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| author | Richard Sandiford <rsandifo@redhat.com> | 2004-08-05 07:13:56 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2004-08-05 07:13:56 +0000 |
| commit | ea5f7a19924085268110c3f0bfa01da3456b4e85 (patch) | |
| tree | 6da5d9b96b65f4dc9716e0104c3010cbd6600df8 /gcc | |
| parent | fce731b52f63132ac56268b256b11acc4f652cbd (diff) | |
| download | gcc-ea5f7a19924085268110c3f0bfa01da3456b4e85.zip gcc-ea5f7a19924085268110c3f0bfa01da3456b4e85.tar.gz gcc-ea5f7a19924085268110c3f0bfa01da3456b4e85.tar.bz2 | |
i386.c (ix86_expand_prologue): If the function uses a frame pointer, restore eax with an ebp-relative address.
* config/i386/i386.c (ix86_expand_prologue): If the function uses a
frame pointer, restore eax with an ebp-relative address.
From-SVN: r85595
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/i386/i386.c | 9 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.c-torture/execute/20040805-1.c | 31 |
4 files changed, 48 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 47916a6..5df2195 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2004-08-05 Richard Sandiford <rsandifo@redhat.com> + + * config/i386/i386.c (ix86_expand_prologue): If the function uses a + frame pointer, restore eax with an ebp-relative address. + 2004-08-04 Geoffrey Keating <geoffk@apple.com> PR 14516 diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index 5b37ea8..f05ff5e 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -5399,7 +5399,14 @@ ix86_expand_prologue (void) if (eax_live) { - rtx t = plus_constant (stack_pointer_rtx, allocate); + rtx t; + if (frame_pointer_needed) + t = plus_constant (hard_frame_pointer_rtx, + allocate + - frame.to_allocate + - frame.nregs * UNITS_PER_WORD); + else + t = plus_constant (stack_pointer_rtx, allocate); emit_move_insn (eax, gen_rtx_MEM (SImode, t)); } } diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 94e6a79..3eadb5a 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,7 @@ +2004-08-05 Richard Sandiford <rsandifo@redhat.com> + + * gcc.c-torture/execute/20040805-1.c: New test. + 2004-08-04 Andrew Pinski <pinskia@physics.uc.edu> * gcc.dg/20020118-1.c: Declare abort. diff --git a/gcc/testsuite/gcc.c-torture/execute/20040805-1.c b/gcc/testsuite/gcc.c-torture/execute/20040805-1.c new file mode 100644 index 0000000..f09fc49 --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/execute/20040805-1.c @@ -0,0 +1,31 @@ +#if __INT_MAX__ < 32768 || (defined(STACK_SIZE) && STACK_SIZE < 0x12000) +int main () { exit (0); } +#else +int a[2] = { 2, 3 }; + +static int __attribute__((noinline)) +bar (int x, void *b) +{ + a[0]++; + return x; +} + +static int __attribute__((noinline)) +foo (int x) +{ + char buf[0x10000]; + int y = a[0]; + a[1] = y; + x = bar (x, buf); + y = bar (y, buf); + return x + y; +} + +int +main () +{ + if (foo (100) != 102) + abort (); + exit (0); +} +#endif |