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| author | Eric Botcazou <ebotcazou@libertysurf.fr> | 2002-12-19 18:06:46 +0100 |
|---|---|---|
| committer | Eric Botcazou <ebotcazou@gcc.gnu.org> | 2002-12-19 17:06:46 +0000 |
| commit | e54b4cae03726bbceb7c25c8fdcf94bfcb549504 (patch) | |
| tree | 61a17f1acad917bac38601068e07d2ecf4b0bb3e | |
| parent | 7f22efe1d61fc558beafecf6a364cc345f31d69e (diff) | |
| download | gcc-e54b4cae03726bbceb7c25c8fdcf94bfcb549504.zip gcc-e54b4cae03726bbceb7c25c8fdcf94bfcb549504.tar.gz gcc-e54b4cae03726bbceb7c25c8fdcf94bfcb549504.tar.bz2 | |
re PR target/8340 (ICE on x86 inline asm w/ -fPIC)
PR target/8340
* stmt.c (expand_asm_operands): Produce an error when
the PIC register is clobbered.
From-SVN: r60313
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/stmt.c | 11 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/i386-pic-1.c | 18 |
4 files changed, 38 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 073b662..eca6990 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2002-12-19 Eric Botcazou <ebotcazou@libertysurf.fr> + + PR target/8340 + * stmt.c (expand_asm_operands): Produce an error when + the PIC register is clobbered. + 2002-12-18 Daniel Berlin <dberlin@dberlin.org> * Makefile.in (OBJS): Add alloc-pool.o @@ -1509,7 +1509,16 @@ expand_asm_operands (string, outputs, inputs, clobbers, vol, filename, line) /* Mark clobbered registers. */ if (i >= 0) - SET_HARD_REG_BIT (clobbered_regs, i); + { + /* Clobbering the PIC register is an error */ + if ((unsigned) i == PIC_OFFSET_TABLE_REGNUM) + { + error ("PIC register `%s' clobbered in `asm'", regname); + return; + } + + SET_HARD_REG_BIT (clobbered_regs, i); + } } clear_last_expr (); diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index d5f296f..cadf26a 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,7 @@ +2002-12-19 Eric Botcazou <ebotcazou@libertysurf.fr> + + * gcc.dg/i386-pic-1.c: New test. + 2002-12-18 Kriang Lerdsuwanakij <lerdsuwa@users.sourceforge.net> PR c++/8099 diff --git a/gcc/testsuite/gcc.dg/i386-pic-1.c b/gcc/testsuite/gcc.dg/i386-pic-1.c new file mode 100644 index 0000000..4c548bf --- /dev/null +++ b/gcc/testsuite/gcc.dg/i386-pic-1.c @@ -0,0 +1,18 @@ +/* PR target/8340 */ +/* { dg-do compile { target i?86-*-* } } */ +/* { dg-options "-fPIC" } */ + +int foo () +{ + static int a; + + __asm__ __volatile__ ( /* { dg-error "PIC register" } */ + "xorl %%ebx, %%ebx\n" + "movl %%ebx, %0\n" + : "=m" (a) + : + : "%ebx" + ); + + return a; +} |