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Subject[PATCH v7 23/23] powerpc32: Remove one insn in mulhdu
Date
Remove one instruction in mulhdu

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
---
v2: new
v3: no change
v4: no change
v5: no change
v6: no change
v7: no change

arch/powerpc/kernel/misc_32.S | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S
index 3ec5a22..bf5160f 100644
--- a/arch/powerpc/kernel/misc_32.S
+++ b/arch/powerpc/kernel/misc_32.S
@@ -91,17 +91,16 @@ _GLOBAL(mulhdu)
addc r7,r0,r7
addze r4,r4
1: beqlr cr1 /* all done if high part of A is 0 */
- mr r10,r3
mullw r9,r3,r5
- mulhwu r3,r3,r5
+ mulhwu r10,r3,r5
beq 2f
- mullw r0,r10,r6
- mulhwu r8,r10,r6
+ mullw r0,r3,r6
+ mulhwu r8,r3,r6
addc r7,r0,r7
adde r4,r4,r8
- addze r3,r3
+ addze r10,r10
2: addc r4,r4,r9
- addze r3,r3
+ addze r3,r10
blr

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