gimple-fold: Don't replace `tmp = FP0 CMP FP1; if (tmp != 0)` over and over again when comparison can throwHEADtrunkmaster

with -ftrapping-math -fnon-call-exceptions and:
```
tmp = FP0 CMP FP1;

if (tmp != 0) ...
```
a call fold_stmt on the GIMPLE_COND will replace the above with
a new tmp each time and we even lose the eh informatin on the
previous comparison too.

Changes since v1:
* v2: Use INTEGRAL_TYPE_P instead of a check against BOOLEAN_TYPE.
      Add testcase which shows where losing of landing pad happened.

	PR tree-optimization/119903
gcc/ChangeLog:

	* gimple-fold.cc (replace_stmt_with_simplification): Reject for
	noncall exceptions replacing comparison with itself.
gcc/testsuite/ChangeLog:

	* g++.dg/tree-ssa/pr119903-1.C: New test.

Signed-off-by: Andrew Pinski <quic_apinski@quicinc.com>

0 files changed, 0 insertions, 0 deletions