PR target/90547
* config/i386/i386.md (anddi_1 to andsi_1_zext splitter):
Avoid calling gen_lowpart with CONST operand.
testsuite/ChangeLog:
PR target/90547
* gcc.target/i386/pr90547.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@271479 138bc75d-0d04-0410-961f-82ee72b054a4
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 52178fe..8a89dc8 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2019-05-21 Uroš Bizjak <ubizjak@gmail.com>
+
+ PR target/90547
+ * config/i386/i386.md (anddi_1 to andsi_1_zext splitter):
+ Avoid calling gen_lowpart with CONST operand.
+
2019-05-21 Alexandre Oliva <aoliva@redhat.com>
* tree-ssa-threadupdate.c (struct ssa_local_info_t): Add
diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
index 2e6329a..da5163d 100644
--- a/gcc/config/i386/i386.md
+++ b/gcc/config/i386/i386.md
@@ -8525,6 +8525,14 @@
operands[2] = shallow_copy_rtx (operands[2]);
PUT_MODE (operands[2], SImode);
}
+ else if (GET_CODE (operands[2]) == CONST)
+ {
+ /* (const:DI (plus:DI (symbol_ref:DI ("...")) (const_int N))) */
+ operands[2] = copy_rtx (operands[2]);
+ PUT_MODE (operands[2], SImode);
+ PUT_MODE (XEXP (operands[2], 0), SImode);
+ PUT_MODE (XEXP (XEXP (operands[2], 0), 0), SImode);
+ }
else
operands[2] = gen_lowpart (SImode, operands[2]);
})
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 4e8e73c..b2781fa 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2019-05-21 Uroš Bizjak <ubizjak@gmail.com>
+
+ PR target/90547
+ * gcc.target/i386/pr90547.c: New test.
+
2019-05-21 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* gcc.dg/Wattribute-alias.c: Pass emtpy arg to dg-require-ifunc.
diff --git a/gcc/testsuite/gcc.target/i386/pr90547.c b/gcc/testsuite/gcc.target/i386/pr90547.c
new file mode 100644
index 0000000..fcfe669
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr90547.c
@@ -0,0 +1,21 @@
+/* PR target/90547 */
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+
+void
+foo ()
+{
+ void *g[] = {&&a, &&b};
+
+ for (unsigned c = 0x1F;; c >>= 1)
+ {
+ unsigned d = (long)("a"+1);
+ long e = 8;
+
+ while (e)
+ {
+ a: goto *g[c&d];
+ b: e--;
+ }
+ }
+}
