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| author | Uros Bizjak <ubizjak@gmail.com> | 2006-12-08 19:20:25 +0100 |
|---|---|---|
| committer | Uros Bizjak <uros@gcc.gnu.org> | 2006-12-08 19:20:25 +0100 |
| commit | 4280a3e362da8fbf6236b723f544ea598a00c9be (patch) | |
| tree | d5926ab1190fe1d080932c18c3f0cf070e65bdb5 /gcc/reg-stack.c | |
| parent | 4efc447f98b3fb3ab60b79784e8f7ab88a8c7dc9 (diff) | |
| download | gcc-4280a3e362da8fbf6236b723f544ea598a00c9be.zip gcc-4280a3e362da8fbf6236b723f544ea598a00c9be.tar.gz gcc-4280a3e362da8fbf6236b723f544ea598a00c9be.tar.bz2 | |
re PR target/30120 (silent miscompilation of argument passing)
PR target/30120
* reg-stack.c (convert_regs_entry): Mark current argument passing
registers as live.
* config/i386/i386.h (X87_REGPARM_MAX): Set to 0 to disable passing
of float arguments in x87 registers.
testsuite/ChangeLog:
* gcc.target/i386/x87regparm-1.c: XFAIL.
* gcc.target/i386/x87regparm-2.c: XFAIL.
* gcc.target/i386/x87regparm-3.c: XFAIL.
* gcc.target/i386/x87regparm-4.c: XFAIL.
From-SVN: r119663
Diffstat (limited to 'gcc/reg-stack.c')
| -rw-r--r-- | gcc/reg-stack.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/reg-stack.c b/gcc/reg-stack.c index 57924ce..327cee5 100644 --- a/gcc/reg-stack.c +++ b/gcc/reg-stack.c @@ -2595,7 +2595,8 @@ convert_regs_entry (void) int reg, top = -1; for (reg = LAST_STACK_REG; reg >= FIRST_STACK_REG; --reg) - if (TEST_HARD_REG_BIT (bi->stack_in.reg_set, reg)) + if (TEST_HARD_REG_BIT (bi->stack_in.reg_set, reg) + || TEST_HARD_REG_BIT (incoming_regs, reg)) { rtx init; |