From: Torbjörn SVENSSON <torbjorn.svensson@foss.st.com>
Date: Sat, 27 Apr 2024 13:57:27 +0000 (+0200)
Subject: testsuite: Verify r0-r3 are extended with CMSE
X-Git-Tag: basepoints/gcc-16~8776
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9ddad76e98ac8f257f90b3814ed3c6ba78d0f3c7;p=thirdparty%2Fgcc.git

testsuite: Verify r0-r3 are extended with CMSE

Add regression test to the existing zero/sign extend tests for CMSE to
verify that r0, r1, r2 and r3 are properly extended, not just r0.

boolCharShortEnumSecureFunc test is done using -O0 to ensure the
instructions are in a predictable order.

gcc/testsuite/ChangeLog:

	* gcc.target/arm/cmse/extend-param.c: Add regression test. Add
	-fshort-enums.
	* gcc.target/arm/cmse/extend-return.c: Add -fshort-enums option.

Signed-off-by: Torbjörn SVENSSON <torbjorn.svensson@foss.st.com>
---

diff --git a/gcc/testsuite/gcc.target/arm/cmse/extend-param.c b/gcc/testsuite/gcc.target/arm/cmse/extend-param.c
index 01fac7862385..d01ef87e0be8 100644
--- a/gcc/testsuite/gcc.target/arm/cmse/extend-param.c
+++ b/gcc/testsuite/gcc.target/arm/cmse/extend-param.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-mcmse" } */
+/* { dg-options "-mcmse -fshort-enums" } */
 /* { dg-final { check-function-bodies "**" "" "" } } */
 
 #include <arm_cmse.h>
@@ -78,7 +78,6 @@ __attribute__((cmse_nonsecure_entry)) char enumSecureFunc (enum offset index) {
   if (index >= ARRAY_SIZE)
     return 0;
   return array[index];
-
 }
 
 /*
@@ -88,9 +87,23 @@ __attribute__((cmse_nonsecure_entry)) char enumSecureFunc (enum offset index) {
 **	...
 */
 __attribute__((cmse_nonsecure_entry)) char boolSecureFunc (bool index) {
-
   if (index >= ARRAY_SIZE)
     return 0;
   return array[index];
+}
 
-}
\ No newline at end of file
+/*
+**__acle_se_boolCharShortEnumSecureFunc:
+**	...
+**	uxtb	r0, r0
+**	uxtb	r1, r1
+**	uxth	r2, r2
+**	uxtb	r3, r3
+**	...
+*/
+__attribute__((cmse_nonsecure_entry,optimize(0))) char boolCharShortEnumSecureFunc (bool a, unsigned char b, unsigned short c, enum offset d) {
+  size_t index = a + b + c + d;
+  if (index >= ARRAY_SIZE)
+    return 0;
+  return array[index];
+}
diff --git a/gcc/testsuite/gcc.target/arm/cmse/extend-return.c b/gcc/testsuite/gcc.target/arm/cmse/extend-return.c
index cf731ed33df7..081de0d699f8 100644
--- a/gcc/testsuite/gcc.target/arm/cmse/extend-return.c
+++ b/gcc/testsuite/gcc.target/arm/cmse/extend-return.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-mcmse" } */
+/* { dg-options "-mcmse -fshort-enums" } */
 /* { dg-final { check-function-bodies "**" "" "" } } */
 
 #include <arm_cmse.h>
@@ -89,4 +89,4 @@ unsigned char __attribute__((noipa)) enumNonsecure0 (ns_enum_foo_t * ns_foo_p)
 unsigned char boolNonsecure0 (ns_bool_foo_t * ns_foo_p)
 {
   return ns_foo_p ();
-}
\ No newline at end of file
+}