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-rw-r--r--gcc/config/avr/avr.cc17
1 files changed, 17 insertions, 0 deletions
diff --git a/gcc/config/avr/avr.cc b/gcc/config/avr/avr.cc
index 74924ab..61c325f 100644
--- a/gcc/config/avr/avr.cc
+++ b/gcc/config/avr/avr.cc
@@ -6930,6 +6930,20 @@ avr_canonicalize_comparison (int *icode, rtx *op0, rtx *op1, bool op0_fixed)
}
}
+/* Implement TARGET_C_MODE_FOR_FLOATING_TYPE. Return SFmode or DFmode
+ for TI_{LONG_,}DOUBLE_TYPE which is for {long,} double type, go with
+ the default one for the others. */
+
+static machine_mode
+avr_c_mode_for_floating_type (enum tree_index ti)
+{
+ if (ti == TI_DOUBLE_TYPE)
+ return avr_double == 32 ? SFmode : DFmode;
+ if (ti == TI_LONG_DOUBLE_TYPE)
+ return avr_long_double == 32 ? SFmode : DFmode;
+ return default_mode_for_floating_type (ti);
+}
+
/* Output compare instruction
@@ -16411,6 +16425,9 @@ avr_float_lib_compare_returns_bool (machine_mode mode, enum rtx_code)
#undef TARGET_HAVE_SPECULATION_SAFE_VALUE
#define TARGET_HAVE_SPECULATION_SAFE_VALUE speculation_safe_value_not_needed
+#undef TARGET_C_MODE_FOR_FLOATING_TYPE
+#define TARGET_C_MODE_FOR_FLOATING_TYPE avr_c_mode_for_floating_type
+
struct gcc_target targetm = TARGET_INITIALIZER;