From: Julian Brown <julian@codesourcery.com>
Date: Fri, 5 Jun 2009 13:52:36 +0000 (+0000)
Subject: ieee754-df.S (cmpdf2): Avoid writing below SP.
X-Git-Tag: releases/gcc-4.5.0~5356
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=b89f8e3cf93504308c957b408a96ef2866567ccc;p=thirdparty%2Fgcc.git

ieee754-df.S (cmpdf2): Avoid writing below SP.

	gcc/
	* config/arm/ieee754-df.S (cmpdf2): Avoid writing below SP.
	* config/arm/ieee754-sf.S (cmpsf2): Likewise.

From-SVN: r148210
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ebeaf290471e..e7731bc948e2 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2009-06-05  Julian Brown  <julian@codesourcery.com>
+
+	* config/arm/ieee754-df.S (cmpdf2): Avoid writing below SP.
+	* config/arm/ieee754-sf.S (cmpsf2): Likewise.
+
 2009-06-05  Richard Guenther  <rguenther@suse.de>
 
 	PR bootstrap/40350
diff --git a/gcc/config/arm/ieee754-df.S b/gcc/config/arm/ieee754-df.S
index 19a6f2c6facb..eb0c38632d01 100644
--- a/gcc/config/arm/ieee754-df.S
+++ b/gcc/config/arm/ieee754-df.S
@@ -1117,7 +1117,7 @@ ARM_FUNC_ALIAS nedf2 cmpdf2
 ARM_FUNC_ALIAS eqdf2 cmpdf2
 	mov	ip, #1			@ how should we specify unordered here?
 
-1:	str	ip, [sp, #-4]
+1:	str	ip, [sp, #-4]!
 
 	@ Trap any INF/NAN first.
 	mov	ip, xh, lsl #1
@@ -1129,7 +1129,8 @@ ARM_FUNC_ALIAS eqdf2 cmpdf2
 
 	@ Test for equality.
 	@ Note that 0.0 is equal to -0.0.
-2:	orrs	ip, xl, xh, lsl #1	@ if x == 0.0 or -0.0
+2:	add	sp, sp, #4
+	orrs	ip, xl, xh, lsl #1	@ if x == 0.0 or -0.0
 	do_it	eq, e
 	COND(orr,s,eq)	ip, yl, yh, lsl #1	@ and y == 0.0 or -0.0
 	teqne	xh, yh			@ or xh == yh
@@ -1168,7 +1169,7 @@ ARM_FUNC_ALIAS eqdf2 cmpdf2
 	bne	2b
 	orrs	ip, yl, yh, lsl #12
 	beq	2b			@ y is not NAN
-5:	ldr	r0, [sp, #-4]		@ unordered return code
+5:	ldr	r0, [sp], #4		@ unordered return code
 	RET
 
 	FUNC_END gedf2
diff --git a/gcc/config/arm/ieee754-sf.S b/gcc/config/arm/ieee754-sf.S
index 38df203afbcc..c93f66d8ff8c 100644
--- a/gcc/config/arm/ieee754-sf.S
+++ b/gcc/config/arm/ieee754-sf.S
@@ -822,7 +822,7 @@ ARM_FUNC_ALIAS nesf2 cmpsf2
 ARM_FUNC_ALIAS eqsf2 cmpsf2
 	mov	ip, #1			@ how should we specify unordered here?
 
-1:	str	ip, [sp, #-4]
+1:	str	ip, [sp, #-4]!
 
 	@ Trap any INF/NAN first.
 	mov	r2, r0, lsl #1
@@ -834,7 +834,8 @@ ARM_FUNC_ALIAS eqsf2 cmpsf2
 
 	@ Compare values.
 	@ Note that 0.0 is equal to -0.0.
-2:	orrs	ip, r2, r3, lsr #1	@ test if both are 0, clear C flag
+2:	add	sp, sp, #4
+	orrs	ip, r2, r3, lsr #1	@ test if both are 0, clear C flag
 	do_it	ne
 	teqne	r0, r1			@ if not 0 compare sign
 	do_it	pl
@@ -858,7 +859,7 @@ ARM_FUNC_ALIAS eqsf2 cmpsf2
 	bne	2b
 	movs	ip, r1, lsl #9
 	beq	2b			@ r1 is not NAN
-5:	ldr	r0, [sp, #-4]		@ return unordered code.
+5:	ldr	r0, [sp], #4		@ return unordered code.
 	RET
 
 	FUNC_END gesf2