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-rw-r--r--gcc/unwind-dw2.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/gcc/unwind-dw2.c b/gcc/unwind-dw2.c
index c2619bd8898..ef9b33bddbf 100644
--- a/gcc/unwind-dw2.c
+++ b/gcc/unwind-dw2.c
@@ -705,7 +705,14 @@ execute_cfa_program (const unsigned char *insn_ptr,
/* Don't allow remember/restore between CIE and FDE programs. */
fs->regs.prev = NULL;
- while (insn_ptr < insn_end && fs->pc <= context->ra)
+ /* The comparison with the return address uses < rather than <= because
+ we are only interested in the effects of code before the call; for a
+ noreturn function, the return address may point to unrelated code with
+ a different stack configuration that we are not interested in. We
+ assume that the call itself is unwind info-neutral; if not, or if
+ there are delay instructions that adjust the stack, these must be
+ reflected at the point immediately before the call insn. */
+ while (insn_ptr < insn_end && fs->pc < context->ra)
{
unsigned char insn = *insn_ptr++;
_Unwind_Word reg, utmp;