rs6000: Expand PROMOTE_MODE marco in rs6000_promote_function_mode

Haochen Gui · Haochen Gui · commit a3f6bd789149 · 2021-06-04T11:40:24.000+08:00
This patch prepares for the patch which disables mode
promotion of pseudos on rs6000.

gcc/ChangeLog:
	* config/rs6000/rs6000-call.c (rs6000_promote_function_mode):
	Replace PROMOTE_MODE marco with its content.
diff --git a/gcc/config/rs6000/rs6000-call.c b/gcc/config/rs6000/rs6000-call.c
@@ -6646,7 +6646,9 @@ rs6000_promote_function_mode (const_tree type ATTRIBUTE_UNUSED,
 			      int *punsignedp ATTRIBUTE_UNUSED,
 			      const_tree, int for_return ATTRIBUTE_UNUSED)
 {
-  PROMOTE_MODE (mode, *punsignedp, type);
+  if (GET_MODE_CLASS (mode) == MODE_INT
+      && GET_MODE_SIZE (mode) < (TARGET_32BIT ? 4 : 8))
+    mode = TARGET_32BIT ? SImode : DImode;
 
   return mode;
 }

Original file line number	Diff line number	Diff line change
`@@ -6646,7 +6646,9 @@ rs6000_promote_function_mode (const_tree type ATTRIBUTE_UNUSED,`
`6646`	`6646`	`int *punsignedp ATTRIBUTE_UNUSED,`
`6647`	`6647`	`const_tree, int for_return ATTRIBUTE_UNUSED)`
`6648`	`6648`	`{`
`6649`		`- PROMOTE_MODE (mode, *punsignedp, type);`
	`6649`	`+ if (GET_MODE_CLASS (mode) == MODE_INT`
	`6650`	`+ && GET_MODE_SIZE (mode) < (TARGET_32BIT ? 4 : 8))`
	`6651`	`+ mode = TARGET_32BIT ? SImode : DImode;`
`6650`	`6652`
`6651`	`6653`	`return mode;`
`6652`	`6654`	`}`