From: liuhongt <hongtao.liu@intel.com>
To: gcc-patches@gcc.gnu.org
Cc: crazylht@gmail.com, hjl.tools@gmail.com
Subject: [PATCH] [x86] Fix unrecognizable insn of cvtss2si.
Date: Mon, 10 Oct 2022 09:26:01 +0800 [thread overview]
Message-ID: <20221010012601.2741373-1-hongtao.liu@intel.com> (raw)
Adjust lrintmn2 operand preidcates according to real instructions.
Bootstrapped and regtested on x86_64-pc-linux-gnu{-m32,}.
Ok as an obvious fix?
gcc/ChangeLog:
PR target/107185
* config/i386/i386.md (lrint<MODEF:mode><SWI48:mode>2): Swap
predicate of operands[0] and operands[1].
gcc/testsuite/ChangeLog:
* gcc.target/i386/pr107185.c: New test.
---
gcc/config/i386/i386.md | 4 ++--
gcc/testsuite/gcc.target/i386/pr107185.c | 8 ++++++++
2 files changed, 10 insertions(+), 2 deletions(-)
create mode 100644 gcc/testsuite/gcc.target/i386/pr107185.c
diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
index 1be9b669909..947513701b9 100644
--- a/gcc/config/i386/i386.md
+++ b/gcc/config/i386/i386.md
@@ -20145,8 +20145,8 @@ (define_insn "lrintxf<mode>2"
(set_attr "mode" "<MODE>")])
(define_expand "lrint<MODEF:mode><SWI48:mode>2"
- [(set (match_operand:SWI48 0 "nonimmediate_operand")
- (unspec:SWI48 [(match_operand:MODEF 1 "register_operand")]
+ [(set (match_operand:SWI48 0 "register_operand")
+ (unspec:SWI48 [(match_operand:MODEF 1 "nonimmediate_operand")]
UNSPEC_FIX_NOTRUNC))]
"SSE_FLOAT_MODE_P (<MODEF:MODE>mode) && TARGET_SSE_MATH")
diff --git a/gcc/testsuite/gcc.target/i386/pr107185.c b/gcc/testsuite/gcc.target/i386/pr107185.c
new file mode 100644
index 00000000000..333191a9a89
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr107185.c
@@ -0,0 +1,8 @@
+/* { dg-do compile } */
+/* { dg-options "-ffast-math" } */
+
+void
+foo (float f)
+{
+ long p = __builtin_lrintf (f);
+}
--
2.27.0
next reply other threads:[~2022-10-10 1:26 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-10 1:26 liuhongt [this message]
2022-10-10 7:27 ` Uros Bizjak
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