The test is gated on effective-target hard_float but what it
really requires is a sqrtf insn (SFmode, not DFmode). (It
indeed passes for mmix-knuth-mmixware if the sqrtf is changed to
sqrt and float to double; there is a DFmode sqrt insn.)
Committed.
gcc/testsuite:
* gcc.dg/cdce3.c: Skip for mmix.
--- gcc/gcc/testsuite/gcc.dg/cdce3.c.orig Mon Jan 13 22:30:47 2020
+++ gcc/gcc/testsuite/gcc.dg/cdce3.c Mon Jul 20 04:24:48 2020
@@ -3,6 +3,7 @@
/* { dg-options "-O2 -fmath-errno -fdump-tree-cdce-details
-fdump-tree-optimized" } */
/* { dg-final { scan-tree-dump "cdce3.c:10: \[^\n\r]* function call is
shrink-wrapped into error conditions\." "cdce" } } */
/* { dg-final { scan-tree-dump "sqrtf \\(\[^\n\r]*\\); \\\[tail call\\\]"
"optimized" } } */
+/* { dg-skip-if "doesn't have a sqrtf insn" { mmix-*-* } } */
float sqrtf (float);
float foo (float x)
