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* [gcc/devel/omp/gcc-12] amdgcn: 64-bit not
@ 2022-08-03 9:30 Andrew Stubbs
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From: Andrew Stubbs @ 2022-08-03 9:30 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:6b8d8ac8eabbb9959d888b88034fb68b8a54fda7
commit 6b8d8ac8eabbb9959d888b88034fb68b8a54fda7
Author: Andrew Stubbs <ams@codesourcery.com>
Date: Fri Jul 15 15:28:44 2022 +0100
amdgcn: 64-bit not
This makes the auto-vectorizer happier when handling masks.
gcc/ChangeLog:
* config/gcn/gcn.md (one_cmpldi2): New.
(cherry picked from commit 8f4d9c1dedac54942ad28cc1647d48959bec9e77)
Diff:
---
gcc/ChangeLog.omp | 5 +++++
gcc/config/gcn/gcn.md | 20 ++++++++++++++++++++
2 files changed, 25 insertions(+)
diff --git a/gcc/ChangeLog.omp b/gcc/ChangeLog.omp
index 7728dd9b2bf..c1de5d4f4ac 100644
--- a/gcc/ChangeLog.omp
+++ b/gcc/ChangeLog.omp
@@ -1,3 +1,8 @@
+2022-08-02 Andrew Stubbs <ams@codesourcery.com>
+
+ Backport from mainline:
+ * config/gcn/gcn.md (one_cmpldi2): New.
+
2022-08-01 Tobias Burnus <tobias@codesourcery.com>
Backport from mainline:
diff --git a/gcc/config/gcn/gcn.md b/gcc/config/gcn/gcn.md
index 0f9381c9194..7197d2f5a2e 100644
--- a/gcc/config/gcn/gcn.md
+++ b/gcc/config/gcn/gcn.md
@@ -1709,6 +1709,26 @@
;; }}}
;; {{{ ALU: generic 64-bit
+(define_insn_and_split "one_cmpldi2"
+ [(set (match_operand:DI 0 "register_operand" "=Sg, v")
+ (not:DI (match_operand:DI 1 "gcn_alu_operand" "SgA,vSvDB")))
+ (clobber (match_scratch:BI 2 "=cs, X"))]
+ ""
+ "#"
+ "reload_completed"
+ [(parallel [(set (match_dup 3) (not:SI (match_dup 4)))
+ (clobber (match_dup 2))])
+ (parallel [(set (match_dup 5) (not:SI (match_dup 6)))
+ (clobber (match_dup 2))])]
+ {
+ operands[3] = gcn_operand_part (DImode, operands[0], 0);
+ operands[4] = gcn_operand_part (DImode, operands[1], 0);
+ operands[5] = gcn_operand_part (DImode, operands[0], 1);
+ operands[6] = gcn_operand_part (DImode, operands[1], 1);
+ }
+ [(set_attr "type" "mult")]
+)
+
(define_code_iterator vec_and_scalar64_com [and ior xor])
(define_insn_and_split "<expander>di3"
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