powerpc: Fix invalid use of register expressions
binutils >= 2.26 now warns about misuse of register expressions in
assembler operands that are actually literals, for example:
arch/powerpc/kernel/entry_64.S:535: Warning: invalid register expression
In practice these are almost all uses of r0 that should just be a
literal 0.
Signed-off-by: Andreas Schwab <schwab@linux-m68k.org>
[mpe: Mention r0 is almost always the culprit, fold in purgatory change]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
diff --git a/arch/powerpc/lib/memcpy_power7.S b/arch/powerpc/lib/memcpy_power7.S
index 786234f..193909a 100644
--- a/arch/powerpc/lib/memcpy_power7.S
+++ b/arch/powerpc/lib/memcpy_power7.S
@@ -261,12 +261,12 @@
.machine push
.machine "power4"
- dcbt r0,r6,0b01000
- dcbt r0,r7,0b01010
- dcbtst r0,r9,0b01000
- dcbtst r0,r10,0b01010
+ dcbt 0,r6,0b01000
+ dcbt 0,r7,0b01010
+ dcbtst 0,r9,0b01000
+ dcbtst 0,r10,0b01010
eieio
- dcbt r0,r8,0b01010 /* GO */
+ dcbt 0,r8,0b01010 /* GO */
.machine pop
beq cr1,.Lunwind_stack_nonvmx_copy
@@ -321,26 +321,26 @@
li r11,48
bf cr7*4+3,5f
- lvx v1,r0,r4
+ lvx v1,0,r4
addi r4,r4,16
- stvx v1,r0,r3
+ stvx v1,0,r3
addi r3,r3,16
5: bf cr7*4+2,6f
- lvx v1,r0,r4
+ lvx v1,0,r4
lvx v0,r4,r9
addi r4,r4,32
- stvx v1,r0,r3
+ stvx v1,0,r3
stvx v0,r3,r9
addi r3,r3,32
6: bf cr7*4+1,7f
- lvx v3,r0,r4
+ lvx v3,0,r4
lvx v2,r4,r9
lvx v1,r4,r10
lvx v0,r4,r11
addi r4,r4,64
- stvx v3,r0,r3
+ stvx v3,0,r3
stvx v2,r3,r9
stvx v1,r3,r10
stvx v0,r3,r11
@@ -366,7 +366,7 @@
*/
.align 5
8:
- lvx v7,r0,r4
+ lvx v7,0,r4
lvx v6,r4,r9
lvx v5,r4,r10
lvx v4,r4,r11
@@ -375,7 +375,7 @@
lvx v1,r4,r15
lvx v0,r4,r16
addi r4,r4,128
- stvx v7,r0,r3
+ stvx v7,0,r3
stvx v6,r3,r9
stvx v5,r3,r10
stvx v4,r3,r11
@@ -396,29 +396,29 @@
mtocrf 0x01,r6
bf cr7*4+1,9f
- lvx v3,r0,r4
+ lvx v3,0,r4
lvx v2,r4,r9
lvx v1,r4,r10
lvx v0,r4,r11
addi r4,r4,64
- stvx v3,r0,r3
+ stvx v3,0,r3
stvx v2,r3,r9
stvx v1,r3,r10
stvx v0,r3,r11
addi r3,r3,64
9: bf cr7*4+2,10f
- lvx v1,r0,r4
+ lvx v1,0,r4
lvx v0,r4,r9
addi r4,r4,32
- stvx v1,r0,r3
+ stvx v1,0,r3
stvx v0,r3,r9
addi r3,r3,32
10: bf cr7*4+3,11f
- lvx v1,r0,r4
+ lvx v1,0,r4
addi r4,r4,16
- stvx v1,r0,r3
+ stvx v1,0,r3
addi r3,r3,16
/* Up to 15B to go */
@@ -499,25 +499,25 @@
addi r4,r4,16
bf cr7*4+3,5f
- lvx v1,r0,r4
+ lvx v1,0,r4
VPERM(v8,v0,v1,v16)
addi r4,r4,16
- stvx v8,r0,r3
+ stvx v8,0,r3
addi r3,r3,16
vor v0,v1,v1
5: bf cr7*4+2,6f
- lvx v1,r0,r4
+ lvx v1,0,r4
VPERM(v8,v0,v1,v16)
lvx v0,r4,r9
VPERM(v9,v1,v0,v16)
addi r4,r4,32
- stvx v8,r0,r3
+ stvx v8,0,r3
stvx v9,r3,r9
addi r3,r3,32
6: bf cr7*4+1,7f
- lvx v3,r0,r4
+ lvx v3,0,r4
VPERM(v8,v0,v3,v16)
lvx v2,r4,r9
VPERM(v9,v3,v2,v16)
@@ -526,7 +526,7 @@
lvx v0,r4,r11
VPERM(v11,v1,v0,v16)
addi r4,r4,64
- stvx v8,r0,r3
+ stvx v8,0,r3
stvx v9,r3,r9
stvx v10,r3,r10
stvx v11,r3,r11
@@ -552,7 +552,7 @@
*/
.align 5
8:
- lvx v7,r0,r4
+ lvx v7,0,r4
VPERM(v8,v0,v7,v16)
lvx v6,r4,r9
VPERM(v9,v7,v6,v16)
@@ -569,7 +569,7 @@
lvx v0,r4,r16
VPERM(v15,v1,v0,v16)
addi r4,r4,128
- stvx v8,r0,r3
+ stvx v8,0,r3
stvx v9,r3,r9
stvx v10,r3,r10
stvx v11,r3,r11
@@ -590,7 +590,7 @@
mtocrf 0x01,r6
bf cr7*4+1,9f
- lvx v3,r0,r4
+ lvx v3,0,r4
VPERM(v8,v0,v3,v16)
lvx v2,r4,r9
VPERM(v9,v3,v2,v16)
@@ -599,27 +599,27 @@
lvx v0,r4,r11
VPERM(v11,v1,v0,v16)
addi r4,r4,64
- stvx v8,r0,r3
+ stvx v8,0,r3
stvx v9,r3,r9
stvx v10,r3,r10
stvx v11,r3,r11
addi r3,r3,64
9: bf cr7*4+2,10f
- lvx v1,r0,r4
+ lvx v1,0,r4
VPERM(v8,v0,v1,v16)
lvx v0,r4,r9
VPERM(v9,v1,v0,v16)
addi r4,r4,32
- stvx v8,r0,r3
+ stvx v8,0,r3
stvx v9,r3,r9
addi r3,r3,32
10: bf cr7*4+3,11f
- lvx v1,r0,r4
+ lvx v1,0,r4
VPERM(v8,v0,v1,v16)
addi r4,r4,16
- stvx v8,r0,r3
+ stvx v8,0,r3
addi r3,r3,16
/* Up to 15B to go */