52 lines
1.7 KiB
Diff
52 lines
1.7 KiB
Diff
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From 9b2cbf361e38ea1ad672c2b8c8cf1dda4f6f7d72 Mon Sep 17 00:00:00 2001
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From: Xi Ruoyao <xry111@xry111.site>
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Date: Mon, 2 Oct 2023 18:51:00 +0800
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Subject: [PATCH 005/188] LoongArch: Replace UNSPEC_FCOPYSIGN with copysign RTL
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When I added copysign support for LoongArch (r13-3702), we did not have
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a copysign RTL insn, so I had to use UNSPEC to represent the copysign
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instruction. Now the copysign RTX code has been added in r14-1586, so
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this patch removes those UNSPECs, and it uses the native RTL copysign
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insn.
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Inspired by rs6000 patch "Cleanup: Replace UNSPEC_COPYSIGN with copysign
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RTL" [1] from Michael Meissner.
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[1]: https://gcc.gnu.org/pipermail/gcc-patches/2023-September/631701.html
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gcc/ChangeLog:
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* config/loongarch/loongarch.md (UNSPEC_FCOPYSIGN): Delete.
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(copysign<mode>3): Use copysign RTL instead of UNSPEC.
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---
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gcc/config/loongarch/loongarch.md | 6 ++----
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1 file changed, 2 insertions(+), 4 deletions(-)
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diff --git a/gcc/config/loongarch/loongarch.md b/gcc/config/loongarch/loongarch.md
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index 63ff32e75..73e2cbe0b 100644
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--- a/gcc/config/loongarch/loongarch.md
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+++ b/gcc/config/loongarch/loongarch.md
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@@ -37,7 +37,6 @@
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UNSPEC_FCLASS
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UNSPEC_FMAX
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UNSPEC_FMIN
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- UNSPEC_FCOPYSIGN
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UNSPEC_FTINT
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UNSPEC_FTINTRM
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UNSPEC_FTINTRP
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@@ -1129,9 +1128,8 @@
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(define_insn "copysign<mode>3"
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[(set (match_operand:ANYF 0 "register_operand" "=f")
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- (unspec:ANYF [(match_operand:ANYF 1 "register_operand" "f")
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- (match_operand:ANYF 2 "register_operand" "f")]
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- UNSPEC_FCOPYSIGN))]
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+ (copysign:ANYF (match_operand:ANYF 1 "register_operand" "f")
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+ (match_operand:ANYF 2 "register_operand" "f")))]
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"TARGET_HARD_FLOAT"
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"fcopysign.<fmt>\t%0,%1,%2"
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[(set_attr "type" "fcopysign")
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--
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2.43.0
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