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| author | Daniel Jacobowitz <dan@codesourcery.com> | 2008-02-23 15:45:03 +0000 |
|---|---|---|
| committer | Daniel Jacobowitz <drow@gcc.gnu.org> | 2008-02-23 15:45:03 +0000 |
| commit | 8ddcfde143971709cc4c45d0c9de1e3b511b77aa (patch) | |
| tree | 84e9fb8c32865e229b5d07b01784d8d73cbd761c | |
| parent | 84495fd9b77ce40bcde7604dda738738bb52cd27 (diff) | |
| download | gcc-8ddcfde143971709cc4c45d0c9de1e3b511b77aa.zip gcc-8ddcfde143971709cc4c45d0c9de1e3b511b77aa.tar.gz gcc-8ddcfde143971709cc4c45d0c9de1e3b511b77aa.tar.bz2 | |
expmed.c (extract_bit_field): Always use adjust_address for MEM.
* expmed.c (extract_bit_field): Always use adjust_address for MEM.
* gcc.c-torture/execute/20080222-1.c: New test.
From-SVN: r132573
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/expmed.c | 19 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.c-torture/execute/20080222-1.c | 22 |
4 files changed, 38 insertions, 11 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 9a90b88..f33f1d3 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +2008-02-23 Daniel Jacobowitz <dan@codesourcery.com> + + * expmed.c (extract_bit_field): Always use adjust_address for MEM. + 2008-02-23 Uros Bizjak <ubizjak@gmail.com> PR target/22076 diff --git a/gcc/expmed.c b/gcc/expmed.c index 09a58de..04071d3 100644 --- a/gcc/expmed.c +++ b/gcc/expmed.c @@ -1339,18 +1339,15 @@ extract_bit_field_1 (rtx str_rtx, unsigned HOST_WIDE_INT bitsize, || (offset * BITS_PER_UNIT % bitsize == 0 && MEM_ALIGN (op0) % bitsize == 0))))) { - if (mode1 != GET_MODE (op0)) + if (MEM_P (op0)) + op0 = adjust_address (op0, mode1, offset); + else if (mode1 != GET_MODE (op0)) { - if (MEM_P (op0)) - op0 = adjust_address (op0, mode1, offset); - else - { - rtx sub = simplify_gen_subreg (mode1, op0, GET_MODE (op0), - byte_offset); - if (sub == NULL) - goto no_subreg_mode_swap; - op0 = sub; - } + rtx sub = simplify_gen_subreg (mode1, op0, GET_MODE (op0), + byte_offset); + if (sub == NULL) + goto no_subreg_mode_swap; + op0 = sub; } if (mode1 != mode) return convert_to_mode (tmode, op0, unsignedp); diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 21776c4..b111ef4 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,7 @@ +2008-02-23 Daniel Jacobowitz <dan@codesourcery.com> + + * gcc.c-torture/execute/20080222-1.c: New test. + 2008-02-23 Uros Bizjak <ubizjak@gmail.com> PR target/22076 diff --git a/gcc/testsuite/gcc.c-torture/execute/20080222-1.c b/gcc/testsuite/gcc.c-torture/execute/20080222-1.c new file mode 100644 index 0000000..6db83cc --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/execute/20080222-1.c @@ -0,0 +1,22 @@ +extern void abort (void); + +struct container +{ + unsigned char data[1]; +}; + +unsigned char space[6] = {1, 2, 3, 4, 5, 6}; + +int +foo (struct container *p) +{ + return p->data[4]; +} + +int +main () +{ + if (foo ((struct container *) space) != 5) + abort (); + return 0; +} |