https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77290
Bug ID: 77290
Summary: [7 regression] test case gcc.dg/tree-ssa/pr71347.c
fails starting with r239565
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: seurer at linux dot vnet.ibm.com
Target Milestone: ---
PASS: gcc.dg/tree-ssa/pr71347.c (test for excess errors)
FAIL: gcc.dg/tree-ssa/pr71347.c scan-tree-dump-not optimized ".* = MEM.*;"
=== gcc Summary ===
# of expected passes 1
# of unexpected failures 1
This test previously passed on powerpc but began failing with r239565. From
looking at the test results it looks like it has been failing on other
architectures for quite some time (mid June at least).
Diff of generated .s files:
23c23
< addi 9,10,8
---
> addi 9,10,16
30,31c30,32
< fmul 12,0,0
< stfd 12,.LANCHOR0+8@toc@l(8)
---
> fmul 0,0,0
> fmr 12,0
> stfd 0,.LANCHOR0+8@toc@l(8)
37,38d37
< lfd 0,0(9)
< addi 9,9,8
40c39,40
< stfd 0,0(9)
---
> addi 9,9,8
> stfd 0,-8(9)
61c61
< .ident "GCC: (GNU) 7.0.0 20160818 (experimental) [trunk revision
239565]"
---
> .ident "GCC: (GNU) 7.0.0 20160818 (experimental) [trunk revision
> 239564]"
seurer@genoa:~/gcc/build/gcc-test3$ diff ../gcc-test2/pr71347.s pr71347.s
23c23
< addi 9,10,16
---
> addi 9,10,8
30,32c30,31
< fmul 0,0,0
< fmr 12,0
< stfd 0,.LANCHOR0+8@toc@l(8)
---
> fmul 12,0,0
> stfd 12,.LANCHOR0+8@toc@l(8)
38c37
< fmul 0,0,12
---
> lfd 0,0(9)
40c39,40
< stfd 0,-8(9)
---
> fmul 0,0,12
> stfd 0,0(9)
61c61
< .ident "GCC: (GNU) 7.0.0 20160818 (experimental) [trunk revision
239564]"
---
> .ident "GCC: (GNU) 7.0.0 20160818 (experimental) [trunk revision
> 239565]"
