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Replace SHL+ADD with MAD

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This commit is contained in:
jsteube 2016-05-07 23:51:37 +02:00
parent 1d15ee40be
commit 89dcaeb76d
1 changed files with 16 additions and 24 deletions
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40
OpenCL/types_ocl.c
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@ -359,37 +359,29 @@ inline u32x rotr32 (const u32x a, const u32 n)
#if VECT_SIZE == 2 #if VECT_SIZE == 2
asm ("\n" asm ("shr.b32 %4, %2, %6;"
"shl.b32 %4, %2, %6;\n" "shr.b32 %5, %3, %6;"
"shl.b32 %5, %3, %6;\n" "mad.lo.u32 %0, %2, %7, %4;"
"shr.b32 %0, %2, %7;\n" "mad.lo.u32 %1, %3, %7, %5;"
"shr.b32 %1, %3, %7;\n"
"add.u32 %0, %0, %4;\n"
"add.u32 %1, %1, %5;\n"
: "=r"(r.s0), : "=r"(r.s0),
"=r"(r.s1) "=r"(r.s1)
: "r"(a.s0), : "r"(a.s0),
"r"(a.s1), "r"(a.s1),
"r"(t.s0), "r"(t.s0),
"r"(t.s1), "r"(t.s1),
"r"(32 - n), "r"(n),
"r"(n)); "r"(1 << (32 - n)));
#elif VECT_SIZE == 4 #elif VECT_SIZE == 4
asm ("\n" asm ("shr.b32 %8, %4, %12;\n"
"shl.b32 %8, %4, %12;\n" "shr.b32 %9, %5, %12;\n"
"shl.b32 %9, %5, %12;\n" "shr.b32 %10, %6, %12;\n"
"shl.b32 %10, %6, %12;\n" "shr.b32 %11, %7, %12;\n"
"shl.b32 %11, %7, %12;\n" "mad.lo.u32 %0, %4, %13, %8;\n"
"shr.b32 %0, %4, %13;\n" "mad.lo.u32 %1, %5, %13, %9;\n"
"shr.b32 %1, %5, %13;\n" "mad.lo.u32 %2, %6, %13, %10;\n"
"shr.b32 %2, %6, %13;\n" "mad.lo.u32 %3, %7, %13, %11;\n"
"shr.b32 %3, %7, %13;\n"
"add.u32 %0, %0, %8;\n"
"add.u32 %1, %1, %9;\n"
"add.u32 %2, %2, %10;\n"
"add.u32 %3, %3, %11;\n"
: "=r"(r.s0), : "=r"(r.s0),
"=r"(r.s1), "=r"(r.s1),
"=r"(r.s2), "=r"(r.s2),
@ -402,8 +394,8 @@ inline u32x rotr32 (const u32x a, const u32 n)
"r"(t.s1), "r"(t.s1),
"r"(t.s2), "r"(t.s2),
"r"(t.s3), "r"(t.s3),
"r"(32 - n), "r"(n),
"r"(n)); "r"(1 << (32 - n)));
#else #else