[amdgcn] Fix ambiguous .md attribute uses

This patch is part of a series that fixes ambiguous attribute
uses in .md files, i.e. cases in which attributes didn't use
<ITER:ATTR> to specify an iterator, and in which <ATTR> could
have different values depending on the iterator chosen.

I think this is a genuine bugfix for the case in which the 1REG_MODE
and 1REG_ALT are different, since previously we would use the 1REG_MODE
for both the comparison and the select, even though the operands being
compared are 1REG_ALT rather than 1REG_MODE.

2019-07-06  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* config/gcn/gcn-valu.md
	(vcond<VEC_1REG_MODE:mode><VEC_1REG_ALT:mode>): Use
	gen_vec_cmp<VEC_1REG_ALT:mode>di rather than (implicitly)
	gen_vec_cmp<VEC_1REG_MODE:mode>di.  Explicitly use
	gen_vcond_mask_<VEC_1REG_MODE:mode>di.
	(vcond<VEC_1REG_MODE:mode><VEC_1REG_ALT:mode>_exec): Likewise,
	but using the _exec comparison patterns.
	(vcondu<VEC_1REG_INT_MODE:mode><VEC_1REG_INT_ALT:mode>): Use
	gen_vec_cmp<VEC_1REG_INT_ALT:mode>di rather than (implicitly)
	gen_vec_cmp<VEC_1REG_INT_MODE:mode>di.  Explicitly use
	gen_vcond_mask_<VEC_1REG_INT_MODE:mode>di.
	(vcondu<VEC_1REG_INT_MODE:mode><VEC_1REG_INT_ALT:mode>_exec): Likewise,
	but using the _exec comparison patterns.

From-SVN: r273159

gcc/ChangeLog

 2019-07-06  Richard Sandiford  <richard.sandiford@arm.com>
 
+	* config/gcn/gcn-valu.md
+	(vcond<VEC_1REG_MODE:mode><VEC_1REG_ALT:mode>): Use
+	gen_vec_cmp<VEC_1REG_ALT:mode>di rather than (implicitly)
+	gen_vec_cmp<VEC_1REG_MODE:mode>di.  Explicitly use
+	gen_vcond_mask_<VEC_1REG_MODE:mode>di.
+	(vcond<VEC_1REG_MODE:mode><VEC_1REG_ALT:mode>_exec): Likewise,
+	but using the _exec comparison patterns.
+	(vcondu<VEC_1REG_INT_MODE:mode><VEC_1REG_INT_ALT:mode>): Use
+	gen_vec_cmp<VEC_1REG_INT_ALT:mode>di rather than (implicitly)
+	gen_vec_cmp<VEC_1REG_INT_MODE:mode>di.  Explicitly use
+	gen_vcond_mask_<VEC_1REG_INT_MODE:mode>di.
+	(vcondu<VEC_1REG_INT_MODE:mode><VEC_1REG_INT_ALT:mode>_exec): Likewise,
+	but using the _exec comparison patterns.
+
+2019-07-06  Richard Sandiford  <richard.sandiford@arm.com>
+
 	* config/arm/sync.md
 	(@atomic_compare_and_swap<CCSI:arch><NARROW:mode>_1): Use
 	<NARROW:sync_predtab> instead of (implicitly) <CCSI:sync_predtab>.

gcc/config/gcn/gcn-valu.md

@@ -2574,10 +2574,10 @@
   ""
   {
     rtx tmp = gen_reg_rtx (DImode);
-    emit_insn (gen_vec_cmp<mode>di (tmp, operands[3], operands[4],
-				    operands[5]));
-    emit_insn (gen_vcond_mask_<mode>di (operands[0], operands[1], operands[2],
-					tmp));
+    emit_insn (gen_vec_cmp<VEC_1REG_ALT:mode>di
+	       (tmp, operands[3], operands[4], operands[5]));
+    emit_insn (gen_vcond_mask_<VEC_1REG_MODE:mode>di
+	       (operands[0], operands[1], operands[2], tmp));
     DONE;
   })
 
@@ -2592,10 +2592,10 @@
   ""
   {
     rtx tmp = gen_reg_rtx (DImode);
-    emit_insn (gen_vec_cmp<mode>di_exec (tmp, operands[3], operands[4],
-					 operands[5], operands[6]));
-    emit_insn (gen_vcond_mask_<mode>di (operands[0], operands[1], operands[2],
-					tmp));
+    emit_insn (gen_vec_cmp<VEC_1REG_ALT:mode>di_exec
+	       (tmp, operands[3], operands[4], operands[5], operands[6]));
+    emit_insn (gen_vcond_mask_<VEC_1REG_MODE:mode>di
+	       (operands[0], operands[1], operands[2], tmp));
     DONE;
   })
 
@@ -2609,10 +2609,10 @@
   ""
   {
     rtx tmp = gen_reg_rtx (DImode);
-    emit_insn (gen_vec_cmp<mode>di (tmp, operands[3], operands[4],
-				    operands[5]));
-    emit_insn (gen_vcond_mask_<mode>di (operands[0], operands[1], operands[2],
-				        tmp));
+    emit_insn (gen_vec_cmp<VEC_1REG_INT_ALT:mode>di
+	       (tmp, operands[3], operands[4], operands[5]));
+    emit_insn (gen_vcond_mask_<VEC_1REG_INT_MODE:mode>di
+	       (operands[0], operands[1], operands[2], tmp));
     DONE;
   })
 
@@ -2627,10 +2627,10 @@
   ""
   {
     rtx tmp = gen_reg_rtx (DImode);
-    emit_insn (gen_vec_cmp<mode>di_exec (tmp, operands[3], operands[4],
-					 operands[5], operands[6]));
-    emit_insn (gen_vcond_mask_<mode>di (operands[0], operands[1], operands[2],
-				        tmp));
+    emit_insn (gen_vec_cmp<VEC_1REG_INT_ALT:mode>di_exec
+	       (tmp, operands[3], operands[4], operands[5], operands[6]));
+    emit_insn (gen_vcond_mask_<VEC_1REG_INT_MODE:mode>di
+	       (operands[0], operands[1], operands[2], tmp));
     DONE;
   })