ir/tests/007.irt
2022-05-25 09:33:47 +03:00

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--TEST--
007: GCM for simple loop (Figure 7 from "Global Code Motion Global Value Numbering" by Cliff Click)
--ARGS--
--dump-cfg-map --save --dump-after-gcm
--CODE--
{
uintptr_t c_1 = 0;
bool c_2 = 0;
bool c_3 = 1;
int32_t c_4 = 10;
int32_t c_5 = 2;
int32_t c_6 = 1;
int32_t c_7 = 0;
l_1 = START(l_16);
int32_t d_2 = PARAM(l_1, "x", 0);
l_3 = END(l_1);
l_4 = LOOP_BEGIN(l_3, l_12);
int32_t d_5 = PHI(l_4, c_7, d_7);
int32_t d_6 = ADD(d_2, c_6);
int32_t d_7 = ADD(d_6, d_5);
int32_t d_8 = MUL(d_7, c_5);
bool d_9 = LT(d_7, c_4);
l_10 = IF(l_4, d_9);
l_11 = IF_TRUE(l_10);
l_12 = LOOP_END(l_11, l_4);
l_13 = IF_FALSE(l_10);
l_14 = LOOP_EXIT(l_13, l_4);
l_15 = BEGIN(l_14);
l_16 = RETURN(l_15, d_8);
}
--EXPECT--
{
uintptr_t c_1 = 0;
bool c_2 = 0;
bool c_3 = 1;
int32_t c_4 = 10;
int32_t c_5 = 2;
int32_t c_6 = 1;
int32_t c_7 = 0;
l_1 = START(l_16);
int32_t d_2 = PARAM(l_1, "x", 0);
l_3 = END(l_1);
l_4 = LOOP_BEGIN(l_3, l_12);
int32_t d_5 = PHI(l_4, c_7, d_7);
int32_t d_6 = ADD(d_2, c_6);
int32_t d_7 = ADD(d_6, d_5);
int32_t d_8 = ADD(d_7, d_7);
bool d_9 = LT(d_7, c_4);
l_10 = IF(l_4, d_9);
l_11 = IF_TRUE(l_10);
l_12 = LOOP_END(l_11, l_4);
l_13 = IF_FALSE(l_10);
l_14 = LOOP_EXIT(l_13, l_4);
l_15 = BEGIN(l_14);
l_16 = RETURN(l_15, d_8);
}
{ # CFG map (insn -> bb)
1 -> 1
2 -> 1
3 -> 1
4 -> 2
5 -> 2
6 -> 1
7 -> 2
8 -> 5
9 -> 2
10 -> 2
11 -> 3
12 -> 3
13 -> 4
14 -> 4
15 -> 5
16 -> 5
}