On Wed, 20 Feb 2019 at 12:14, Andrew Stubbs <a...@codesourcery.com> wrote: > > On 19/02/2019 12:45, Richard Biener wrote: > > > > The following limits mpfr operations to the maximum exponent range as > > determined by available float modes. This avoids excessive work > > for evaluating functions like ctan for large arguments. > > > > Bootstrapped and tested on x86_64-unknown-linux-gnu, applied to trunk. > > > > Richard. > > > > 2019-02-19 Richard Biener <rguent...@suse.de> > > > > PR middle-end/88074 > > * toplev.c (do_compile): Initialize mpfr's exponent range > > based on available float modes. > > > > * gcc.dg/pr88074.c: New testcase. > > This patch causes a number of test regressions for (at least) arm and > amdgcn. I've run a bisect and confirmed this is the first commit where > it doesn't work. > > spawn -ignore SIGHUP amdgcn-unknown-amdhsa-gcc > .../gcc/testsuite/gcc.dg/torture/builtin-math-7.c > -fno-diagnostics-show-caret -fno-diagnostics-show-line-numbers > -fdiagnostics-color=never -O0 -lm -o ./builtin-math-7.exe^M > ld: error: undefined symbol: link_error^M > >>> referenced by /tmp/ccKynVNn.o:(main)^M > ^M > ld: error: undefined symbol: link_error^M > >>> referenced by /tmp/ccKynVNn.o:(main)^M > collect2: error: ld returned 1 exit status^M > compiler exited with status 1 > output is: > ld: error: undefined symbol: link_error^M > >>> referenced by /tmp/ccKynVNn.o:(main)^M > ^M > ld: error: undefined symbol: link_error^M > >>> referenced by /tmp/ccKynVNn.o:(main)^M > collect2: error: ld returned 1 exit status^M > > FAIL: gcc.dg/torture/builtin-math-7.c -O0 (test for excess errors) > > I see the same failures posted here: > https://gcc.gnu.org/ml/gcc-testresults/2019-02/msg02389.html >
See also: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89415 > Andrew
