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diff -Nur gcc-git.orig/gcc/config/riscv/riscv.c gcc-git/gcc/config/riscv/riscv.c
--- gcc-git.orig/gcc/config/riscv/riscv.c 2017-03-11 21:53:53.000000000 +0100
+++ gcc-git/gcc/config/riscv/riscv.c 2017-03-11 22:11:38.830507954 +0100
@@ -3634,8 +3634,13 @@
static reg_class_t
riscv_preferred_reload_class (rtx x ATTRIBUTE_UNUSED, reg_class_t rclass)
{
- return reg_class_subset_p (FP_REGS, rclass) ? FP_REGS :
- reg_class_subset_p (GR_REGS, rclass) ? GR_REGS :
+ machine_mode mode = GET_MODE (x);
+ if ((GET_MODE_CLASS (mode) == MODE_FLOAT
+ || GET_MODE_CLASS (mode) == MODE_COMPLEX_FLOAT)
+ && reg_class_subset_p (FP_REGS, rclass))
+ return FP_REGS;
+
+ return reg_class_subset_p (GR_REGS, rclass) ? GR_REGS :
rclass;
}
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