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#include "Cmm.h"
// Test that the Memcpy, Memmove, Memset GHC intrinsic functions
// are working correctly.
section "rodata" { memsetErr : bits8[] "Memset Error - align: %d size: %d\n"; }
section "rodata" { memcpyErr : bits8[] "Memcpy Error - align: %d size: %d\n"; }
// You have to call printf with the same number of args for every call.
// This is as the LLVM backend doesn't support vararg functions.
section "rodata" { memmoveErr : bits8[] "Memmove Error Occured\n"; }
memintrinTest (W_ dummy)
{
W_ size, src, dst, off, set;
bits8 set8;
// Need two versions as memset takes a word for historical reasons
// but really its a bits8. We check that setting has ben done correctly
// at the bits8 level, so need bits8 version for checking.
set = 4;
set8 = 4::bits8;
size = 1024;
// Alignment must be constant expression
#define alignV 4
("ptr" src) = foreign "C" malloc(size);
("ptr" dst) = foreign "C" malloc(size);
// Test memset
prim %memset(src, set, size, alignV);
// Check memset worked
off = 0;
while1:
if (off == size) {
goto while1_end;
}
if (bits8[src + off] != set8) {
// call with two dummy args for LLVM's benefit.
// they'll be ignored by printf
foreign "C" printf(memsetErr "ptr", 0, 0);
goto while1_end;
}
off = off + 1;
goto while1;
while1_end:
// Test memcpy
prim %memcpy(dst, src, size, alignV);
// Check memcpy worked
off = 0;
while2:
if (off == size) {
goto while2_end;
}
if (bits8[dst + off] != set8) {
foreign "C" printf(memcpyErr, 0, 0);
goto while2_end;
}
off = off + 1;
goto while2;
while2_end:
// Test memove
set = 8;
set8 = 8::bits8;
size = 100;
W_ src2;
src2 = src + 50;
prim %memset(src, set, size, alignV);
prim %memmove(src2, src, size, alignV);
// Check memmove worked
off = 0;
while3:
if (off == size) {
goto while3_end;
}
if (bits8[src2 + off] != set8) {
foreign "C" printf(memmoveErr "ptr", 0, 0);
goto while3_end;
}
off = off + 1;
goto while3;
while3_end:
foreign "C" free(src);
foreign "C" free(dst);
return (0);
}
#undef alignV
// ---------------------------------------------------------------------
// Tests for unrolling
// We generate code for each configuration of alignment and size rather
// than looping over the possible alignments/sizes as the alignment and
// size needs to be statically known for unrolling to happen.
// Below we need both 'set' and 'set8' as memset takes a word for
// historical reasons but really its a bits8. We check that setting
// has ben done correctly at the bits8 level, so need bits8 version
// for checking.
#define TEST_MEMSET(ALIGN,SIZE) \
W_ size, src, dst, off, set; \
bits8 set8; \
set = 4; \
set8 = 4::bits8; \
size = SIZE; \
("ptr" src) = foreign "C" malloc(size); \
("ptr" dst) = foreign "C" malloc(size); \
prim %memset(src, set, size, ALIGN); \
off = 0; \
loop: \
if (off == size) { \
goto loop_end; \
} \
if (bits8[src + off] != set8) { \
foreign "C" printf(memsetErr "ptr", ALIGN, SIZE); \
goto loop_end; \
} \
off = off + 1; \
goto loop; \
loop_end: \
foreign "C" free(src); \
foreign "C" free(dst); \
return (0);
// This is not exactly beutiful but we need the separate functions to
// avoid collisions between labels.
//
// The specific tests are selected with knowledge of the implementation
// in mind in order to try to cover all branches and interesting corner
// cases.
testMemset8_0 (W_ dummy) { TEST_MEMSET(8,0); }
testMemset8_8 (W_ dummy) { TEST_MEMSET(8,8); }
testMemset8_9 (W_ dummy) { TEST_MEMSET(8,9); }
testMemset8_10 (W_ dummy) { TEST_MEMSET(8,10); }
testMemset8_11 (W_ dummy) { TEST_MEMSET(8,11); }
testMemset8_12 (W_ dummy) { TEST_MEMSET(8,12); }
testMemset8_13 (W_ dummy) { TEST_MEMSET(8,13); }
testMemset8_14 (W_ dummy) { TEST_MEMSET(8,14); }
testMemset8_15 (W_ dummy) { TEST_MEMSET(8,15); }
testMemset8_16 (W_ dummy) { TEST_MEMSET(8,16); }
testMemset4_0 (W_ dummy) { TEST_MEMSET(4,0); }
testMemset4_4 (W_ dummy) { TEST_MEMSET(4,4); }
testMemset4_5 (W_ dummy) { TEST_MEMSET(4,5); }
testMemset4_6 (W_ dummy) { TEST_MEMSET(4,6); }
testMemset4_7 (W_ dummy) { TEST_MEMSET(4,7); }
testMemset4_8 (W_ dummy) { TEST_MEMSET(4,8); }
#define TEST_MEMCPY(ALIGN,SIZE) \
W_ size, src, dst, off; \
size = SIZE; \
("ptr" src) = foreign "C" malloc(size); \
("ptr" dst) = foreign "C" malloc(size); \
off = 0; \
init: \
if (off == size) { \
goto init_end; \
} \
bits8[src + off] = 0xaa; \
off = off + 1; \
goto init; \
init_end: \
prim %memcpy(dst, src, size, ALIGN); \
off = 0; \
loop: \
if (off == size) { \
goto loop_end; \
} \
if (bits8[dst + off] != bits8[src + off]) { \
foreign "C" printf(memcpyErr "ptr", ALIGN, SIZE); \
goto loop_end; \
} \
off = off + 1; \
goto loop; \
loop_end: \
foreign "C" free(src); \
foreign "C" free(dst); \
return (0);
testMemcpy8_0 (W_ dummy) { TEST_MEMCPY(8,0); }
testMemcpy8_8 (W_ dummy) { TEST_MEMCPY(8,8); }
testMemcpy8_9 (W_ dummy) { TEST_MEMCPY(8,9); }
testMemcpy8_10 (W_ dummy) { TEST_MEMCPY(8,10); }
testMemcpy8_11 (W_ dummy) { TEST_MEMCPY(8,11); }
testMemcpy8_12 (W_ dummy) { TEST_MEMCPY(8,12); }
testMemcpy8_13 (W_ dummy) { TEST_MEMCPY(8,13); }
testMemcpy8_14 (W_ dummy) { TEST_MEMCPY(8,14); }
testMemcpy8_15 (W_ dummy) { TEST_MEMCPY(8,15); }
testMemcpy8_16 (W_ dummy) { TEST_MEMCPY(8,16); }
testMemcpy4_0 (W_ dummy) { TEST_MEMCPY(4,0); }
testMemcpy4_4 (W_ dummy) { TEST_MEMCPY(4,4); }
testMemcpy4_5 (W_ dummy) { TEST_MEMCPY(4,5); }
testMemcpy4_6 (W_ dummy) { TEST_MEMCPY(4,6); }
testMemcpy4_7 (W_ dummy) { TEST_MEMCPY(4,7); }
testMemcpy4_8 (W_ dummy) { TEST_MEMCPY(4,8); }
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