From: Uros Bizjak <ubizjak@gmail.com>
Date: Sat, 11 Apr 2020 11:22:52 +0000 (+0200)
Subject: i386: Fix REDUC_SSE_SMINMAX_MODE mode conditions.
X-Git-Tag: misc/first-auto-changelog-9~135
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=59eddd9769057ee094cdae09b15b257cc3db690f;p=thirdparty%2Fgcc.git

i386: Fix REDUC_SSE_SMINMAX_MODE mode conditions.

V4SI, V8HI and V16QI modes of redux_<code>_scal_<mode> expander
expand with SSE2 instructions (PSRLDQ and PCMPGTx) so use
TARGET_SSE2 as relevant mode iterator codition.

	PR target/94494
	* config/i386/sse.md (REDUC_SSE_SMINMAX_MODE): Use TARGET_SSE2
	condition for V4SI, V8HI and V16QI modes.

testsuite/ChangeLog:

	PR target/94494
	* gcc.target/i386/pr94494.c: New test.
---

diff --git a/gcc/testsuite/gcc.target/i386/pr94494.c b/gcc/testsuite/gcc.target/i386/pr94494.c
new file mode 100644
index 000000000000..ba0171e59f86
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr94494.c
@@ -0,0 +1,23 @@
+/* PR target/94494 */
+/* { dg-do compile } */
+/* { dg-options "-O2 -ftree-vectorize -msse -mno-sse2" } */
+
+void
+foo (float *item, float *f, float *out,
+     int threshold, int wi, int lo, int hi, int value)
+{
+  for (int i = 0; i < wi; i++) {
+    if (item[i] > 0) {
+      int found = 0;
+
+      for (int k = lo; k < hi; k++)
+        if (f[k] > 0)
+          found = 1;
+
+      if (found > 0)
+        out[i] = threshold;
+      else if (out[i] > value)
+        out[i] -= 1;
+    }
+  }
+}