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| author | dj <dj@138bc75d-0d04-0410-961f-82ee72b054a4> | 2001-01-31 19:05:49 +0000 |
|---|---|---|
| committer | dj <dj@138bc75d-0d04-0410-961f-82ee72b054a4> | 2001-01-31 19:05:49 +0000 |
| commit | 3664abd294ce3670f7d68bcf86eb915fd79981eb (patch) | |
| tree | 3b31354684a89f542ccdbbd80b48703981355637 /gcc/expmed.c | |
| parent | b10b344f7b4ce85095b76c8947a5c7b96313a27d (diff) | |
| download | gcc-3664abd294ce3670f7d68bcf86eb915fd79981eb.tar.gz | |
* expmed.c (extract_bit_field): allow non-integral modes if we
want to extract a whole register from itself.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@39381 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/expmed.c')
| -rw-r--r-- | gcc/expmed.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/expmed.c b/gcc/expmed.c index 5a2e7f0131e..6eb5f9ebfee 100644 --- a/gcc/expmed.c +++ b/gcc/expmed.c @@ -1027,6 +1027,15 @@ extract_bit_field (str_rtx, bitsize, bitnum, unsignedp, op0 = SUBREG_REG (op0); } + if (GET_CODE (op0) == REG + && mode == GET_MODE (op0) + && bitnum == 0 + && bitsize == GET_MODE_BITSIZE (GET_MODE (op0))) + { + /* We're trying to extract a full register from itself. */ + return op0; + } + /* Make sure we are playing with integral modes. Pun with subregs if we aren't. */ { |