]> git.ipfire.org Git - thirdparty/gcc.git/commitdiff
arm: [MVE] Fix operands order in vbicq_f [PR122223]
authorChristophe Lyon <christophe.lyon@linaro.org>
Thu, 9 Oct 2025 14:09:26 +0000 (14:09 +0000)
committerChristophe Lyon <christophe.lyon@linaro.org>
Fri, 10 Oct 2025 11:12:11 +0000 (11:12 +0000)
The operands of the floating-point version of vbicq were swapped, this
patch fixes this.

gcc/ChangeLog:
PR target/122223
* config/arm/mve.md (@mve_vbicq_f<mode>): Fix operands order.

gcc/testsuite/ChangeLog:
PR target/122223
* gcc.target/arm/mve/intrinsics/pr122223.c: New test.

gcc/config/arm/mve.md
gcc/testsuite/gcc.target/arm/mve/intrinsics/pr122223.c [new file with mode: 0644]

index 96faa05908f0f232aff405881e49659cc3aeb92c..bd3db24b0c234698fa559d0a56cf6a52f12f2043 100644 (file)
 (define_insn "@mve_vbicq_f<mode>"
   [
    (set (match_operand:MVE_0 0 "s_register_operand" "=w")
-       (and:MVE_0 (not:MVE_0 (match_operand:MVE_0 1 "s_register_operand" "w"))
-                             (match_operand:MVE_0 2 "s_register_operand" "w")))
+       (and:MVE_0 (not:MVE_0 (match_operand:MVE_0 2 "s_register_operand" "w"))
+                             (match_operand:MVE_0 1 "s_register_operand" "w")))
   ]
   "TARGET_HAVE_MVE && TARGET_HAVE_MVE_FLOAT"
   "vbic\t%q0, %q1, %q2"
diff --git a/gcc/testsuite/gcc.target/arm/mve/intrinsics/pr122223.c b/gcc/testsuite/gcc.target/arm/mve/intrinsics/pr122223.c
new file mode 100644 (file)
index 0000000..59e757a
--- /dev/null
@@ -0,0 +1,25 @@
+/* { dg-require-effective-target arm_v8_1m_mve_fp_ok } */
+/* { dg-add-options arm_v8_1m_mve_fp } */
+/* { dg-additional-options "-O2" } */
+
+/* PR target/122223.  */
+
+#include <arm_mve.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+float32x4_t foo() {
+  float32x4_t a = vdupq_n_f32(1.0f); /* 0x3f800000 */
+  float32x4_t b = vbicq_f32(a, a);   /* 0x3f800000 & ~0x3f800000 => 0x00000000 */
+  float32x4_t c = vbicq_f32(a, b);   /* 0x3f800000 & ~0x00000000 => 0x3f800000 */
+  return c;
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+/* { dg-final { scan-assembler-not "vmov.f32\tq0, #0.0" } } */
+/* { dg-final { scan-assembler "vmov.f32\tq0, #1.0" } } */