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47 lines
958 B
Plaintext
47 lines
958 B
Plaintext
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--TEST--
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DESSA 003
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--ARGS--
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--emit-llvm
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--CODE--
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# Figure 8 (swap problem) from "Translating Out of Static Single Assignment Form" by Sreedhar
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{
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uintptr_t c_1 = 0;
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bool c_2 = 0;
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bool c_3 = 1;
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int32_t c_4 = 1;
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int32_t c_12 = 12;
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l_1 = START(l_11);
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int32_t x0 = PARAM(l_1, "x", 0);
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int32_t y1 = PARAM(l_1, "y", 1);
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int32_t cond = PARAM(l_1, "z", 2);
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int32_t x1 = DIV(x0, c_12);
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l_3 = END(l_1);
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l_4 = LOOP_BEGIN(l_3, l_9);
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int32_t x2 = PHI(l_4, x1, x3);
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int32_t y2 = PHI(l_4, y1, y3);
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int32_t z = COPY(x2);
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int32_t x3 = COPY(y2);
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int32_t y3 = COPY(z);
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l_7 = IF(l_4, cond);
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l_8 = IF_TRUE(l_7);
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l_9 = LOOP_END(l_8);
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l_10 = IF_FALSE(l_7);
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l_11 = RETURN(l_10, z);
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}
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--EXPECT--
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define i32 @test(i32 %d2, i32 %d3, i32 %d4)
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{
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l1:
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%d5 = sdiv i32 %d2, 12
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br label %l2
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l2:
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%d8 = phi i32 [%d5, %l1], [%d9, %l3]
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%d9 = phi i32 [%d3, %l1], [%d8, %l3]
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%t10 = icmp ne i32 %d4, 0
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br i1 %t10, label %l3, label %l4
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l3:
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br label %l2
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l4:
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ret i32 %d8
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}
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