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MIPS: fix error with number of registers.
Some versions of compiler in debug build can't find a register in class 'GR_REGS' while reloading 'asm' Number of used registers is decreased in this fix. Change-Id: I7d7b8172b8f37f1de4db3d8534a346d7a72c5065
This commit is contained in:
Djordje Pesut
parent
b1dabe3767
commit
7955152d58
@ -20,11 +20,6 @@
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#include "../enc/vp8enci.h"
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#include "../enc/cost.h"
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// TODO(djordje): this fails in optimized builds:
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// error: can't find a register in class 'GR_REGS' while reloading 'asm'
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// error: 'asm' operand has impossible constraints
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#ifdef __OPTIMIZE__
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static const int kC1 = 20091 + (1 << 16);
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static const int kC2 = 35468;
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@ -34,26 +29,26 @@ static const int kC2 = 35468;
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// A..D - offsets in bytes to load from in buffer
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// TEMP0..TEMP3 - registers for corresponding tmp elements
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// TEMP4..TEMP5 - temporary registers
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#define VERTICAL_PASS(A, B, C, D, TEMP4, TEMP5, TEMP0, TEMP1, TEMP2, TEMP3) \
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#define VERTICAL_PASS(A, B, C, D, TEMP4, TEMP0, TEMP1, TEMP2, TEMP3) \
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"lh %[temp16], "#A"(%[temp20]) \n\t" \
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"lh %[temp18], "#B"(%[temp20]) \n\t" \
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"lh %[temp17], "#C"(%[temp20]) \n\t" \
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"lh %[temp19], "#D"(%[temp20]) \n\t" \
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"addu %["#TEMP4"], %[temp16], %[temp18] \n\t" \
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"subu %["#TEMP5"], %[temp16], %[temp18] \n\t" \
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"mul %[temp16], %[temp17], %[kC2] \n\t" \
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"subu %[temp16], %[temp16], %[temp18] \n\t" \
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"mul %["#TEMP0"], %[temp17], %[kC2] \n\t" \
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"mul %[temp18], %[temp19], %[kC1] \n\t" \
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"mul %[temp17], %[temp17], %[kC1] \n\t" \
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"mul %[temp19], %[temp19], %[kC2] \n\t" \
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"sra %[temp16], %[temp16], 16 \n\n" \
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"sra %["#TEMP0"], %["#TEMP0"], 16 \n\n" \
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"sra %[temp18], %[temp18], 16 \n\n" \
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"sra %[temp17], %[temp17], 16 \n\n" \
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"sra %[temp19], %[temp19], 16 \n\n" \
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"subu %["#TEMP2"], %[temp16], %[temp18] \n\t" \
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"subu %["#TEMP2"], %["#TEMP0"], %[temp18] \n\t" \
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"addu %["#TEMP3"], %[temp17], %[temp19] \n\t" \
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"addu %["#TEMP0"], %["#TEMP4"], %["#TEMP3"] \n\t" \
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"addu %["#TEMP1"], %["#TEMP5"], %["#TEMP2"] \n\t" \
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"subu %["#TEMP2"], %["#TEMP5"], %["#TEMP2"] \n\t" \
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"addu %["#TEMP1"], %[temp16], %["#TEMP2"] \n\t" \
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"subu %["#TEMP2"], %[temp16], %["#TEMP2"] \n\t" \
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"subu %["#TEMP3"], %["#TEMP4"], %["#TEMP3"] \n\t"
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// macro for one horizontal pass in ITransformOne
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@ -101,35 +96,36 @@ static const int kC2 = 35468;
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"movn %["#TEMP4"], $zero, %[temp17] \n\t" \
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"movn %["#TEMP8"], $zero, %[temp18] \n\t" \
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"movn %["#TEMP12"], $zero, %[temp19] \n\t" \
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"slt %[temp16], %["#TEMP0"], %[temp21] \n\t" \
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"slt %[temp17], %["#TEMP4"], %[temp21] \n\t" \
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"slt %[temp18], %["#TEMP8"], %[temp21] \n\t" \
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"slt %[temp19], %["#TEMP12"], %[temp21] \n\t" \
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"lw %[temp20], 8(%[args]) \n\t" \
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"movz %["#TEMP0"], %[temp21], %[temp16] \n\t" \
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"movz %["#TEMP4"], %[temp21], %[temp17] \n\t" \
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"movz %["#TEMP8"], %[temp21], %[temp18] \n\t" \
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"movz %["#TEMP12"], %[temp21], %[temp19] \n\t" \
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"sb %["#TEMP0"], "#A"(%[temp20]) \n\t" \
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"sb %["#TEMP4"], "#B"(%[temp20]) \n\t" \
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"sb %["#TEMP8"], "#C"(%[temp20]) \n\t" \
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"sb %["#TEMP12"], "#D"(%[temp20]) \n\t"
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"addiu %[temp20], $zero, 255 \n\t" \
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"slt %[temp16], %["#TEMP0"], %[temp20] \n\t" \
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"slt %[temp17], %["#TEMP4"], %[temp20] \n\t" \
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"slt %[temp18], %["#TEMP8"], %[temp20] \n\t" \
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"slt %[temp19], %["#TEMP12"], %[temp20] \n\t" \
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"movz %["#TEMP0"], %[temp20], %[temp16] \n\t" \
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"movz %["#TEMP4"], %[temp20], %[temp17] \n\t" \
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"lw %[temp16], 8(%[args]) \n\t" \
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"movz %["#TEMP8"], %[temp20], %[temp18] \n\t" \
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"movz %["#TEMP12"], %[temp20], %[temp19] \n\t" \
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"sb %["#TEMP0"], "#A"(%[temp16]) \n\t" \
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"sb %["#TEMP4"], "#B"(%[temp16]) \n\t" \
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"sb %["#TEMP8"], "#C"(%[temp16]) \n\t" \
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"sb %["#TEMP12"], "#D"(%[temp16]) \n\t"
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// Does one or two inverse transforms.
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static WEBP_INLINE void ITransformOne(const uint8_t* ref, const int16_t* in,
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uint8_t* dst) {
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int temp0, temp1, temp2, temp3, temp4, temp5, temp6;
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int temp7, temp8, temp9, temp10, temp11, temp12, temp13;
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int temp14, temp15, temp16, temp17, temp18, temp19, temp20, temp21;
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int temp14, temp15, temp16, temp17, temp18, temp19, temp20;
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const int* args[3] = {(const int*)ref, (const int*)in, (const int*)dst};
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__asm__ volatile(
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"lw %[temp20], 4(%[args]) \n\t"
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VERTICAL_PASS(0, 16, 8, 24, temp4, temp5, temp0, temp1, temp2, temp3)
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VERTICAL_PASS(2, 18, 10, 26, temp8, temp9, temp4, temp5, temp6, temp7)
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VERTICAL_PASS(4, 20, 12, 28, temp12, temp13, temp8, temp9, temp10, temp11)
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VERTICAL_PASS(6, 22, 14, 30, temp20, temp21, temp12, temp13, temp14, temp15)
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"addiu %[temp21], $zero, 255 \n\t"
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VERTICAL_PASS(0, 16, 8, 24, temp4, temp0, temp1, temp2, temp3)
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VERTICAL_PASS(2, 18, 10, 26, temp8, temp4, temp5, temp6, temp7)
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VERTICAL_PASS(4, 20, 12, 28, temp12, temp8, temp9, temp10, temp11)
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VERTICAL_PASS(6, 22, 14, 30, temp20, temp12, temp13, temp14, temp15)
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HORIZONTAL_PASS( 0, 1, 2, 3, temp0, temp4, temp8, temp12)
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HORIZONTAL_PASS(16, 17, 18, 19, temp1, temp5, temp9, temp13)
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HORIZONTAL_PASS(32, 33, 34, 35, temp2, temp6, temp10, temp14)
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@ -141,8 +137,7 @@ static WEBP_INLINE void ITransformOne(const uint8_t* ref, const int16_t* in,
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[temp9]"=&r"(temp9), [temp10]"=&r"(temp10), [temp11]"=&r"(temp11),
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[temp12]"=&r"(temp12), [temp13]"=&r"(temp13), [temp14]"=&r"(temp14),
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[temp15]"=&r"(temp15), [temp16]"=&r"(temp16), [temp17]"=&r"(temp17),
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[temp18]"=&r"(temp18), [temp19]"=&r"(temp19), [temp20]"=&r"(temp20),
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[temp21]"=&r"(temp21)
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[temp18]"=&r"(temp18), [temp19]"=&r"(temp19), [temp20]"=&r"(temp20)
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: [args]"r"(args), [kC1]"r"(kC1), [kC2]"r"(kC2)
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: "memory", "hi", "lo"
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);
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@ -159,8 +154,6 @@ static void ITransform(const uint8_t* ref, const int16_t* in,
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#undef VERTICAL_PASS
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#undef HORIZONTAL_PASS
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#endif // __OPTIMIZE__
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// macro for one pass through for loop in QuantizeBlock
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// QUANTDIV macro inlined
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// J - offset in bytes (kZigzag[n] * 2)
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@ -761,9 +754,7 @@ extern void VP8EncDspInitMIPS32(void);
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void VP8EncDspInitMIPS32(void) {
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#if defined(WEBP_USE_MIPS32)
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#ifdef __OPTIMIZE__
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VP8ITransform = ITransform;
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#endif
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VP8EncQuantizeBlock = QuantizeBlock;
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VP8TDisto4x4 = Disto4x4;
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VP8TDisto16x16 = Disto16x16;
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