| commit | 89b07b7d2e00f7024e9b0ea17d60c62a17f7abf5 | |
| author | segher <segher@138bc75d-0d04-0410-961f-82ee72b054a4> | |
| Mon, 14 Dec 2015 16:13:33 +0000 (14 16:13 +0000) | ||
| committer | segher <segher@138bc75d-0d04-0410-961f-82ee72b054a4> | |
| Mon, 14 Dec 2015 16:13:33 +0000 (14 16:13 +0000) | ||
| tree | 862dce9eccdf0578a95c89ab3e4f0eeaf5a5ecaf | treesnapshot (tar.gz zip) |
| parent | 4a815efc2236d9b18fcef5d87ccde6ea67d980ed | commitdiff |
rs6000: Fix a mistake in cstore_si_as_di (PR68865, PR68879)
convert_move does not know how to zero-extend a constant integer to the
target mode -- simply because it does not know the source mode. As a
result, 32-bit SImode with the high bit set would be effectively sign-
extended instead of zero-extended.
This patch fixes it.
PR target/68865
PR target/68879
* config/rs6000/rs6000.md (cstore_si_as_di): Force all operands
into registers.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231621 138bc75d-0d04-0410-961f-82ee72b054a4
convert_move does not know how to zero-extend a constant integer to the
target mode -- simply because it does not know the source mode. As a
result, 32-bit SImode with the high bit set would be effectively sign-
extended instead of zero-extended.
This patch fixes it.
PR target/68865
PR target/68879
* config/rs6000/rs6000.md (cstore_si_as_di): Force all operands
into registers.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231621 138bc75d-0d04-0410-961f-82ee72b054a4
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| gcc/config/rs6000/rs6000.md | diffblobblamehistory |