diff options
| author | Dave Korn <dave.korn.cygwin@gmail.com> | 2009-01-31 17:34:03 +0000 |
|---|---|---|
| committer | H.J. Lu <hjl@gcc.gnu.org> | 2009-01-31 09:34:03 -0800 |
| commit | 8d0b6068b550226ed80e62af3bb5b3da171d7802 (patch) | |
| tree | 36489c5c2d00d1f0307ed004016dc1b600764d43 | |
| parent | b39dea08d9057f4e76e62e9ef58686da4deb67d9 (diff) | |
| download | gcc-8d0b6068b550226ed80e62af3bb5b3da171d7802.zip gcc-8d0b6068b550226ed80e62af3bb5b3da171d7802.tar.gz gcc-8d0b6068b550226ed80e62af3bb5b3da171d7802.tar.bz2 | |
re PR target/38952 (EH does not work.)
2009-01-31 Dave Korn <dave.korn.cygwin@gmail.com>
PR target/38952
* config/i386/i386.c (ix86_builtin_setjmp_frame_value): New.
(TARGET_BUILTIN_SETJMP_FRAME_VALUE): Override default to point
at it.
From-SVN: r143823
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/config/i386/i386.c | 14 |
2 files changed, 21 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 96051f6..194b0f0 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2009-01-31 Dave Korn <dave.korn.cygwin@gmail.com> + + PR target/38952 + * config/i386/i386.c (ix86_builtin_setjmp_frame_value): New. + (TARGET_BUILTIN_SETJMP_FRAME_VALUE): Override default to point + at it. + 2009-01-31 Richard Guenther <rguenther@suse.de> PR tree-optimization/38937 diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index c60ec5a..c7ddce1 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -7497,6 +7497,17 @@ ix86_initial_elimination_offset (int from, int to) } } +/* In a dynamically-aligned function, we can't know the offset from + stack pointer to frame pointer, so we must ensure that setjmp + eliminates fp against the hard fp (%ebp) rather than trying to + index from %esp up to the top of the frame across a gap that is + of unknown (at compile-time) size. */ +static rtx +ix86_builtin_setjmp_frame_value (void) +{ + return stack_realign_fp ? hard_frame_pointer_rtx : virtual_stack_vars_rtx; +} + /* Fill structure ix86_frame about frame of currently computed function. */ static void @@ -29542,6 +29553,9 @@ ix86_enum_va_list (int idx, const char **pname, tree *ptree) #undef TARGET_MACHINE_DEPENDENT_REORG #define TARGET_MACHINE_DEPENDENT_REORG ix86_reorg +#undef TARGET_BUILTIN_SETJMP_FRAME_VALUE +#define TARGET_BUILTIN_SETJMP_FRAME_VALUE ix86_builtin_setjmp_frame_value + #undef TARGET_BUILD_BUILTIN_VA_LIST #define TARGET_BUILD_BUILTIN_VA_LIST ix86_build_builtin_va_list |