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| author | Alan Modra <amodra@gmail.com> | 2010-10-01 12:53:46 +0930 |
|---|---|---|
| committer | Alan Modra <amodra@gcc.gnu.org> | 2010-10-01 12:53:46 +0930 |
| commit | d7e7073f49833266e6edf06da6ca283a824799a4 (patch) | |
| tree | 9425d20e125a4e958f2e235f56b1404ea90c40ad /gcc | |
| parent | c98b08ff4b57a5b9755d84c808618d77c4e90bad (diff) | |
| download | gcc-d7e7073f49833266e6edf06da6ca283a824799a4.zip gcc-d7e7073f49833266e6edf06da6ca283a824799a4.tar.gz gcc-d7e7073f49833266e6edf06da6ca283a824799a4.tar.bz2 | |
re PR target/45807 (Lying eh_frame r2 save info causes crashes with static libgcc_eh and libstdc++)
PR target/45807
* config/rs6000/rs6000.c (rs6000_emit_prologue): Properly sign
extend toc_restore_insn.
From-SVN: r164825
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/config/rs6000/rs6000.c | 4 |
2 files changed, 8 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 056d07a..ea4f385 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2010-10-01 Alan Modra <amodra@gmail.com> + + PR target/45807 + * config/rs6000/rs6000.c (rs6000_emit_prologue): Properly sign + extend toc_restore_insn. + 2010-09-30 Richard Guenther <rguenther@suse.de> PR tree-optimization/43959 diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c index 6399cab..0b058d3 100644 --- a/gcc/config/rs6000/rs6000.c +++ b/gcc/config/rs6000/rs6000.c @@ -20234,8 +20234,8 @@ rs6000_emit_prologue (void) be updated if we arrived at this function via a plt call or toc adjusting stub. */ emit_move_insn (tmp_reg_si, gen_rtx_MEM (SImode, tmp_reg)); - toc_restore_insn = ((TARGET_32BIT ? 0x80410014 : 0xE8410028) - ^ 0x80000000) - 0x80000000; + toc_restore_insn = TARGET_32BIT ? 0x80410014 : 0xE8410028; + toc_restore_insn = (toc_restore_insn ^ 0x80000000) - 0x80000000; emit_insn (gen_xorsi3 (tmp_reg_si, tmp_reg_si, GEN_INT (toc_restore_insn & ~0xffff))); compare_result = gen_rtx_REG (CCUNSmode, CR0_REGNO); |