Re: [PR77719] Fix ICE in pp_string, at pretty-print.c:955

[kugan <kugan.vivekanandarajah@linaro.org>]

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On 25/09/16 04:50, kugan wrote:
> Hi,
>
> In make_new_ssa_for_def (tree-reassoc.c) we should use gimple_get_lhs to
> get lhs instead of gimple_assign_lhs as stmt can be builtins too.
> Attached patch fixes this.
>
> Testcase from PR (attached) seems to fail. I dont any fortran so I didnt
> try fixing it. Any help here is appreciate. The log is:

Here is a patch with the testcase based on the feedback from Joost 
VandeVondele and Dominique d'Humieres. Bootstrapped and regression 
tested on x86_64-linux-gnu with no new regressions.

Is this OK for trunk?

Thanks,
kugan

gcc/testsuite/ChangeLog:

2016-09-25  Kugan Vivekanandarajah  <kuganv@linaro.org>

	* gfortran.dg/pr77719.f90: New test.

gcc/ChangeLog:

2016-09-25  Kugan Vivekanandarajah  <kuganv@linaro.org>

	* tree-ssa-reassoc.c (make_new_ssa_for_def): Use gimple_get_lhs to get lhs
	instead of gimple_assign_lhs as stmt can be builtins too.


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diff --git a/gcc/testsuite/gfortran.dg/pr77719.f90 b/gcc/testsuite/gfortran.dg/pr77719.f90
index e69de29..974d70a 100644
--- a/gcc/testsuite/gfortran.dg/pr77719.f90
+++ b/gcc/testsuite/gfortran.dg/pr77719.f90
@@ -0,0 +1,26 @@
+! PR middle-end/77719
+! { dg-do compile }
+! { dg-options "-O3 -ffast-math" }
+
+SUBROUTINE urep_egr(erep,derep,surr)
+  INTEGER, PARAMETER :: dp=8
+  REAL(dp), INTENT(inout)                  :: erep, derep(3)
+  REAL(dp), INTENT(in)                     :: surr(2)
+  REAL(dp)                                 :: de_z, rz
+  INTEGER :: isp,spdim,jsp,nsp
+  IF (n_urpoly > 0) THEN
+    IF (r < spxr(1,1)) THEN
+      ispg: DO isp = 1,spdim ! condition ca)
+        IF (isp /= spdim) THEN
+          nsp = 5 ! condition cb
+          DO jsp = 0,nsp
+            IF( jsp <= 3 ) THEN
+            ELSE
+              erep = erep + surr(jsp-3)*rz**(jsp)
+            ENDIF
+          END DO
+        END IF
+      END DO ispg
+    END IF
+  END IF
+END SUBROUTINE urep_egr
diff --git a/gcc/tree-ssa-reassoc.c b/gcc/tree-ssa-reassoc.c
index 8fc76e4..d94ff70 100644
--- a/gcc/tree-ssa-reassoc.c
+++ b/gcc/tree-ssa-reassoc.c
@@ -1158,7 +1158,7 @@ make_new_ssa_for_def (gimple *stmt)
   use_operand_p use;
   imm_use_iterator iter;
   tree new_lhs;
-  tree lhs = gimple_assign_lhs (stmt);
+  tree lhs = gimple_get_lhs (stmt);
 
   new_lhs = make_ssa_name (TREE_TYPE (lhs));
   gimple_set_lhs (stmt, new_lhs);