TSX: improve transaction repeat handling

Handle status 0 as fatal.
2020-10-19 00:43:40 +03:00
parent a5eb11d79f
commit 44c90c060a
1 changed files with 4 additions and 0 deletions
@@ -285,6 +285,10 @@ asmjit::Label asmjit::build_transaction_enter(asmjit::X86Assembler& c, asmjit::L
 		c.test(x86::eax, _XABORT_EXPLICIT);
 		c.jnz(fallback);

+		// Don't repeat on weird zero status
+		c.test(x86::eax, x86::eax);
+		c.jz(fallback);
+
 		// Count an attempt without RETRY flag as 65 normal attempts and continue
 		c.push(x86::rax);
 		c.not_(x86::eax);