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| author |   Christophe Leroy <christophe.leroy@c-s.fr> | 2016-02-09 17:08:33 +0100 |
|---|---|---|
| committer |   Scott Wood <oss@buserror.net> | 2016-03-11 17:20:12 -0600 |
| commit | 737b01fca3f853a1f3373a79c06e4ee3a574e5b7 (patch) | |
| tree | 4f7af7fe5f42ea2821a6b65cd1274a2a7d37daff /arch/powerpc | |
| parent | powerpc32: small optimisation in flush_icache_range() (diff) | |
| download | linux-dev-737b01fca3f853a1f3373a79c06e4ee3a574e5b7.tar.xz linux-dev-737b01fca3f853a1f3373a79c06e4ee3a574e5b7.zip | |
powerpc32: Remove one insn in mulhdu
Remove one instruction in mulhdu
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Scott Wood <oss@buserror.net>
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/kernel/misc_32.S | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S index 3ec5a2204f26..bf5160fbf9d8 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 /* |