mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-23 12:52:46 +00:00
f18837f195
I always suspected the overflow conversions were UB, but with gcc doing different things on arm, I thought it was about time to abandon those particular tests. What I was not expecting was for the return value of strcmp to be "UB" (in that there's no guarantee of the exact value, just < = > 0). Fortunately, nothing actually relies on the value of the op other than the tests, so modify the test to make the behavior well defined.
190 lines
7.2 KiB
C
190 lines
7.2 KiB
C
#include "head.c"
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#include "QF/mathlib.h"
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static pr_ivec4_t uint_conv_init[] = {
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{ 5, -5, 0x80000000, 0x7fffffff}, //int
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{ 0x3fc00000, 0x40100000, 0x40700000, 0x40a00000}, //float 1.5, 2.25, 3.75, 5
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{ 99, 0x80000000, 0x80000000, 99}, //long
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{ 256, 0, 0x7fffffff, 0}, //long
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{ 0, 0x3ff80000, 0, 0x40020000}, //double 1.5, 2.25, 3.75, 5
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{ 0, 0x400e0000, 0, 0x40140000},
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{ 5, -5, 0x80000000, 0x7fffffff}, //uint
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{ ~0, 1, 0x80000000, 0}, //bool32
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{ 99, 0x80000000, 0x80000000, 99}, //ulong
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{ 256, 0, 0x7fffffff, 0}, //ulong
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{ ~0, ~0, ~0, 0}, //bool64
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{ 0, ~0, 0, 0}, //bool64
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{ 0, 0, 0, 0},
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{ 0, 0, 0, 0},
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{ 0, 0, 0, 0},
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{ 0, 0, 0, 0},
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{ 0, 0, 0, 0},
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{ 0, 0, 0, 0},
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{ 0, 0, 0, 0},
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{ 0, 0, 0, 0},
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};
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static pr_ivec4_t uint_conv_expect[] = {
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{ 5, -5, 0x80000000, 0x7fffffff}, //int
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{ 0x3fc00000, 0x40100000, 0x40700000, 0x40a00000}, //float 1.5, 2.25, 3.75, 5
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{ 99, 0x80000000, 0x80000000, 99}, //long
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{ 256, 0, 0x7fffffff, 0}, //long
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{ 0, 0x3ff80000, 0, 0x40020000}, //double 1.5, 2.25, 3.75, 5
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{ 0, 0x400e0000, 0, 0x40140000},
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{ 5, -5, 0x80000000, 0x7fffffff}, //uint
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{ ~0, 1, 0x80000000, 0}, //bool32
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{ 99, 0x80000000, 0x80000000, 99}, //ulong
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{ 256, 0, 0x7fffffff, 0}, //ulong
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{ ~0, ~0, ~0, 0}, //bool64
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{ 0, ~0, 0, 0}, //bool64
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{ 5, -5, 0x80000000, 0x7fffffff}, // int
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{ 1, 2, 3, 5}, // float
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{ 99, 0x80000000, 256, 0x7fffffff}, // long
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{ 1, 2, 3, 5}, // double
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{ 5, -5, 0x80000000, 0x7fffffff}, // uint
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{ 1, 1, 1, 0}, // bool32
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{ 99, 0x80000000, 256, 0x7fffffff}, // ulong
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{ 1, 1, 1, 0}, // bool64
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};
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static dstatement_t uint_conv_1_statements[] = {
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{ OP(0, 0, 0, OP_LEA_A), 4, 0, 80 }, // init index
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{ OP(0, 0, 0, OP_LEA_A), 8, 0, 81 }, // init index for 64-bits
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//loop:
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{ OP(0, 0, 0, OP_LEA_C), 80, -1, 80 }, // dec index
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{ OP(0, 0, 0, OP_LEA_C), 81, -2, 81 }, // dec index for 64-bits
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{ OP(0, 0, 0, OP_IFAE), 2, 0, 80 },
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{ OP(0, 0, 0, OP_BREAK), 0, 0, 0 },
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{ OP(0, 0, 0, OP_WITH), 4, 80, 1 },
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{ OP(0, 0, 0, OP_WITH), 4, 81, 2 },
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{ OP(1, 1, 1, OP_CONV), 0, 0004, 48 },
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{ OP(1, 1, 1, OP_CONV), 4, 0014, 52 },
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{ OP(2, 1, 1, OP_CONV), 8, 0024, 56 },
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{ OP(2, 1, 1, OP_CONV), 16, 0034, 60 },
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{ OP(1, 1, 1, OP_CONV), 24, 0044, 64 },
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{ OP(1, 1, 1, OP_CONV), 28, 0054, 68 },
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{ OP(2, 1, 1, OP_CONV), 32, 0064, 72 },
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{ OP(2, 1, 1, OP_CONV), 40, 0074, 76 },
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{ OP(1, 1, 1, OP_JUMP_A), -14, 0, 0 },
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};
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static dstatement_t uint_conv_2_statements[] = {
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{ OP(0, 0, 0, OP_LEA_A), 4, 0, 80 }, // index
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{ OP(0, 0, 0, OP_LEA_A), 8, 0, 81 }, // init index for 64-bits
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//loop:
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{ OP(0, 0, 0, OP_LEA_C), 80, -2, 80 }, // dec index
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{ OP(0, 0, 0, OP_LEA_C), 81, -4, 81 }, // dec index for 64-bits
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{ OP(0, 0, 0, OP_IFAE), 2, 0, 80 },
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{ OP(0, 0, 0, OP_BREAK), 0, 0, 0 },
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{ OP(0, 0, 0, OP_WITH), 4, 80, 1 },
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{ OP(0, 0, 0, OP_WITH), 4, 81, 2 },
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{ OP(1, 1, 1, OP_CONV), 0, 0104, 48 },
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{ OP(1, 1, 1, OP_CONV), 4, 0114, 52 },
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{ OP(2, 1, 1, OP_CONV), 8, 0124, 56 },
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{ OP(2, 1, 1, OP_CONV), 16, 0134, 60 },
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{ OP(1, 1, 1, OP_CONV), 24, 0144, 64 },
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{ OP(1, 1, 1, OP_CONV), 28, 0154, 68 },
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{ OP(2, 1, 1, OP_CONV), 32, 0164, 72 },
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{ OP(2, 1, 1, OP_CONV), 40, 0174, 76 },
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{ OP(1, 1, 1, OP_JUMP_A), -14, 0, 0 },
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};
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static dstatement_t uint_conv_3a_statements[] = {
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{ OP(1, 1, 1, OP_CONV), 0, 0204, 48 },
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{ OP(1, 1, 1, OP_CONV), 3, 0004, 51 },
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{ OP(1, 1, 1, OP_CONV), 4, 0214, 52 },
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{ OP(1, 1, 1, OP_CONV), 7, 0014, 55 },
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{ OP(2, 1, 1, OP_CONV), 8, 0224, 56 },
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{ OP(2, 1, 1, OP_CONV), 14, 0024, 59 },
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{ OP(2, 1, 1, OP_CONV), 16, 0234, 60 },
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{ OP(2, 1, 1, OP_CONV), 22, 0034, 63 },
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{ OP(1, 1, 1, OP_CONV), 24, 0244, 64 },
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{ OP(1, 1, 1, OP_CONV), 27, 0044, 67 },
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{ OP(1, 1, 1, OP_CONV), 28, 0254, 68 },
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{ OP(1, 1, 1, OP_CONV), 31, 0054, 71 },
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{ OP(2, 1, 1, OP_CONV), 32, 0264, 72 },
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{ OP(2, 1, 1, OP_CONV), 38, 0064, 75 },
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{ OP(2, 1, 1, OP_CONV), 40, 0274, 76 },
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{ OP(2, 1, 1, OP_CONV), 46, 0074, 79 },
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};
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static dstatement_t uint_conv_3b_statements[] = {
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{ OP(1, 1, 1, OP_CONV), 0, 0004, 48 },
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{ OP(1, 1, 1, OP_CONV), 1, 0204, 49 },
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{ OP(1, 1, 1, OP_CONV), 4, 0014, 52 },
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{ OP(1, 1, 1, OP_CONV), 5, 0214, 53 },
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{ OP(2, 1, 1, OP_CONV), 8, 0024, 56 },
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{ OP(2, 1, 1, OP_CONV), 10, 0224, 57 },
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{ OP(2, 1, 1, OP_CONV), 16, 0034, 60 },
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{ OP(2, 1, 1, OP_CONV), 18, 0234, 61 },
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{ OP(1, 1, 1, OP_CONV), 24, 0044, 64 },
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{ OP(1, 1, 1, OP_CONV), 25, 0244, 65 },
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{ OP(1, 1, 1, OP_CONV), 28, 0054, 68 },
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{ OP(1, 1, 1, OP_CONV), 29, 0254, 69 },
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{ OP(2, 1, 1, OP_CONV), 32, 0064, 72 },
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{ OP(2, 1, 1, OP_CONV), 34, 0264, 73 },
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{ OP(2, 1, 1, OP_CONV), 40, 0074, 76 },
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{ OP(2, 1, 1, OP_CONV), 42, 0274, 77 },
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};
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static dstatement_t uint_conv_4_statements[] = {
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{ OP(1, 1, 1, OP_CONV), 0, 0304, 48 },
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{ OP(1, 1, 1, OP_CONV), 4, 0314, 52 },
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{ OP(2, 1, 1, OP_CONV), 8, 0324, 56 },
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{ OP(2, 1, 1, OP_CONV), 16, 0334, 60 },
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{ OP(1, 1, 1, OP_CONV), 24, 0344, 64 },
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{ OP(1, 1, 1, OP_CONV), 28, 0354, 68 },
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{ OP(2, 1, 1, OP_CONV), 32, 0364, 72 },
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{ OP(2, 1, 1, OP_CONV), 40, 0374, 76 },
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};
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test_t tests[] = {
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{
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.desc = "uint conv 1",
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.extra_globals = 4 * 1,
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.num_globals = num_globals(uint_conv_init,uint_conv_expect),
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.num_statements = num_statements (uint_conv_1_statements),
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.statements = uint_conv_1_statements,
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.init_globals = (pr_int_t *) uint_conv_init,
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.expect_globals = (pr_int_t *) uint_conv_expect,
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},
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{
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.desc = "uint conv 2",
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.extra_globals = 4 * 1,
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.num_globals = num_globals(uint_conv_init,uint_conv_expect),
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.num_statements = num_statements (uint_conv_2_statements),
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.statements = uint_conv_2_statements,
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.init_globals = (pr_int_t *) uint_conv_init,
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.expect_globals = (pr_int_t *) uint_conv_expect,
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},
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{
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.desc = "uint conv 3a",
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.extra_globals = 4 * 1,
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.num_globals = num_globals(uint_conv_init,uint_conv_expect),
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.num_statements = num_statements (uint_conv_3a_statements),
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.statements = uint_conv_3a_statements,
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.init_globals = (pr_int_t *) uint_conv_init,
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.expect_globals = (pr_int_t *) uint_conv_expect,
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},
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{
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.desc = "uint conv 3b",
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.extra_globals = 4 * 1,
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.num_globals = num_globals(uint_conv_init,uint_conv_expect),
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.num_statements = num_statements (uint_conv_3b_statements),
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.statements = uint_conv_3b_statements,
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.init_globals = (pr_int_t *) uint_conv_init,
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.expect_globals = (pr_int_t *) uint_conv_expect,
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},
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{
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.desc = "uint conv 4",
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.extra_globals = 4 * 1,
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.num_globals = num_globals(uint_conv_init,uint_conv_expect),
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.num_statements = num_statements (uint_conv_4_statements),
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.statements = uint_conv_4_statements,
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.init_globals = (pr_int_t *) uint_conv_init,
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.expect_globals = (pr_int_t *) uint_conv_expect,
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},
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};
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#include "main.c"
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