From: Andrew Stubbs <ams@baylibre.com>
Date: Fri, 9 Aug 2024 11:45:42 +0000 (+0000)
Subject: amdgcn: Add padding to trampoline
X-Git-Tag: basepoints/gcc-16~6707
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b5a09a68bf0feaf0b0678d8f3433f776238d3896;p=thirdparty%2Fgcc.git

amdgcn: Add padding to trampoline

This avoids a -Wpadded warning (testcase gcc.dg/20050607-1.c).

gcc/ChangeLog:

	* config/gcn/gcn.cc (gcn_asm_trampoline_template): Add .align.
	* config/gcn/gcn.h (TRAMPOLINE_SIZE): Increase to 40.
---

diff --git a/gcc/config/gcn/gcn.cc b/gcc/config/gcn/gcn.cc
index 0725d15c8ed..17316a7ddb8 100644
--- a/gcc/config/gcn/gcn.cc
+++ b/gcc/config/gcn/gcn.cc
@@ -3794,6 +3794,7 @@ gcn_asm_trampoline_template (FILE *f)
   asm_fprintf (f, "\ts_mov_b32\ts%i, 0xffff\n", CC_SAVE_REG);
   asm_fprintf (f, "\ts_mov_b32\ts%i, 0xffff\n", CC_SAVE_REG + 1);
   asm_fprintf (f, "\ts_setpc_b64\ts[%i:%i]\n", CC_SAVE_REG, CC_SAVE_REG + 1);
+  asm_fprintf (f, "\t.align 8\n");
 }
 
 /* Implement TARGET_TRAMPOLINE_INIT.
diff --git a/gcc/config/gcn/gcn.h b/gcc/config/gcn/gcn.h
index e3bfd29c17d..bd2afa61c10 100644
--- a/gcc/config/gcn/gcn.h
+++ b/gcc/config/gcn/gcn.h
@@ -831,7 +831,7 @@ enum gcn_builtin_codes
 #define PROFILE_BEFORE_PROLOGUE 0
 
 /* Trampolines */
-#define TRAMPOLINE_SIZE 36
+#define TRAMPOLINE_SIZE 40  /* 36 + 4 padding for alignment.  */
 #define TRAMPOLINE_ALIGNMENT 64
 
 /* MD Optimization.