diff --git a/src/tools/run-make-support/src/assertion_helpers.rs b/src/tools/run-make-support/src/assertion_helpers.rs index 4b5b349431db9..4bcb75d5f0b83 100644 --- a/src/tools/run-make-support/src/assertion_helpers.rs +++ b/src/tools/run-make-support/src/assertion_helpers.rs @@ -47,6 +47,20 @@ pub fn assert_not_contains, N: AsRef>(haystack: H, needle: N) } } +/// Assert that `haystack` contains `needle` a `count` number of times. +#[track_caller] +pub fn assert_count_is, N: AsRef>(count: usize, haystack: H, needle: N) { + let haystack = haystack.as_ref(); + let needle = needle.as_ref(); + if count != haystack.matches(needle).count() { + eprintln!("=== HAYSTACK ==="); + eprintln!("{}", haystack); + eprintln!("=== NEEDLE ==="); + eprintln!("{}", needle); + panic!("needle did not appear {count} times in haystack"); + } +} + /// Assert that all files in `dir1` exist and have the same content in `dir2` pub fn assert_dirs_are_equal(dir1: impl AsRef, dir2: impl AsRef) { let dir2 = dir2.as_ref(); diff --git a/src/tools/run-make-support/src/lib.rs b/src/tools/run-make-support/src/lib.rs index 085120764b463..d844d823f0780 100644 --- a/src/tools/run-make-support/src/lib.rs +++ b/src/tools/run-make-support/src/lib.rs @@ -84,7 +84,7 @@ pub use path_helpers::{ pub use scoped_run::{run_in_tmpdir, test_while_readonly}; pub use assertion_helpers::{ - assert_contains, assert_dirs_are_equal, assert_equals, assert_not_contains, + assert_contains, assert_count_is, assert_dirs_are_equal, assert_equals, assert_not_contains, }; pub use string::{ diff --git a/src/tools/tidy/src/allowed_run_make_makefiles.txt b/src/tools/tidy/src/allowed_run_make_makefiles.txt index a84b89ff4a113..160d20fb2b07e 100644 --- a/src/tools/tidy/src/allowed_run_make_makefiles.txt +++ b/src/tools/tidy/src/allowed_run_make_makefiles.txt @@ -29,7 +29,6 @@ run-make/link-cfg/Makefile run-make/long-linker-command-lines-cmd-exe/Makefile run-make/long-linker-command-lines/Makefile run-make/macos-deployment-target/Makefile -run-make/min-global-align/Makefile run-make/native-link-modifier-bundle/Makefile run-make/native-link-modifier-whole-archive/Makefile run-make/no-alloc-shim/Makefile diff --git a/tests/run-make/min-global-align/Makefile b/tests/run-make/min-global-align/Makefile deleted file mode 100644 index 82f38749e0092..0000000000000 --- a/tests/run-make/min-global-align/Makefile +++ /dev/null @@ -1,22 +0,0 @@ -include ../tools.mk - -# only-linux - -# This tests ensure that global variables respect the target minimum alignment. -# The three bools `STATIC_BOOL`, `STATIC_MUT_BOOL`, and `CONST_BOOL` all have -# type-alignment of 1, but some targets require greater global alignment. - -SRC = min_global_align.rs -LL = $(TMPDIR)/min_global_align.ll - -all: -# Most targets are happy with default alignment -- take i686 for example. -ifeq ($(filter x86,$(LLVM_COMPONENTS)),x86) - $(RUSTC) --target=i686-unknown-linux-gnu --emit=llvm-ir $(SRC) - [ "$$(grep -c 'align 1' "$(LL)")" -eq "3" ] -endif -# SystemZ requires even alignment for PC-relative addressing. -ifeq ($(filter systemz,$(LLVM_COMPONENTS)),systemz) - $(RUSTC) --target=s390x-unknown-linux-gnu --emit=llvm-ir $(SRC) - [ "$$(grep -c 'align 2' "$(LL)")" -eq "3" ] -endif diff --git a/tests/run-make/min-global-align/rmake.rs b/tests/run-make/min-global-align/rmake.rs new file mode 100644 index 0000000000000..0db82b8340d42 --- /dev/null +++ b/tests/run-make/min-global-align/rmake.rs @@ -0,0 +1,27 @@ +// This tests ensure that global variables respect the target minimum alignment. +// The three bools `STATIC_BOOL`, `STATIC_MUT_BOOL`, and `CONST_BOOL` all have +// type-alignment of 1, but some targets require greater global alignment. +// See /~https://github.com/rust-lang/rust/pull/44440 + +//@ only-linux +// Reason: this test is target-independent, considering compilation is targeted +// towards linux architectures only. + +use run_make_support::{assert_count_is, llvm_components_contain, rfs, rustc}; + +fn main() { + // Most targets are happy with default alignment -- take i686 for example. + if llvm_components_contain("x86") { + rustc().target("i686-unknown-linux-gnu").emit("llvm-ir").input("min_global_align.rs").run(); + assert_count_is(3, rfs::read_to_string("min_global_align.ll"), "align 1"); + } + // SystemZ requires even alignment for PC-relative addressing. + if llvm_components_contain("systemz") { + rustc() + .target("s390x-unknown-linux-gnu") + .emit("llvm-ir") + .input("min_global_align.rs") + .run(); + assert_count_is(3, rfs::read_to_string("min_global_align.ll"), "align 2"); + } +}