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| author | Jakub Jelinek <jakub@redhat.com> | 2020-12-11 12:47:52 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2020-12-11 12:47:52 +0100 |
| commit | 1423318fa778649365f5a73c2c4657733e191820 (patch) | |
| tree | 422bd640d8a22ebf25c619195dd8573a52ee4ff0 /gcc/gcov-io.c | |
| parent | fc7b4248172561a9ee310e2d43d8a485a5c9e108 (diff) | |
| download | gcc-1423318fa778649365f5a73c2c4657733e191820.zip gcc-1423318fa778649365f5a73c2c4657733e191820.tar.gz gcc-1423318fa778649365f5a73c2c4657733e191820.tar.bz2 | |
expand: Fix up expand_doubleword_mod on 32-bit targets [PR98229]
As the testcase shows, for 32-bit word size we can end up with op1
up to 0xffffffff (0x100000000 % 0xffffffff == 1 and so we use bit == 32
for that), but the CONST_INT we got from caller is for DImode in that case
and not valid for SImode operations.
The following patch canonicalizes the two spots where the constant needs
canonicalization.
2020-12-10 Jakub Jelinek <jakub@redhat.com>
PR rtl-optimization/98229
* optabs.c (expand_doubleword_mod): Canonicalize op1 and
1 - INTVAL (op1) as word_mode constants when used in
word_mode arithmetics.
* gcc.c-torture/compile/pr98229.c: New test.
Diffstat (limited to 'gcc/gcov-io.c')
0 files changed, 0 insertions, 0 deletions