https://gcc.gnu.org/g:1ae5fc24e86ecc9e7b60346d9ca2e56f83517bda
commit r15-1935-g1ae5fc24e86ecc9e7b60346d9ca2e56f83517bda
Author: Jennifer Schmitz <jschm...@nvidia.com>
Date: Wed Jul 10 12:54:01 2024 +0530
testsuite: Tests the pattern folding x/sqrt(x) to sqrt(x) for Float16
As a follow-up to adding a pattern that folds x/sqrt(x) to sqrt(x) in
match.pd, this patch adds a test case for type Float16 for armv8.2-a+fp16.
The patch was bootstrapped and regtested on aarch64-linux-gnu, no
regression.
Signed-off-by: Jennifer Schmitz <jschm...@nvidia.com>
gcc/testsuite/
* gcc.target/aarch64/sqrt_div_float16.c: New test.
Diff:
---
gcc/testsuite/gcc.target/aarch64/sqrt_div_float16.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/gcc/testsuite/gcc.target/aarch64/sqrt_div_float16.c
b/gcc/testsuite/gcc.target/aarch64/sqrt_div_float16.c
new file mode 100644
index 000000000000..c4f297ef17ae
--- /dev/null
+++ b/gcc/testsuite/gcc.target/aarch64/sqrt_div_float16.c
@@ -0,0 +1,14 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -ffast-math -fdump-tree-forwprop-details" } */
+/* { dg-require-effective-target c99_runtime } */
+
+#pragma GCC target ("arch=armv8.2-a+fp16")
+
+_Float16 f (_Float16 x)
+{
+ _Float16 t1 = __builtin_sqrt (x);
+ _Float16 t2 = x / t1;
+ return t2;
+}
+
+/* { dg-final { scan-tree-dump "gimple_simplified to t2_\[0-9\]+ = .SQRT
.x_\[0-9\]*.D.." "forwprop1" } } */
