From: Juzhe-Zhong <juzhe.zhong@rivai.ai>
Date: Wed, 10 Jan 2024 01:00:05 +0000 (+0800)
Subject: RISC-V: Robostify dynamic lmul test
X-Git-Tag: basepoints/gcc-15~3055
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cf4dcf83a7df7805186aca7db0595bbf59cd40eb;p=thirdparty%2Fgcc.git

RISC-V: Robostify dynamic lmul test

While working on refining the cost model, I notice this test will generate unexpected
scalar xor instructions if we don't tune cost model carefully.

Add more assembler to avoid future regression.

Committed.

gcc/testsuite/ChangeLog:

	* gcc.dg/vect/costmodel/riscv/rvv/dynamic-lmul2-7.c: Add assembler-not check.
---

diff --git a/gcc/testsuite/gcc.dg/vect/costmodel/riscv/rvv/dynamic-lmul2-7.c b/gcc/testsuite/gcc.dg/vect/costmodel/riscv/rvv/dynamic-lmul2-7.c
index 87e963edc479..38cbefbe6255 100644
--- a/gcc/testsuite/gcc.dg/vect/costmodel/riscv/rvv/dynamic-lmul2-7.c
+++ b/gcc/testsuite/gcc.dg/vect/costmodel/riscv/rvv/dynamic-lmul2-7.c
@@ -22,3 +22,4 @@ x264_pixel_8x8 (unsigned char *pix1, unsigned char *pix2, int i_stride_pix2)
 }
 
 /* { dg-final { scan-assembler {e32,m2} } } */
+/* { dg-final { scan-assembler-not {xor} } } */