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* [gcc r12-7357] nvptx: Back-end portion of a fix for PR target/104489.
@ 2022-02-23 7:26 Roger Sayle
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From: Roger Sayle @ 2022-02-23 7:26 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:06770148711226ba243b964451dfa8816d5d23e5
commit r12-7357-g06770148711226ba243b964451dfa8816d5d23e5
Author: Roger Sayle <roger@nextmovesoftware.com>
Date: Wed Feb 23 07:24:50 2022 +0000
nvptx: Back-end portion of a fix for PR target/104489.
This one line fix/tweak is the back-end specific change for a fix for
PR target/104489, that allows the ISA for GCC's nvptx backend to be bumped
to sm_53. The machine-independent middle-end pieces were posted here:
https://gcc.gnu.org/pipermail/gcc-patches/2022-February/590139.html
2022-02-23 Roger Sayle <roger@nextmovesoftware.com>
gcc/ChangeLog
PR target/104489
* config/nvptx/nvptx.md (*movhf_insn): Add subregs_ok attribute.
Diff:
---
gcc/config/nvptx/nvptx.md | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/gcc/config/nvptx/nvptx.md b/gcc/config/nvptx/nvptx.md
index f6dc817632c..216e89f230a 100644
--- a/gcc/config/nvptx/nvptx.md
+++ b/gcc/config/nvptx/nvptx.md
@@ -288,7 +288,8 @@
"@
%.\\tmov.b16\\t%0, %1;
%.\\tld.b16\\t%0, %1;
- %.\\tst.b16\\t%0, %1;")
+ %.\\tst.b16\\t%0, %1;"
+ [(set_attr "subregs_ok" "true")])
(define_expand "movhf"
[(set (match_operand:HF 0 "nonimmediate_operand" "")
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