https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92303
Bug ID: 92303
Summary: [10 regression] gcc.target/sparc/ultrasp12.c times out
Product: gcc
Version: 10.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: ro at gcc dot gnu.org
CC: ebotcazou at gcc dot gnu.org
Target Milestone: ---
Target: sparc*-*-solaris2.11
Between 20190626 (r272695) and 20190627 (r272755), gcc.target/sparc/ultrasp12.c
compilation began to time out on Solaris/SPARC:
+WARNING: gcc.target/sparc/ultrasp12.c (test for excess errors) program timed
out.
+FAIL: gcc.target/sparc/ultrasp12.c (test for excess errors)
With the 7.1.0/8.1.0/9.1.0 release compilers, the testcase compiles in about
1 sec. The timeout also happens on the gcc-8 and gcc-9 branches now. Maybe
due to different checking options?
Checking the running cc1 with pstack shows it running somewhere in LRA:
0093c0d4 update_lives(int, bool) (131, 0, 1717088, 1a08898, 607c, 4d3) + b4
(lra-assigns.c:393)
00940b4c lra_assign(bool&) (17170a8, 1715800, 274b, 16f3414, 7260, 131) + 310c
(lra-assigns.c:1160)
0093a9dc lra(__FILE*) (1715800, 16f0800, 1751cd0, 17170d4, 16e1e80, 17159f0) +
6d4 (lra.c:2482)
008ec2f4 (anonymous namespace)::pass_reload::execute(function*) (178f820,
fa8b6000, 16dac00, 1747800, 16dac00, 16f0800) + e0 (ira.c:5511)
00940b4c lra_assign(bool&) (17170a8, 1715800, 274b, 16f3414, 7260, 131) + 310c
(lra-assigns.c:1160)
0093a9dc lra(__FILE*) (1715800, 16f0800, 1751cd0, 17170d4, 16e1e80, 17159f0) +
ro@colima 89 > pstack 28239|gc++filt
28239: ./cc1 -fpreprocessed ultrasp12.i -mptr64 -mstack-bias -mno-v8plus -qui
0095ad4c lra_create_live_ranges_1(bool, bool) (fa2ac8e8, 0, 2cdee14, 2d1e62,
fa8c09c0, 1) + 678 (lra-int.h:483)
0095d738 lra_create_live_ranges(bool, bool) (1, 0, 2d3ba0, 789f, 0, 1718000) +
8 (lra-lives.c:1446)
0093a964 lra(__FILE*) (1715800, 16f0800, 1751cd0, 17170d4, 16e1e80, 17159f0) +
65c (lra.c:2471)
00956608 update_reg_eliminate(bitmap_head*) [clone .constprop.0] (0, 1, 0,
16e1e80, 1715800, fa1d8528) + 75c (rtl.h:882)
009587c8 lra_eliminate(bool, bool) (0, 0, fa8c09c0, 1747800, fa8c09c0,
1717400) + 38c (lra-eliminations.c:1357)
0093a930 lra(__FILE*) (1715800, 16f0800, 1751cd0, 17170d4, 16e1e80, 1) + 628
(lra.c:2441)
