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| author | Andrew Kelley <andrew@ziglang.org> | 2019-05-30 23:25:37 -0400 |
|---|---|---|
| committer | Andrew Kelley <andrew@ziglang.org> | 2019-05-30 23:25:37 -0400 |
| commit | 95d9835898052835ce767be2fcc0e4344a704b96 (patch) | |
| tree | 6ae7dde24db25b797aac4e7ec18ddca4d1c6c713 /src/ir_print.cpp | |
| parent | a4aca787229e3b0b3dc992b747cc72a561c2078c (diff) | |
| download | zig-95d9835898052835ce767be2fcc0e4344a704b96.tar.gz zig-95d9835898052835ce767be2fcc0e4344a704b96.zip | |
no-copy semantics for nested if
```zig
export fn entry() void {
var c = true;
var x = if (c) u8(4) else if (c) u16(100) else u32(10);
}
```
```llvm
define void @entry() #2 !dbg !35 {
Entry:
%c = alloca i1, align 1
%x = alloca i32, align 4
store i1 true, i1* %c, align 1, !dbg !44
call void @llvm.dbg.declare(metadata i1* %c, metadata !39, metadata !DIExpression()), !dbg !45
%0 = load i1, i1* %c, align 1, !dbg !46
br i1 %0, label %Then2, label %Else, !dbg !46
Else: ; preds = %Entry
%1 = load i1, i1* %c, align 1, !dbg !47
br i1 %1, label %Then, label %Else1, !dbg !47
Then: ; preds = %Else
br label %EndIf, !dbg !48
Else1: ; preds = %Else
br label %EndIf, !dbg !48
Then2: ; preds = %Entry
br label %EndIf3, !dbg !49
EndIf: ; preds = %Else1, %Then
%2 = phi i32 [ 100, %Then ], [ 10, %Else1 ], !dbg !48
br label %EndIf3, !dbg !49
EndIf3: ; preds = %EndIf, %Then2
%3 = phi i32 [ 4, %Then2 ], [ %2, %EndIf ], !dbg !49
store i32 %3, i32* %x, align 4, !dbg !49
call void @llvm.dbg.declare(metadata i32* %x, metadata !42, metadata !DIExpression()), !dbg !50
ret void, !dbg !51
}
```
Diffstat (limited to 'src/ir_print.cpp')
0 files changed, 0 insertions, 0 deletions