[Bug tree-optimization/116352] [15 regression] ICE when building opencv-4.9.0 (error: definition in block 208 does not dominate use in block 188) since r15-2820-gab18785840d7b8

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116352 --- Comment #11 from Manolis Tsamis --- Here's an outline of the involved BBs and the statement that causes the error: ;; basic block 32, loop depth 0 ;;prev block 35, next block 5 ;;pred: 35 [89.4% (guessed)] ... c.1_182 =

[Bug tree-optimization/116352] [15 regression] ICE when building opencv-4.9.0 (error: definition in block 208 does not dominate use in block 188) since r15-2820-gab18785840d7b8

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116352 --- Comment #9 from Manolis Tsamis --- (In reply to Sam James from comment #8) > Manolis et al., is this one on your list? Sorry to nag, it's just a package > with a lot of reverse dependencies. Hi Sam, yes, with the ifcvt issue now resolved, t

[Bug middle-end/116358] [15 Regression] undefined reference to `__umindi3' at -O3 when compiling with SVE since r15-2890-g72c9b5f438f22c

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116358 --- Comment #5 from Manolis Tsamis --- I had some trouble figuring the preferred way to address this. I made a choice by answering these questions: 1) Should the aarch64 min/max expand pattern be improved? This comment hints that we should get

[Bug rtl-optimization/116405] [15 regression] wrong code at -O{2,3} with "-fno-ssa-phiopt -fno-tree-dce" on x86_64-linux-gnu since r15-2890-g72c9b5f438f22c

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116405 --- Comment #6 from Manolis Tsamis --- I have sent the fix for this, together with the testcase from this ticket, in the lists. Link is https://gcc.gnu.org/pipermail/gcc-patches/2024-August/660912.html

[Bug rtl-optimization/116372] [15 Regression] Ada bootstrap failure ada/gcc-interface/trans.cc:6423 since r15-2890-g72c9b5f438f22c

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116372 --- Comment #8 from Manolis Tsamis --- I have sent the fix for this, together with the testcase from this ticket, in the lists. Link is https://gcc.gnu.org/pipermail/gcc-patches/2024-August/660912.html

[Bug rtl-optimization/116372] [15 Regression] Ada bootstrap failure ada/gcc-interface/trans.cc:6423 since r15-2890-g72c9b5f438f22c

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116372 --- Comment #7 from Manolis Tsamis --- This looks to be the same issue with https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116405. The transformation: insn 1: (insn 12 31 13 3 (parallel [ (set (reg:DI 67 [ y_4 ]) (pl

[Bug rtl-optimization/116405] [15 regression] wrong code at -O{2,3} with "-fno-ssa-phiopt -fno-tree-dce" on x86_64-linux-gnu since r15-2890-g72c9b5f438f22c

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116405 --- Comment #5 from Manolis Tsamis --- The basic block that is if-converted and results in wrong code looks like this: if (r107 != -1) { r107 = (not:SI) (r99) r107 = (ior:SI) (r107) (const_int -2) } Then, the if-converted code that emitte

[Bug middle-end/116358] [15 Regression] undefined reference to `__umindi3' at -O3 when compiling with SVE

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116358 --- Comment #2 from Manolis Tsamis --- This is indeed due to r15-2890-g72c9b5f438f22c, but it is a different issue from PR116353 (the fix for PR116353 doesn't solve this issue). For some additional context, the basic block from the testcase tha

[Bug rtl-optimization/116353] [15 Regression] ICE on glibc-2.39: RTL pass: ce2, in expand_simple_binop, at optabs.cc:1264 since r15-2890-g72c9b5f438f22c

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116353 --- Comment #8 from Manolis Tsamis --- I have sent this fix, together with the testcase from this ticket, in the lists. Link is https://gcc.gnu.org/pipermail/gcc-patches/2024-August/660245.html

[Bug rtl-optimization/116353] [15 Regression] ICE on glibc-2.39: RTL pass: ce2, in expand_simple_binop, at optabs.cc:1264 since r15-2890-g72c9b5f438f22c

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116353 --- Comment #4 from Manolis Tsamis --- The ICE happens when this RTX is given to try_emit_cmove_seq: set: (set (reg/v:DI 110 [ xor1 ]) (vec_select:DI (reg:V2DI 100 [ vect__15.36 ]) (parallel [ (const_int 1 [0x1])