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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2017-03-07 07:58:11 +0100 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2017-03-07 07:58:11 +0100 |
| commit | a11e1ff57688a5cee5b0f807b970fe9eec05ac62 (patch) | |
| tree | 3d8672b0e8b414ea9076de85abd46e28af203176 /c/src/lib/libcpu/powerpc/new-exceptions | |
| parent | powerpc: Fix AltiVec context switch (diff) | |
| download | rtems-a11e1ff57688a5cee5b0f807b970fe9eec05ac62.tar.bz2 | |
powerpc: Optimize AltiVec context switch
Use r8 instead of r5 to slightly optimize _CPU_Context_switch(). It is
not a big deal, however, we already assume r12 is used by
_CPU_Context_switch(). Treat r5 the in same way.
Diffstat (limited to 'c/src/lib/libcpu/powerpc/new-exceptions')
| -rw-r--r-- | c/src/lib/libcpu/powerpc/new-exceptions/cpu_asm.S | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/c/src/lib/libcpu/powerpc/new-exceptions/cpu_asm.S b/c/src/lib/libcpu/powerpc/new-exceptions/cpu_asm.S index a1ec64b8e4..c0e11da076 100644 --- a/c/src/lib/libcpu/powerpc/new-exceptions/cpu_asm.S +++ b/c/src/lib/libcpu/powerpc/new-exceptions/cpu_asm.S @@ -435,11 +435,9 @@ PROC (_CPU_Context_switch): restore_context: #if defined(__ALTIVEC__) && !defined(PPC_MULTILIB_ALTIVEC) - mr r14, r5 mr r4, r5 .extern _CPU_Context_switch_altivec bl _CPU_Context_switch_altivec - mr r5, r14 #endif lwz r1, PPC_CONTEXT_OFFSET_GPR1(r5) |