[Bug target/113720] [14 Regression] internal compiler error: in extract_insn, at recog.cc:2812 targeting alpha-linux-gnu
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113720 Uroš Bizjak changed: What|Removed |Added Resolution|--- |FIXED Assignee|unassigned at gcc dot gnu.org |ubizjak at gmail dot com Status|NEW |RESOLVED --- Comment #8 from Uroš Bizjak --- Assuming fixed, please reopen if not.
[Bug target/113720] [14 Regression] internal compiler error: in extract_insn, at recog.cc:2812 targeting alpha-linux-gnu
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113720 --- Comment #7 from GCC Commits --- The master branch has been updated by Uros Bizjak : https://gcc.gnu.org/g:318e0d44fe66ade59edb16a94565b3bfdc1883c6 commit r14-9282-g318e0d44fe66ade59edb16a94565b3bfdc1883c6 Author: Uros Bizjak Date: Sun Mar 3 20:40:45 2024 +0100 alpha: Introduce UMUL_HIGHPART rtx_code [PR113720] umuldi3_highpart expander does: if (REG_P (operands[2])) operands[2] = gen_rtx_ZERO_EXTEND (TImode, operands[2]); on register_operand predicate, which also allows SUBREG RTX. So, subregs were emitted without ZERO_EXTEND RTX. But nowadays we have UMUL_HIGHPART that allows us to fix this issue while also simplifying the instruction RTX. PR target/113720 gcc/ChangeLog: * config/alpha/alpha.md (umuldi3_highpart): Remove expander. (*umuldi3_highpart_reg): Rename to umuldi3_highpart and simplify insn RTX using UMUL_HIGHPART rtx_code. (*umuldi3_highpart_const): Remove.
[Bug target/113720] [14 Regression] internal compiler error: in extract_insn, at recog.cc:2812 targeting alpha-linux-gnu
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113720 Jakub Jelinek changed: What|Removed |Added CC||jakub at gcc dot gnu.org Priority|P3 |P4
[Bug target/113720] [14 Regression] internal compiler error: in extract_insn, at recog.cc:2812 targeting alpha-linux-gnu
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113720 --- Comment #6 from Matthias Klose --- will do, but cannot do that before next week.
[Bug target/113720] [14 Regression] internal compiler error: in extract_insn, at recog.cc:2812 targeting alpha-linux-gnu
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113720 --- Comment #5 from Uroš Bizjak --- (In reply to Matthias Klose from comment #4) > Uros proposed patch lets the build succeed. FTR, the problem was in umuldi3_highpart expander, which did: if (REG_P (operands[2])) operands[2] = gen_rtx_ZERO_EXTEND (TImode, operands[2]); on register_operand predicate, which also allows SUBREG RTX. So, subregs were emitted without ZERO_EXTEND RTX. But nowadays we have UMUL_HIGHPART that allows us to fix this issue while also simplifying the instruction RTX. Matthias, can you please run the regression check - The fix is kind of obvious, but just to be sure.
[Bug target/113720] [14 Regression] internal compiler error: in extract_insn, at recog.cc:2812 targeting alpha-linux-gnu
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113720 --- Comment #4 from Matthias Klose --- Uros proposed patch lets the build succeed.
[Bug target/113720] [14 Regression] internal compiler error: in extract_insn, at recog.cc:2812 targeting alpha-linux-gnu
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113720 Roger Sayle changed: What|Removed |Added CC||roger at nextmovesoftware dot com --- Comment #3 from Roger Sayle --- Sorry for the inconvenience. alpha.md's define_expand that creates RTL that contains a MULT with operands of different modes looks highly suspicious. Uros' patch to use the (relatively recently added) UMUL_HIGHPART rtx_code is certainly a step in the right direction.
[Bug target/113720] [14 Regression] internal compiler error: in extract_insn, at recog.cc:2812 targeting alpha-linux-gnu
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113720 Joseph S. Myers changed: What|Removed |Added CC||jsm28 at gcc dot gnu.org, ||sayle at gcc dot gnu.org Status|UNCONFIRMED |NEW Target Milestone|--- |14.0 Last reconfirmed||2024-02-02 Ever confirmed|0 |1 --- Comment #2 from Joseph S. Myers --- Introduced by: commit 2f14c0dbb789852947cb58fdf7d3162413f053fa Author: Roger Sayle Date: Thu Feb 1 06:10:42 2024 + PR target/113560: Enhance is_widening_mult_rhs_p.
[Bug target/113720] [14 Regression] internal compiler error: in extract_insn, at recog.cc:2812 targeting alpha-linux-gnu
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113720 --- Comment #1 from Uroš Bizjak --- Created attachment 57292 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=57292=edit Patch that introduces umul_highpart RTX Please try the attached (untested) patch.
