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| author | Francis Gagné <fragag1@gmail.com> | 2018-03-10 19:04:40 -0500 |
|---|---|---|
| committer | Francis Gagné <fragag1@gmail.com> | 2018-03-26 23:42:30 -0400 |
| commit | d032a4b079e9605bd95919db59c817422e0fdba8 (patch) | |
| tree | 31aec6d21a9c46e9ea54323e5e79897dd705ad7f /src/test/codegen | |
| parent | afa7f5bc8ac79503bb99a20a1dd19365318f504f (diff) | |
| download | rust-d032a4b079e9605bd95919db59c817422e0fdba8.tar.gz rust-d032a4b079e9605bd95919db59c817422e0fdba8.zip | |
Strengthen the repeat-trusted-len test
Simply checking for the presence of `llvm.memset` is too brittle because this instrinsic can be used for seemingly trivial operations, such as zero-initializing a `RawVec`.
Diffstat (limited to 'src/test/codegen')
| -rw-r--r-- | src/test/codegen/repeat-trusted-len.rs | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/test/codegen/repeat-trusted-len.rs b/src/test/codegen/repeat-trusted-len.rs index 43872f15d51..8b3294281e9 100644 --- a/src/test/codegen/repeat-trusted-len.rs +++ b/src/test/codegen/repeat-trusted-len.rs @@ -15,9 +15,14 @@ use std::iter; +// CHECK: @helper([[USIZE:i[0-9]+]] %arg0) +#[no_mangle] +pub fn helper(_: usize) { +} + // CHECK-LABEL: @repeat_take_collect #[no_mangle] pub fn repeat_take_collect() -> Vec<u8> { -// CHECK: call void @llvm.memset.p0i8 +// CHECK: call void @llvm.memset.p0i8.[[USIZE]](i8* {{(nonnull )?}}%{{[0-9]+}}, i8 42, [[USIZE]] 100000, i32 1, i1 false) iter::repeat(42).take(100000).collect() } |