https://gcc.gnu.org/bugzilla/show_bug.cgi?id=72864
Bug ID: 72864
Summary: gcc.c-torture/compile/pr72802.c fails on
x86_64-apple-darwin15 with -m32
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: dominiq at lps dot ens.fr
CC: amodra at gcc dot gnu.org, iains at gcc dot gnu.org
Target Milestone: ---
Host: x86_64-apple-darwin15
Target: x86_64-apple-darwin15
Build: x86_64-apple-darwin15
The test gcc.c-torture/compile/pr72802.c fails on x86_64-apple-darwin15 with
-m32
Running target unix/-m32
FAIL: gcc.c-torture/compile/pr72802.c -O0 (test for excess errors)
FAIL: gcc.c-torture/compile/pr72802.c -O1 (test for excess errors)
FAIL: gcc.c-torture/compile/pr72802.c -O2 (test for excess errors)
FAIL: gcc.c-torture/compile/pr72802.c -O2 -flto (test for excess errors)
FAIL: gcc.c-torture/compile/pr72802.c -O2 -flto -flto-partition=none (test
for excess errors)
FAIL: gcc.c-torture/compile/pr72802.c -O3 -fomit-frame-pointer -funroll-loops
-fpeel-loops -ftracer -finline-functions (test for excess errors)
FAIL: gcc.c-torture/compile/pr72802.c -O3 -g (test for excess errors)
FAIL: gcc.c-torture/compile/pr72802.c -Os (test for excess errors)
The error is
[book15] f90/bug% gcc-fsf-6
/opt/gcc/_clean/gcc/testsuite/gcc.c-torture/compile/pr72802.c -w -c -m32
/var/folders/8q/sh_swgz96r7f5vnn08f7fxr00000gn/T//cc30nAcT.s:152:2: error:
symbol '_a' can not be undefined in a subtraction expression
leal _a-L3$pb(%ebx), %eax
^
with all the gcc versions I have tried from 4.8 up to trunk (7.0), i.e. latent
bug.
Compiling with clang, Apple LLVM version 7.3.0 (clang-703.0.31), I get
/opt/gcc/_clean/gcc/testsuite/gcc.c-torture/compile/pr72802.c:53:5: error:
non-void function 'fn3' should return a value [-Wreturn-type]
return;
^
1 error generated.
