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1 ; RUN: llc < %s | not grep invariant | |
2 | |
3 ; llc currently emits no code or bookkeeping for invariant intrinsic calls | |
4 ; or declarations. | |
5 | |
6 target datalayout = "e-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64
:64:64-p:32:32:32-v128:32:128-n32-S128" | |
7 target triple = "asmjs-unknown-emscripten" | |
8 | |
9 declare void @bar(i8*) | |
10 | |
11 define void @foo() { | |
12 %p = alloca i8 | |
13 %i = call {}* @llvm.invariant.start(i64 1, i8* %p) | |
14 call void @bar(i8* %p) | |
15 call void @llvm.invariant.end({}* %i, i64 1, i8* %p) | |
16 ret void | |
17 } | |
18 | |
19 declare {}* @llvm.invariant.start(i64, i8* nocapture) | |
20 declare void @llvm.invariant.end({}*, i64, i8* nocapture) | |
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