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62 lines
1.5 KiB

2017-03-08 Bernd Schmidt <bschmidt@redhat.com>
PR target/70549
* config/aarch64/aarch64.c (aarch64_secondary_reload): Reload
CORE_REGS rclass constants in [SD]Fmode through FP_REGS.
* g++.dg/opt/pr70549.C: New test.
--- gcc/config/aarch64/aarch64.c.jj 2017-03-08 15:50:55.000000000 +0100
+++ gcc/config/aarch64/aarch64.c 2017-03-08 16:01:15.426080172 +0100
@@ -3846,8 +3846,13 @@ aarch64_secondary_reload (bool in_p ATTR
&& GET_MODE_SIZE (mode) == 16 && MEM_P (x))
return FP_REGS;
+ if (rclass == CORE_REGS
+ && (mode == SFmode || mode == DFmode)
+ && CONSTANT_P (x))
+ return FP_REGS;
+
if (rclass == FP_REGS && (mode == TImode || mode == TFmode) && CONSTANT_P(x))
- return CORE_REGS;
+ return CORE_REGS;
return NO_REGS;
}
--- gcc/testsuite/g++.dg/opt/pr70549.C.jj 2017-03-08 16:02:45.104918249 +0100
+++ gcc/testsuite/g++.dg/opt/pr70549.C 2017-03-08 16:02:14.000000000 +0100
@@ -0,0 +1,33 @@
+// PR target/70549
+// { dg-do compile }
+// { dg-options "-O2" }
+// { dg-additional-options "-fPIC" { target fpic } }
+
+struct A { float x; float y; };
+A a, b, c;
+int d, e;
+A bar ();
+void foo (A, A);
+inline A operator/ (A, A p2) { if (p2.x) return a; }
+struct B { A dval; };
+int baz (A, B, A, int);
+
+void
+test ()
+{
+ B q;
+ A f, g, h, k;
+ h.x = 1.0;
+ f = h;
+ struct A i, j = f;
+ do {
+ i = bar ();
+ g = i / j;
+ foo (g, c);
+ int l = baz (k, q, b, e);
+ if (l)
+ goto cleanup;
+ j = i;
+ } while (d);
+cleanup:;
+}