https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85489
Bug ID: 85489 Summary: config/x86/sjlj.S should use unsigned integer to unwind shadow stack Product: gcc Version: 8.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: libitm Assignee: unassigned at gcc dot gnu.org Reporter: hjl.tools at gmail dot com CC: igor.v.tsimbalist at intel dot com Blocks: 81652 Target Milestone: --- Target: x86_64-*-*, i?86-*-* config/x86/sjlj.S has cmpq $255, %rcx jle .L3 ^^^ Should be "jbe". movl $255, %edi .p2align 4,,10 .p2align 3 .L4: incsspq %rdi subq $255, %rcx cmpq $255, %rcx jg .L4 ^^^ Should be "ja". .L3: incsspq %rcx .L1: and cmpl $255, %ecx jle .L3 ^^^ Should be "jbe". pushl %eax movl $255, %eax .p2align 4,,10 .p2align 3 .L4: incsspd %eax subl $255, %ecx cmpl $255, %ecx jg .L4 ^^^ Should be "ja". popl %eax .L3: incsspd %ecx .L1: Referenced Bugs: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81652 [Bug 81652] [meta-bug] -fcf-protection=full bugs