* [PATCH] [x86] Fix unrecognizable insn of cvtss2si.
@ 2022-10-10 1:26 liuhongt
2022-10-10 7:27 ` Uros Bizjak
0 siblings, 1 reply; 2+ messages in thread
From: liuhongt @ 2022-10-10 1:26 UTC (permalink / raw)
To: gcc-patches; +Cc: crazylht, hjl.tools
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
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH] [x86] Fix unrecognizable insn of cvtss2si.
2022-10-10 1:26 [PATCH] [x86] Fix unrecognizable insn of cvtss2si liuhongt
@ 2022-10-10 7:27 ` Uros Bizjak
0 siblings, 0 replies; 2+ messages in thread
From: Uros Bizjak @ 2022-10-10 7:27 UTC (permalink / raw)
To: liuhongt; +Cc: gcc-patches
On Mon, Oct 10, 2022 at 3:26 AM liuhongt via Gcc-patches
<gcc-patches@gcc.gnu.org> wrote:
>
> 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.
OK.
Thanks,
Uros.
> ---
> 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
>
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