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[Yul] Implements a pass to rewrite for-loop's pre block into the parent's Block.

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This commit is contained in:
Christian Parpart
2018-11-16 13:15:41 +01:00
committed by Christian Parpart
parent 460c58fbd1
commit f705a45d43
8 changed files with 159 additions and 1 deletions
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test/libyul/yulOptimizerTests/forLoopInitRewriter/complex_pre.yul
+23
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@@ -0,0 +1,23 @@
{
let random := 42
for { let a := 1
let b := 1 } iszero(eq(a, 10)) { a := add(a, b) } {
a := add(a, 1)
}
}
// ----
// forLoopInitRewriter
// {
// let random := 42
// let a := 1
// let b := 1
// for {
// }
// iszero(eq(a, 10))
// {
// a := add(a, b)
// }
// {
// a := add(a, 1)
// }
// }
test/libyul/yulOptimizerTests/forLoopInitRewriter/empty_pre.yul
+20
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@@ -0,0 +1,20 @@
{
let a := 1
for {} iszero(eq(a, 10)) { a := add(a, 1) } {
a := add(a, 1)
}
}
// ----
// forLoopInitRewriter
// {
// let a := 1
// for {
// }
// iszero(eq(a, 10))
// {
// a := add(a, 1)
// }
// {
// a := add(a, 1)
// }
// }
test/libyul/yulOptimizerTests/forLoopInitRewriter/simple.yul
+21
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@@ -0,0 +1,21 @@
{
let random := 42
for { let a := 1 } iszero(eq(a, 10)) { a := add(a, 1) } {
a := add(a, 1)
}
}
// ----
// forLoopInitRewriter
// {
// let random := 42
// let a := 1
// for {
// }
// iszero(eq(a, 10))
// {
// a := add(a, 1)
// }
// {
// a := add(a, 1)
// }
// }