This patch adds support for the LTGT FP comparison operator that was
previously missing from the backend, and apparently not optional (unlike
UNLE etc).
It wasn't that we couldn't have it (also unlike UNLE), we just didn't.
Besides just correcting an omission, this also fixes an ICE in testcase
gcc.dg/pr81228.c.
Andrew
Add LTGT operator support for amdgcn
Fixes ICE in testcase gcc.dg/pr81228.c
2020-01-30 Andrew Stubbs <a...@codesourcery.com>
gcc/
* config/gcn/gcn.c (print_operand): Handle LTGT.
* config/gcn/predicates.md (gcn_fp_compare_operator): Allow ltgt.
diff --git a/gcc/config/gcn/gcn.c b/gcc/config/gcn/gcn.c
index c78df1d5e3e..a39e9f3fbd6 100644
--- a/gcc/config/gcn/gcn.c
+++ b/gcc/config/gcn/gcn.c
@@ -5929,6 +5929,9 @@ print_operand (FILE *file, rtx x, int code)
case UNORDERED:
s = "_u_";
break;
+ case LTGT:
+ s = "_lg_";
+ break;
default:
output_operand_lossage ("invalid %%xn code");
return;
diff --git a/gcc/config/gcn/predicates.md b/gcc/config/gcn/predicates.md
index 2f904b1f131..7bf763a4ba5 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"))
+ (match_code "eq,ne,gt,ge,lt,le,gtu,geu,ltu,leu,ordered,unordered,ltgt"))
(define_predicate "unary_operator"
(match_code "not,popcount"))
