[gcc/devel/ranger] amdgcn: Support unordered floating-point comparison operators

[Aldy Hernandez]

https://gcc.gnu.org/g:1dff18a181b02355cbea5ebcc2c5d0b92ec64d0c

commit 1dff18a181b02355cbea5ebcc2c5d0b92ec64d0c
Author: Kwok Cheung Yeung <kcy@codesourcery.com>
Date:   Fri Apr 3 03:03:35 2020 -0700

    amdgcn: Support unordered floating-point comparison operators
    
    2020-04-03  Kwok Cheung Yeung  <kcy@codesourcery.com>
    
            gcc/
            * config/gcn/gcn.c (print_operand): Handle unordered comparison
            operators.
            * config/gcn/predicates.md (gcn_fp_compare_operator): Add unordered
            comparison operators.

Diff:
---
 gcc/ChangeLog                |  7 +++++++
 gcc/config/gcn/gcn.c         | 15 +++++++++++++++
 gcc/config/gcn/predicates.md |  2 +-
 3 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 472ce173ed2..11510ac9411 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2020-04-03  Kwok Cheung Yeung  <kcy@codesourcery.com>
+
+	* config/gcn/gcn.c (print_operand): Handle unordered comparison
+	operators.
+	* config/gcn/predicates.md (gcn_fp_compare_operator): Add unordered
+	comparison operators.
+
 2020-04-03  Kewen Lin  <linkw@gcc.gnu.org>
 
 	PR tree-optimization/94443
diff --git a/gcc/config/gcn/gcn.c b/gcc/config/gcn/gcn.c
index 12438cf6eb4..38b5b98c7c8 100644
--- a/gcc/config/gcn/gcn.c
+++ b/gcc/config/gcn/gcn.c
@@ -6007,6 +6007,21 @@ print_operand (FILE *file, rtx x, int code)
 	  case UNORDERED:
 	    s = "_u_";
 	    break;
+	  case UNEQ:
+	    s = "_nlg_";
+	    break;
+	  case UNGE:
+	    s = "_nlt_";
+	    break;
+	  case UNGT:
+	    s = "_nle_";
+	    break;
+	  case UNLE:
+	    s = "_ngt_";
+	    break;
+	  case UNLT:
+	    s = "_nge_";
+	    break;
 	  case LTGT:
 	    s = "_lg_";
 	    break;
diff --git a/gcc/config/gcn/predicates.md b/gcc/config/gcn/predicates.md
index 7bf763a4ba5..91e5ca1111c 100644
--- a/gcc/config/gcn/predicates.md
+++ b/gcc/config/gcn/predicates.md
@@ -165,7 +165,7 @@
   (match_code "eq,ne,gt,ge,lt,le,gtu,geu,ltu,leu"))
 
 (define_predicate "gcn_fp_compare_operator"
-  (match_code "eq,ne,gt,ge,lt,le,gtu,geu,ltu,leu,ordered,unordered,ltgt"))
+  (match_code "eq,ne,gt,ge,lt,le,gtu,geu,ltu,leu,ordered,unordered,uneq,unge,ungt,unle,unlt,ltgt"))
 
 (define_predicate "unary_operator"
   (match_code "not,popcount"))