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[Bug target/82016] [8 regression] test case gcc.target/powerpc/float128-type-1.c fails after r251260
- From: "segher at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 28 Aug 2017 22:44:33 +0000
- Subject: [Bug target/82016] [8 regression] test case gcc.target/powerpc/float128-type-1.c fails after r251260
- Auto-submitted: auto-generated
- References: <bug-82016-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82016
Segher Boessenkool <segher at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2017-08-28
Ever confirmed|0 |1
--- Comment #5 from Segher Boessenkool <segher at gcc dot gnu.org> ---
The ccp1 pass makes it return 0 instead of a+b:
===
Simulating block 2
Visiting statement:
_3 = a_1(D) + b_2(D);
which is likely CONSTANT
Match-and-simplified a_1(D) + b_2(D) to 0.0
Lattice value changed to CONSTANT 0.0. Adding SSA edges to worklist.
marking stmt to be not simulated again
===
Confirmed. (float128-type-2.c fails in the same way).