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| author | Richard Henderson <rth@redhat.com> | 2011-08-08 11:19:17 -0700 |
|---|---|---|
| committer | Kai Tietz <ktietz@gcc.gnu.org> | 2011-08-08 20:19:17 +0200 |
| commit | 8714c21f19912fbb55bc0e586756fe890b7f5baf (patch) | |
| tree | 3aa9ad12beb7fcc08cde6a07c33e0e0318a83244 | |
| parent | 1ad663a82a1fe4993ac63ca028477916dd9535f1 (diff) | |
| download | gcc-8714c21f19912fbb55bc0e586756fe890b7f5baf.zip gcc-8714c21f19912fbb55bc0e586756fe890b7f5baf.tar.gz gcc-8714c21f19912fbb55bc0e586756fe890b7f5baf.tar.bz2 | |
re PR middle-end/49990 (Regression: Bootstrap failure for x86_64-*-mingw32 in libfortran)
2011-08-08 Richard Henderson <rth@redhat.com>
PR middle-end/49990
* config/i386/i386.c (ix86_expand_prologue): Call
for SEH target gen_prologue_use instead of gen_blockage
at prologue's end.
From-SVN: r177573
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/config/i386/i386.c | 6 |
2 files changed, 11 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index fc23fcb..58945f1 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2011-08-08 Richard Henderson <rth@redhat.com> + + PR middle-end/49990 + * config/i386/i386.c (ix86_expand_prologue): Call + for SEH target gen_prologue_use instead of gen_blockage + at prologue's end. + 2011-08-08 Martin Jambor <mjambor@suse.cz> PR middle-end/49923 diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index b50b3d0..9a21e6b 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -10242,9 +10242,11 @@ ix86_expand_prologue (void) emit_insn (gen_cld ()); /* SEH requires that the prologue end within 256 bytes of the start of - the function. Prevent instruction schedules that would extend that. */ + the function. Prevent instruction schedules that would extend that. + Further, prevent alloca modifications to the stack pointer from being + combined with prologue modifications. */ if (TARGET_SEH) - emit_insn (gen_blockage ()); + emit_insn (gen_prologue_use (stack_pointer_rtx)); } /* Emit code to restore REG using a POP insn. */ |