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-rw-r--r--gcc/expr.cc11
-rw-r--r--gcc/testsuite/gcc.dg/pr107262.c13
2 files changed, 22 insertions, 2 deletions
diff --git a/gcc/expr.cc b/gcc/expr.cc
index 4c892d6..efe387e 100644
--- a/gcc/expr.cc
+++ b/gcc/expr.cc
@@ -416,8 +416,15 @@ convert_mode_scalar (rtx to, rtx from, int unsignedp)
rtx tof = NULL_RTX;
if (fromi)
{
- rtx toi = gen_reg_rtx (toi_mode);
- convert_mode_scalar (toi, fromi, 1);
+ rtx toi;
+ if (GET_MODE (fromi) == VOIDmode)
+ toi = simplify_unary_operation (ZERO_EXTEND, toi_mode,
+ fromi, fromi_mode);
+ else
+ {
+ toi = gen_reg_rtx (toi_mode);
+ convert_mode_scalar (toi, fromi, 1);
+ }
toi
= maybe_expand_shift (LSHIFT_EXPR, toi_mode, toi,
GET_MODE_PRECISION (to_mode)
diff --git a/gcc/testsuite/gcc.dg/pr107262.c b/gcc/testsuite/gcc.dg/pr107262.c
new file mode 100644
index 0000000..2ced047
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr107262.c
@@ -0,0 +1,13 @@
+/* PR middle-end/107262 */
+/* { dg-do compile } */
+/* { dg-options "-O2 -ffast-math" } */
+/* { dg-add-options bfloat16 } */
+/* { dg-require-effective-target bfloat16_runtime } */
+
+__bf16
+foo (__bf16 a)
+{
+ __bf16 b = 0;
+ b /= a;
+ return b;
+}