581,13 @@ void MacroAssembler::char_array_compress(Register src, Register dst, Register le
     evmovdquw(tmp1Reg, Address(src, len, Address::times_2), Assembler::AVX_512bit);
     evpcmpuw(mask1, tmp1Reg, tmp2Reg, Assembler::le, Assembler::AVX_512bit);
     kortestdl(mask1, mask1);
-    jcc(Assembler::carryClear, reset_for_copy_tail);
+    jccb(Assembler::carryClear, reset_for_copy_tail);
 
     // All elements in current processed chunk are valid candidates for
     // compression. Write a truncated byte elements to the memory.
     evpmovwb(Address(dst, len, Address::times_1), tmp1Reg, Assembler::AVX_512bit);
     addptr(len, 32);
-    jcc(Assembler::notZero, copy_32_loop);
+    jccb(Assembler::notZero, copy_32_loop);
 
     bind(copy_loop_tail);
     // bail out when there is nothing to be done