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Basic Block: Fix IR builder library example. (#989)

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This commit is contained in:
Nicolas B. Pierron
2019-09-06 22:27:02 +02:00
committed by Sean Stangl
parent 592f5445dd
commit 1c5711c12b
1 changed files with 12 additions and 5 deletions
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17
cranelift/frontend/src/lib.rs
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@@ -50,10 +50,12 @@
//! jump block1
//! block1:
//! z = z + y;
//! brnz y, block2;
//! brnz y, block3;
//! jump block2
//! block2:
//! z = z - x;
//! return y
//! block2:
//! block3:
//! y = y - x
//! jump block1
//! }
@@ -85,6 +87,7 @@
//! let block0 = builder.create_ebb();
//! let block1 = builder.create_ebb();
//! let block2 = builder.create_ebb();
//! let block3 = builder.create_ebb();
//! let x = Variable::new(0);
//! let y = Variable::new(1);
//! let z = Variable::new(2);
@@ -120,8 +123,12 @@
//! }
//! {
//! let arg = builder.use_var(y);
//! builder.ins().brnz(arg, block2, &[]);
//! builder.ins().brnz(arg, block3, &[]);
//! }
//! builder.ins().jump(block2, &[]);
//!
//! builder.switch_to_block(block2);
//! builder.seal_block(block2);
//! {
//! let arg1 = builder.use_var(z);
//! let arg2 = builder.use_var(x);
@@ -133,8 +140,8 @@
//! builder.ins().return_(&[arg]);
//! }
//!
//! builder.switch_to_block(block2);
//! builder.seal_block(block2);
//! builder.switch_to_block(block3);
//! builder.seal_block(block3);
//!
//! {
//! let arg1 = builder.use_var(y);