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| author | Albert Larsan <74931857+albertlarsan68@users.noreply.github.com> | 2023-01-05 09:13:28 +0100 |
|---|---|---|
| committer | Albert Larsan <74931857+albertlarsan68@users.noreply.github.com> | 2023-01-11 09:32:08 +0000 |
| commit | cf2dff2b1e3fa55fa5415d524200070d0d7aacfe (patch) | |
| tree | 40a88d9a46aaf3e8870676eb2538378b75a263eb /src/test/codegen/mem-replace-direct-memcpy.rs | |
| parent | ca855e6e42787ecd062d81d53336fe6788ef51a9 (diff) | |
| download | rust-cf2dff2b1e3fa55fa5415d524200070d0d7aacfe.tar.gz rust-cf2dff2b1e3fa55fa5415d524200070d0d7aacfe.zip | |
Move /src/test to /tests
Diffstat (limited to 'src/test/codegen/mem-replace-direct-memcpy.rs')
| -rw-r--r-- | src/test/codegen/mem-replace-direct-memcpy.rs | 24 |
1 files changed, 0 insertions, 24 deletions
diff --git a/src/test/codegen/mem-replace-direct-memcpy.rs b/src/test/codegen/mem-replace-direct-memcpy.rs deleted file mode 100644 index e8bbf0e1bbd..00000000000 --- a/src/test/codegen/mem-replace-direct-memcpy.rs +++ /dev/null @@ -1,24 +0,0 @@ -// This test ensures that `mem::replace::<T>` only ever calls `@llvm.memcpy` -// with `size_of::<T>()` as the size, and never goes through any wrapper that -// may e.g. multiply `size_of::<T>()` with a variable "count" (which is only -// known to be `1` after inlining). - -// compile-flags: -C no-prepopulate-passes -Zinline-mir=no -// ignore-debug: the debug assertions get in the way - -#![crate_type = "lib"] - -pub fn replace_byte(dst: &mut u8, src: u8) -> u8 { - std::mem::replace(dst, src) -} - -// NOTE(eddyb) the `CHECK-NOT`s ensure that the only calls of `@llvm.memcpy` in -// the entire output, are the two direct calls we want, from `ptr::replace`. - -// CHECK-NOT: call void @llvm.memcpy -// CHECK: ; core::mem::replace -// CHECK-NOT: call void @llvm.memcpy -// CHECK: call void @llvm.memcpy.{{.+}}({{i8\*|ptr}} align 1 %{{.*}}, {{i8\*|ptr}} align 1 %{{.*}}, i{{.*}} 1, i1 false) -// CHECK-NOT: call void @llvm.memcpy -// CHECK: call void @llvm.memcpy.{{.+}}({{i8\*|ptr}} align 1 %{{.*}}, {{i8\*|ptr}} align 1 %{{.*}}, i{{.*}} 1, i1 false) -// CHECK-NOT: call void @llvm.memcpy |