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| author | Alan Modra <amodra@bigpond.net.au> | 2004-12-01 05:47:51 +0000 |
|---|---|---|
| committer | Alan Modra <amodra@gcc.gnu.org> | 2004-12-01 16:17:51 +1030 |
| commit | eab97e449ba769f0a8f4cf5cd69970bbf38de38f (patch) | |
| tree | cdfc477d8ebb1587643e2f19f4bfc6ffb3ddc44b /gcc/config | |
| parent | 683e261713dde5b47a89e2b5f1938807a83a53cd (diff) | |
| download | gcc-eab97e449ba769f0a8f4cf5cd69970bbf38de38f.zip gcc-eab97e449ba769f0a8f4cf5cd69970bbf38de38f.tar.gz gcc-eab97e449ba769f0a8f4cf5cd69970bbf38de38f.tar.bz2 | |
re PR target/12817 ([SYSV] Altivec code generation error with many registers used)
PR target/12817
* config/rs6000/rs6000.c (rs6000_emit_prologue): Use r0 for vrsave.
From-SVN: r91553
Diffstat (limited to 'gcc/config')
| -rw-r--r-- | gcc/config/rs6000/rs6000.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c index 285996838..d9b363a 100644 --- a/gcc/config/rs6000/rs6000.c +++ b/gcc/config/rs6000/rs6000.c @@ -14030,8 +14030,10 @@ rs6000_emit_prologue (void) rtx reg, mem, vrsave; int offset; - /* Get VRSAVE onto a GPR. */ - reg = gen_rtx_REG (SImode, 12); + /* Get VRSAVE onto a GPR. Note that ABI_V4 might be using r12 + as frame_reg_rtx and r11 as the static chain pointer for + nested functions. */ + reg = gen_rtx_REG (SImode, 0); vrsave = gen_rtx_REG (SImode, VRSAVE_REGNO); if (TARGET_MACHO) emit_insn (gen_get_vrsave_internal (reg)); |