[gcc r15-1804] tree-optimization/115764 - testcase for BB SLP issue

[Richard Biener via Gcc-cvs]

https://gcc.gnu.org/g:2be2145f4f14a79e4bb8e845168d7f0d25dc1b5b

commit r15-1804-g2be2145f4f14a79e4bb8e845168d7f0d25dc1b5b
Author: Richard Biener <rguent...@suse.de>
Date:   Wed Jul 3 09:05:06 2024 +0200

    tree-optimization/115764 - testcase for BB SLP issue
    
    The following adds a testcase for a CSE issue with BB SLP two operator
    handling when we make those CSE aware by providing SLP_TREE_SCALAR_STMTS
    for them.  This was reduced from 526.blender_r.
    
            PR tree-optimization/115764
            * gcc.dg/vect/bb-slp-76.c: New testcase.

Diff:
---
 gcc/testsuite/gcc.dg/vect/bb-slp-76.c | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/gcc/testsuite/gcc.dg/vect/bb-slp-76.c 
b/gcc/testsuite/gcc.dg/vect/bb-slp-76.c
new file mode 100644
index 00000000000..b3b6a58e7c7
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/vect/bb-slp-76.c
@@ -0,0 +1,30 @@
+/* { dg-do compile } */
+/* { dg-additional-options "-ffast-math" } */
+
+typedef struct {
+  float xmin, xmax;
+} rctf;
+int U_0;
+float BLI_rctf_size_x_rct_1, view_zoomdrag_apply_dx;
+void *view_zoomdrag_apply_op_0;
+float RNA_float_get();
+typedef struct {
+  rctf cur;
+} View2D;
+typedef struct {
+  View2D v2d;
+} v2dViewZoomData;
+void view_zoomdrag_apply() {
+  v2dViewZoomData *vzd = view_zoomdrag_apply_op_0;
+  View2D *v2d = &vzd->v2d;
+  view_zoomdrag_apply_dx = RNA_float_get();
+  if (U_0) {
+    float mval_fac = BLI_rctf_size_x_rct_1, mval_faci = mval_fac,
+          ofs = mval_faci * view_zoomdrag_apply_dx;
+    v2d->cur.xmin += ofs + view_zoomdrag_apply_dx;
+    v2d->cur.xmax += ofs - view_zoomdrag_apply_dx;
+  } else {
+    v2d->cur.xmin += view_zoomdrag_apply_dx;
+    v2d->cur.xmax -= view_zoomdrag_apply_dx;
+  }
+}