https://gcc.gnu.org/g:7eec6fedf457883adc8222b2f4a3230311f8f25f
commit r15-6706-g7eec6fedf457883adc8222b2f4a3230311f8f25f
Author: Thomas Schwinge <tschwi...@baylibre.com>
Date: Wed Dec 11 15:22:06 2024 +0100
nvptx: Add a test case where 'alloca's evaporate [PR65181]
Documenting the status quo.
PR target/65181
gcc/testsuite/
* gcc.target/nvptx/alloca-2-O1.c: New.
Diff:
---
gcc/testsuite/gcc.target/nvptx/alloca-2-O1.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/gcc/testsuite/gcc.target/nvptx/alloca-2-O1.c
b/gcc/testsuite/gcc.target/nvptx/alloca-2-O1.c
new file mode 100644
index 000000000000..56cc3f25678b
--- /dev/null
+++ b/gcc/testsuite/gcc.target/nvptx/alloca-2-O1.c
@@ -0,0 +1,19 @@
+/* { dg-do run } */
+/* { dg-options {-O1 -mno-soft-stack} } */
+/* { dg-additional-options -save-temps } */
+/* { dg-final { check-function-bodies {** } {} } } */
+
+int
+main(void)
+{
+ return !(__builtin_alloca(100) != __builtin_alloca(10));
+}
+/*
+** main:
+** \.visible \.func \(\.param\.u32 %value_out\) main \(\.param\.u32 %in_ar0,
\.param\.u64 %in_ar1\)
+** {
+** \.reg\.u32 %value;
+** mov\.u32 %value, 0;
+** st\.param\.u32 \[%value_out\], %value;
+** ret;
+*/
