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| author | Jakub Jelinek <jakub@redhat.com> | 2018-03-08 08:29:42 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2018-03-08 08:29:42 +0100 |
| commit | ce8b1a1f132aff97d670bd326dd89ae318cd3c68 (patch) | |
| tree | 61dc23f5b9e429cfa27f5a1b470df71301004c45 /gcc | |
| parent | 686faaece353242d733dec4eb47647ef0ae1335f (diff) | |
| download | gcc-ce8b1a1f132aff97d670bd326dd89ae318cd3c68.zip gcc-ce8b1a1f132aff97d670bd326dd89ae318cd3c68.tar.gz gcc-ce8b1a1f132aff97d670bd326dd89ae318cd3c68.tar.bz2 | |
re PR tree-optimization/84740 (ICE in build_constructors, at tree-switch-conversion.c:965)
PR tree-optimization/84740
* tree-switch-conversion.c (process_switch): Call build_constructors
only if info.phi_count is non-zero.
* gcc.dg/torture/pr84740.c: New test.
From-SVN: r258354
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 3 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/torture/pr84740.c | 24 | ||||
| -rw-r--r-- | gcc/tree-switch-conversion.c | 3 |
4 files changed, 33 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index c96e895..39587da 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,9 @@ 2018-03-08 Jakub Jelinek <jakub@redhat.com> + PR tree-optimization/84740 + * tree-switch-conversion.c (process_switch): Call build_constructors + only if info.phi_count is non-zero. + PR tree-optimization/84739 * tree-tailcall.c (find_tail_calls): Check call arguments against DECL_ARGUMENTS (current_function_decl) rather than diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 3f0ac96..a42a376 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,5 +1,8 @@ 2018-03-08 Jakub Jelinek <jakub@redhat.com> + PR tree-optimization/84740 + * gcc.dg/torture/pr84740.c: New test. + PR tree-optimization/84739 * gcc.dg/pr84739.c: New test. diff --git a/gcc/testsuite/gcc.dg/torture/pr84740.c b/gcc/testsuite/gcc.dg/torture/pr84740.c new file mode 100644 index 0000000..8fcc028 --- /dev/null +++ b/gcc/testsuite/gcc.dg/torture/pr84740.c @@ -0,0 +1,24 @@ +/* PR tree-optimization/84740 */ + +void +frobulate_for_gcc (unsigned int v) +{ + const char *s; + switch (v) + { + case 0: + s = "foo"; + break; + case 1: + s = "bar"; + break; + case 2: + s = "spam"; + break; + default: + s = (const char *) 0; + break; + } + if (!s) + __builtin_printf ("%s\n", s); +} diff --git a/gcc/tree-switch-conversion.c b/gcc/tree-switch-conversion.c index c253890..2da7068 100644 --- a/gcc/tree-switch-conversion.c +++ b/gcc/tree-switch-conversion.c @@ -1563,7 +1563,8 @@ process_switch (gswitch *swtch) gather_default_values (info.default_case_nonstandard ? gimple_switch_label (swtch, 1) : gimple_switch_default_label (swtch), &info); - build_constructors (swtch, &info); + if (info.phi_count) + build_constructors (swtch, &info); build_arrays (swtch, &info); /* Build the static arrays and assignments. */ gen_inbound_check (swtch, &info); /* Build the bounds check. */ |