gcc/
* config/loongarch/loongarch.md (bitreverseqi2): Disable on
LA32R.
gcc/testsuite/
* gcc.target/loongarch/bitreverse-la32r.c: New test.
---
Bootstrapped and regtested on loongarch64-linux-gnu. Ok for trunk?
gcc/config/loongarch/loongarch.md | 2 +-
gcc/testsuite/gcc.target/loongarch/bitreverse-la32r.c | 4 ++++
2 files changed, 5 insertions(+), 1 deletion(-)
create mode 100644 gcc/testsuite/gcc.target/loongarch/bitreverse-la32r.c
diff --git a/gcc/config/loongarch/loongarch.md
b/gcc/config/loongarch/loongarch.md
index ecf1563270f..cccb0ed8612 100644
--- a/gcc/config/loongarch/loongarch.md
+++ b/gcc/config/loongarch/loongarch.md
@@ -4771,7 +4771,7 @@ (define_insn "bitreverseqi2"
(define_expand "bitreversehi2"
[(set (match_operand:HI 0 "register_operand" "=r")
(bitreverse:HI (match_operand:HI 1 "register_operand" "r")))]
- ""
+ "TARGET_64BIT || TARGET_32BIT_S"
{
rtx t = gen_reg_rtx (word_mode);
diff --git a/gcc/testsuite/gcc.target/loongarch/bitreverse-la32r.c
b/gcc/testsuite/gcc.target/loongarch/bitreverse-la32r.c
new file mode 100644
index 00000000000..72180176d68
--- /dev/null
+++ b/gcc/testsuite/gcc.target/loongarch/bitreverse-la32r.c
@@ -0,0 +1,4 @@
+/* Verify that bitreverse builtins do not ICE on LA32R. */
+/* { dg-do compile } */
+/* { dg-options "-mabi=ilp32s -march=la32rv1.0" } */
+#include "la64/bitreverse.c"
--
2.55.0
