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| author | Jakub Jelinek <jakub@redhat.com> | 2018-04-24 09:40:04 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2018-04-24 09:40:04 +0200 |
| commit | b72139eac230616ab92636cd0195b44eb235d23f (patch) | |
| tree | 60c06b3c9782aba4674cc874903b46bdb5af2143 /gcc/reg-stack.c | |
| parent | 950ec7e90aa1403b7be690b46bf01953d54f7f15 (diff) | |
| download | gcc-b72139eac230616ab92636cd0195b44eb235d23f.zip gcc-b72139eac230616ab92636cd0195b44eb235d23f.tar.gz gcc-b72139eac230616ab92636cd0195b44eb235d23f.tar.bz2 | |
re PR target/84828 (ICE in verify_flow_info at gcc/cfghooks.c:265)
PR target/84828
* reg-stack.c (move_for_stack_reg): Don't fail assertion about dead
destination if any_malformed_asm.
From-SVN: r259591
Diffstat (limited to 'gcc/reg-stack.c')
| -rw-r--r-- | gcc/reg-stack.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/gcc/reg-stack.c b/gcc/reg-stack.c index 73bb4fc..519ea6d 100644 --- a/gcc/reg-stack.c +++ b/gcc/reg-stack.c @@ -1105,13 +1105,16 @@ move_for_stack_reg (rtx_insn *insn, stack_ptr regstack, rtx pat) } /* The destination ought to be dead. */ - gcc_assert (get_hard_regnum (regstack, dest) < FIRST_STACK_REG); - - replace_reg (psrc, get_hard_regnum (regstack, src)); + if (get_hard_regnum (regstack, dest) >= FIRST_STACK_REG) + gcc_assert (any_malformed_asm); + else + { + replace_reg (psrc, get_hard_regnum (regstack, src)); - regstack->reg[++regstack->top] = REGNO (dest); - SET_HARD_REG_BIT (regstack->reg_set, REGNO (dest)); - replace_reg (pdest, FIRST_STACK_REG); + regstack->reg[++regstack->top] = REGNO (dest); + SET_HARD_REG_BIT (regstack->reg_set, REGNO (dest)); + replace_reg (pdest, FIRST_STACK_REG); + } } else if (STACK_REG_P (src)) { |