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bors 1c2c6b6700 Auto merge of #84582 - richkadel:issue-84561, r=tmandry 
Vastly improves coverage spans for macros

Fixes: #84561

This resolves problems where macros like `trace!(...)` would show zero coverage if tracing was disabled, and `assert_eq!(...)` would show zero coverage if the assertion did not fail, because only one coverage span was generated, for the branch.

This PR started with an idea that I could just drop branching blocks with same span as expanded macro. (See the fixed issue for more details.)

That did help, but it didn't resolve everything.

I also needed to add a span specifically for the macro name (plus `!`) to ensure the macro gets coverage even if it's internal expansion adds conditional branching blocks that are retained, and would otherwise drop the outer span. Now that outer span is _only_ the `(argument, list)`, which can safely be dropped now), because the macro name has its own span.

While testing, I also noticed the spanview debug output can cause an ICE on a function with no body. The
workaround for this is included in this PR (separate commit).

r? `@tmandry`
cc? `@wesleywiser`
2021-05-01 07:48:24 +00:00
..
a-b-a-linker-guard test: force legacy mangling for run-make-fulldeps/a-b-a-linker-guard. 2019-05-31 18:24:54 +03:00
alloc-extern-crates mv std libs to library/ 2020-07-27 19:51:13 -05:00
allow-non-lint-warnings-cmdline Remove licenses 2018-12-25 21:08:33 -07:00
allow-warnings-cmdline-stability Require issue = "none" over issue = "0" in unstable attributes 2019-12-21 13:16:18 +02:00
archive-duplicate-names Update tests for extern block linting 2021-01-13 07:49:16 -05:00
arguments-non-c-like-enum test: address comments and pacify the merciless tidy. 2020-02-08 06:52:09 +02:00
atomic-lock-free Remove licenses 2018-12-25 21:08:33 -07:00
bare-outfile Remove licenses 2018-12-25 21:08:33 -07:00
c-dynamic-dylib Update tests for extern block linting 2021-01-13 07:49:16 -05:00
c-dynamic-rlib Update tests for extern block linting 2021-01-13 07:49:16 -05:00
c-link-to-rust-dylib Remove unused ignore-license directives 2020-01-24 00:00:00 +00:00
c-link-to-rust-staticlib Remove unused ignore-license directives 2020-01-24 00:00:00 +00:00
c-link-to-rust-va-list-fn va_args implementation for AAPCS. 2020-06-30 09:58:00 +01:00
c-static-dylib Update tests for extern block linting 2021-01-13 07:49:16 -05:00
c-static-rlib Update tests for extern block linting 2021-01-13 07:49:16 -05:00
c-unwind-abi-catch-lib-panic add integration tests, unwind across FFI boundary 2021-03-09 14:40:33 -05:00
c-unwind-abi-catch-panic add integration tests, unwind across FFI boundary 2021-03-09 14:40:33 -05:00
cat-and-grep-sanity-check rustc: Add a #[wasm_custom_section] attribute 2018-03-22 13:16:38 -07:00
cdylib Update code to account for extern ABI requirement 2021-01-13 07:49:45 -05:00
cdylib-dylib-linkage Update code to account for extern ABI requirement 2021-01-13 07:49:45 -05:00
cdylib-fewer-symbols Update code to account for extern ABI requirement 2021-01-13 07:49:45 -05:00
codegen-options-parsing Remove licenses 2018-12-25 21:08:33 -07:00
compile-stdin rustc: Add a #[wasm_custom_section] attribute 2018-03-22 13:16:38 -07:00
compiler-lookup-paths Update tests for extern block linting 2021-01-13 07:49:16 -05:00
compiler-lookup-paths-2 Remove licenses 2018-12-25 21:08:33 -07:00
compiler-rt-works-on-mingw Update tests for extern block linting 2021-01-13 07:49:16 -05:00
coverage Rebuilt out of date tests and fixed an old bug now exposed 2021-04-30 01:10:48 -07:00
coverage-llvmir Run LLVM coverage instrumentation passes before optimization passes 2021-03-30 02:10:28 +01:00
coverage-reports Rebuilt out of date tests and fixed an old bug now exposed 2021-04-30 01:10:48 -07:00
crate-data-smoke Remove licenses 2018-12-25 21:08:33 -07:00
crate-name-priority Remove licenses 2018-12-25 21:08:33 -07:00
cross-lang-lto bootstrap: Don't add LLVM's bin directory to the PATH for tool invocations. 2019-04-29 14:55:29 +02:00
cross-lang-lto-clang bootstrap: Don't add LLVM's bin directory to the PATH for tool invocations. 2019-04-29 14:55:29 +02:00
cross-lang-lto-pgo-smoketest Stabilize profile-guided optimization. 2019-06-21 09:54:58 +02:00
cross-lang-lto-upstream-rlibs Update code to account for extern ABI requirement 2021-01-13 07:49:45 -05:00
debug-assertions Remove licenses 2018-12-25 21:08:33 -07:00
dep-info use ignore directives for run-make tests 2019-02-11 17:02:06 -05:00
dep-info-doesnt-run-much Remove licenses 2018-12-25 21:08:33 -07:00
dep-info-spaces use ignore directives for run-make tests 2019-02-11 17:02:06 -05:00
duplicate-output-flavors Remove licenses 2018-12-25 21:08:33 -07:00
dylib-chain Remove licenses 2018-12-25 21:08:33 -07:00
emit Remove licenses 2018-12-25 21:08:33 -07:00
emit-stack-sizes Update the minimum external LLVM to 7 2019-12-02 11:36:21 -08:00
error-found-staticlib-instead-crate Remove licenses 2018-12-25 21:08:33 -07:00
error-writing-dependencies Remove licenses 2018-12-25 21:08:33 -07:00
exit-code intra_doc_resolution_failures -> broken_intra_doc_links 2020-07-30 10:38:55 -07:00
extern-diff-internal-name Remove licenses 2018-12-25 21:08:33 -07:00
extern-flag-disambiguates Remove licenses 2018-12-25 21:08:33 -07:00
extern-flag-fun Add test for --extern alloc=librustc.rlib 2019-11-07 06:43:07 -08:00
extern-flag-pathless Add more --extern tests. 2019-11-07 05:51:17 -08:00
extern-flag-rename-transitive Remove licenses 2018-12-25 21:08:33 -07:00
extern-fn-generic Update tests for extern block linting 2021-01-13 07:49:16 -05:00
extern-fn-mangle Update tests for extern block linting 2021-01-13 07:49:16 -05:00
extern-fn-reachable Remove support for self-opening 2020-04-25 10:55:20 -04:00
extern-fn-struct-passing-abi Update tests for extern block linting 2021-01-13 07:49:16 -05:00
extern-fn-with-extern-types Update tests for extern block linting 2021-01-13 07:49:16 -05:00
extern-fn-with-packed-struct Update tests for extern block linting 2021-01-13 07:49:16 -05:00
extern-fn-with-union Update tests for extern block linting 2021-01-13 07:49:16 -05:00
extern-multiple-copies Remove licenses 2018-12-25 21:08:33 -07:00
extern-multiple-copies2 Remove licenses 2018-12-25 21:08:33 -07:00
extern-overrides-distribution Remove licenses 2018-12-25 21:08:33 -07:00
extra-filename-with-temp-outputs Remove licenses 2018-12-25 21:08:33 -07:00
foreign-exceptions Abort when catch_unwind catches a foreign exception 2020-08-27 21:08:30 +01:00
fpic use ignore directives for run-make tests 2019-02-11 17:02:06 -05:00
glibc-staticlib-args Update code to account for extern ABI requirement 2021-01-13 07:49:45 -05:00
hir-tree Remove licenses 2018-12-25 21:08:33 -07:00
hotplug_codegen_backend Fix hotplug_codegen_backend test 2020-10-10 19:00:51 +02:00
include_bytes_deps Fix various tests to run on windows-gnu 2020-07-17 20:45:29 +02:00
incr-add-rust-src-component Add integration test for --remap-pathh-prefix 2021-04-29 12:53:59 +00:00
inline-always-many-cgu Revert "Auto merge of #76896 - spastorino:codegen-inline-fns2, r=davidtwco,wesleywiser" 2021-01-11 16:27:59 -03:00
interdependent-c-libraries Update tests for extern block linting 2021-01-13 07:49:16 -05:00
intrinsic-unreachable Fix various tests to run on windows-gnu 2020-07-17 20:45:29 +02:00
invalid-library rustc_metadata: don't let LLVM confuse rmeta blobs for COFF object files. 2019-11-09 02:06:22 +02:00
invalid-staticlib rustc: Add a #[wasm_custom_section] attribute 2018-03-22 13:16:38 -07:00
issue-7349 Remove licenses 2018-12-25 21:08:33 -07:00
issue-11908 Remove licenses 2018-12-25 21:08:33 -07:00
issue-14500 Update code to account for extern ABI requirement 2021-01-13 07:49:45 -05:00
issue-14698 Remove licenses 2018-12-25 21:08:33 -07:00
issue-15460 Update tests for extern block linting 2021-01-13 07:49:16 -05:00
issue-18943 Remove double trailing newlines 2019-04-22 16:57:01 +01:00
issue-19371 Fix src/test/run-make-fulldeps/issue-19371 2021-03-15 21:16:39 +08:00
issue-20626 Remove licenses 2018-12-25 21:08:33 -07:00
issue-22131 Remove licenses 2018-12-25 21:08:33 -07:00
issue-24445 use ignore directives for run-make tests 2019-02-11 17:02:06 -05:00
issue-25581 Update tests for extern block linting 2021-01-13 07:49:16 -05:00
issue-26006 use ignore directives for run-make tests 2019-02-11 17:02:06 -05:00
issue-26092 Remove licenses 2018-12-25 21:08:33 -07:00
issue-28595 Update tests for extern block linting 2021-01-13 07:49:16 -05:00
issue-28766 Remove licenses 2018-12-25 21:08:33 -07:00
issue-30063 Remove licenses 2018-12-25 21:08:33 -07:00
issue-33329 Remove licenses 2018-12-25 21:08:33 -07:00
issue-35164 Remove licenses 2018-12-25 21:08:33 -07:00
issue-37839 Remove some ignore-stage1 annotations. 2020-07-02 22:29:38 -07:00
issue-37893 Remove some ignore-stage1 annotations. 2020-07-02 22:29:38 -07:00
issue-38237 Remove licenses 2018-12-25 21:08:33 -07:00
issue-40535 Remove licenses 2018-12-25 21:08:33 -07:00
issue-46239 Remove licenses 2018-12-25 21:08:33 -07:00
issue-51671 Fix various tests to run on windows-gnu 2020-07-17 20:45:29 +02:00
issue-53964 Remove licenses 2018-12-25 21:08:33 -07:00
issue-64153 Ignore issue-64153 run-make test on Windows since supporting a Windows version is not worth the trouble. 2019-10-28 17:07:25 +01:00
issue-68794-textrel-on-minimal-lib add regression test for issue #68794 2020-02-14 14:38:31 +01:00
issue-69368 Abort when catch_unwind catches a foreign exception 2020-08-27 21:08:30 +01:00
issue-83045 Fix #83045 by moving some crate loading verification code to a better place. 2021-03-26 09:59:10 +01:00
issue64319 Add regression test for #64319 back in. 2020-01-20 12:00:43 +01:00
issues-41478-43796 Remove licenses 2018-12-25 21:08:33 -07:00
libs-and-bins Remove licenses 2018-12-25 21:08:33 -07:00
libs-through-symlinks Rename to RUSTC_LOG 2019-04-30 17:27:53 +09:00
libtest-json libtest: Make sed arguments compatible with apple 2020-11-29 02:14:49 +01:00
link-arg Remove licenses 2018-12-25 21:08:33 -07:00
link-args-order Remove attribute #[link_args] 2021-04-03 21:25:53 +03:00
link-cfg Update tests for extern block linting 2021-01-13 07:49:16 -05:00
link-path-order Update tests for extern block linting 2021-01-13 07:49:16 -05:00
linkage-attr-on-static Update tests for extern block linting 2021-01-13 07:49:16 -05:00
long-linker-command-lines Update tests for extern block linting 2021-01-13 07:49:16 -05:00
long-linker-command-lines-cmd-exe Remove licenses 2018-12-25 21:08:33 -07:00
longjmp-across-rust Update tests for extern block linting 2021-01-13 07:49:16 -05:00
ls-metadata Remove licenses 2018-12-25 21:08:33 -07:00
lto-dylib-dep Remove leading newlines 2019-04-22 17:01:33 +01:00
lto-empty rustc: Handle modules in "fat" LTO more robustly 2019-08-27 13:51:14 -07:00
lto-no-link-whole-rlib Update tests for extern block linting 2021-01-13 07:49:16 -05:00
lto-readonly-lib Remove licenses 2018-12-25 21:08:33 -07:00
lto-smoke Remove licenses 2018-12-25 21:08:33 -07:00
lto-smoke-c Remove unused ignore-license directives 2020-01-24 00:00:00 +00:00
manual-crate-name Remove licenses 2018-12-25 21:08:33 -07:00
manual-link Update tests for extern block linting 2021-01-13 07:49:16 -05:00
many-crates-but-no-match Remove compile-fail test suite 2020-12-29 23:39:56 +03:00
metadata-flag-frobs-symbols Remove licenses 2018-12-25 21:08:33 -07:00
min-global-align Assert that locals have storage when used 2020-10-31 21:06:29 +01:00
mingw-export-call-convention Add test for #50176 2020-07-29 14:19:58 +02:00
mismatching-target-triples Remove licenses 2018-12-25 21:08:33 -07:00
missing-crate-dependency Remove licenses 2018-12-25 21:08:33 -07:00
mixing-deps Remove licenses 2018-12-25 21:08:33 -07:00
mixing-formats Remove licenses 2018-12-25 21:08:33 -07:00
mixing-libs Remove licenses 2018-12-25 21:08:33 -07:00
msvc-opt-minsize Remove licenses 2018-12-25 21:08:33 -07:00
multiple-emits Remove licenses 2018-12-25 21:08:33 -07:00
no-builtins-lto Remove licenses 2018-12-25 21:08:33 -07:00
no-duplicate-libs Update tests for extern block linting 2021-01-13 07:49:16 -05:00
no-intermediate-extras Remove licenses 2018-12-25 21:08:33 -07:00
obey-crate-type-flag Remove licenses 2018-12-25 21:08:33 -07:00
output-filename-conflicts-with-directory Remove licenses 2018-12-25 21:08:33 -07:00
output-filename-overwrites-input Remove licenses 2018-12-25 21:08:33 -07:00
output-type-permutations Fix staticlib name for *-pc-windows-gnu targets 2020-04-09 00:33:05 +02:00
output-with-hyphens Remove licenses 2018-12-25 21:08:33 -07:00
override-aliased-flags Move run-make test to run-make-fulldeps 2019-05-05 10:45:10 +01:00
panic-impl-transitive Remove licenses 2018-12-25 21:08:33 -07:00
pass-non-c-like-enum-to-c test: use all: $(call NATIVE_STATICLIB,test) to build a C lib. 2020-02-08 13:40:50 +02:00
pgo-branch-weights Ignore failing PGO/coverage tests on MinGW 2020-09-05 12:31:16 +02:00
pgo-gen Ignore failing PGO/coverage tests on MinGW 2020-09-05 12:31:16 +02:00
pgo-gen-lto Ignore failing PGO/coverage tests on MinGW 2020-09-05 12:31:16 +02:00
pgo-gen-no-imp-symbols Stabilize profile-guided optimization. 2019-06-21 09:54:58 +02:00
pgo-indirect-call-promotion Ignore failing PGO/coverage tests on MinGW 2020-09-05 12:31:16 +02:00
pgo-use Explicitly disable preinline during pgo-use test 2021-03-03 20:48:37 +01:00
prefer-dylib Remove licenses 2018-12-25 21:08:33 -07:00
prefer-rlib Remove licenses 2018-12-25 21:08:33 -07:00
pretty-expanded Update fulldeps tests and clippy 2020-06-03 00:18:57 +03:00
pretty-print-to-file Remove licenses 2018-12-25 21:08:33 -07:00
print-cfg rustc: Add a #[wasm_custom_section] attribute 2018-03-22 13:16:38 -07:00
print-target-list Fix an sh error 2019-05-27 19:40:11 -05:00
print-unversioned-files Update Source Serif to release 4.004 2021-04-05 10:48:08 +02:00
profile Add -Z profile-emit=<path> for Gcov gcda output. 2020-05-27 14:10:40 -04:00
prune-link-args use ignore directives for run-make tests 2019-02-11 17:02:06 -05:00
redundant-libs Fix various tests to run on windows-gnu 2020-07-17 20:45:29 +02:00
relocation-model Remove licenses 2018-12-25 21:08:33 -07:00
relro-levels use ignore directives for run-make tests 2019-02-11 17:02:06 -05:00
reproducible-build Stop test from running on Windows. 2019-08-09 09:24:45 -07:00
reproducible-build-2 Export ZERO_AR_DATE for macos linker invocations 2020-05-26 07:38:43 -07:00
resolve-rename Remove licenses 2018-12-25 21:08:33 -07:00
return-non-c-like-enum test: address comments and pacify the merciless tidy. 2020-02-08 06:52:09 +02:00
return-non-c-like-enum-from-c test: use all: $(call NATIVE_STATICLIB,test) to build a C lib. 2020-02-08 13:40:50 +02:00
rlib-chain Remove licenses 2018-12-25 21:08:33 -07:00
rustdoc-determinism add regression test for #61216 2020-07-03 11:24:05 -04:00
rustdoc-error-lines upgrade rustdoc's pulldown-cmark to 0.4.1 2019-04-22 09:11:26 -04:00
rustdoc-io-error use ignore directives for run-make tests 2019-02-11 17:02:06 -05:00
rustdoc-map-file Add full test for rustdoc map file 2021-02-23 11:13:35 +01:00
rustdoc-output-path Remove licenses 2018-12-25 21:08:33 -07:00
rustdoc-themes Fix Makefile themes check 2019-11-18 18:53:45 +01:00
sanitizer-cdylib-link Update code to account for extern ABI requirement 2021-01-13 07:49:45 -05:00
sanitizer-dylib-link Update code to account for extern ABI requirement 2021-01-13 07:49:45 -05:00
sanitizer-staticlib-link Update code to account for extern ABI requirement 2021-01-13 07:49:45 -05:00
save-analysis Fix run-make test 2020-08-14 17:34:32 +01:00
save-analysis-fail Update tests for extern block linting 2021-01-13 07:49:16 -05:00
save-analysis-rfc2126 Stabilize --extern flag without a path. 2019-11-07 05:51:17 -08:00
separate-link Add a test that rustc compiles and links separately 2020-12-23 12:51:10 +11:00
sepcomp-cci-copies Remove licenses 2018-12-25 21:08:33 -07:00
sepcomp-inlining Remove licenses 2018-12-25 21:08:33 -07:00
sepcomp-separate Remove licenses 2018-12-25 21:08:33 -07:00
share-generics-dylib Add regression test for shared-generics x dylibs (#67276). 2020-01-20 12:00:43 +01:00
simd-ffi expand/resolve: Turn #[derive] into a regular macro attribute 2021-02-07 20:08:45 +03:00
simple-dylib Remove licenses 2018-12-25 21:08:33 -07:00
simple-rlib Remove licenses 2018-12-25 21:08:33 -07:00
split-debuginfo Update LLVM to pull in fixes to llvm-dwp 2021-02-20 15:56:36 +02:00
split-dwarf Support LLVM 12 in rustc 2021-02-28 10:19:44 +01:00
stable-symbol-names test: support both (legacy and v0) choices of mangling. 2019-05-31 18:24:53 +03:00
static-dylib-by-default Update code to account for extern ABI requirement 2021-01-13 07:49:45 -05:00
static-extern-type Do not ICE in codegen given a extern_type static 2019-02-05 21:20:07 +00:00
static-nobundle Update tests for extern block linting 2021-01-13 07:49:16 -05:00
static-unwinding Remove licenses 2018-12-25 21:08:33 -07:00
staticlib-blank-lib Update tests for extern block linting 2021-01-13 07:49:16 -05:00
std-core-cycle Update code to account for extern ABI requirement 2021-01-13 07:49:45 -05:00
stdin-non-utf8 rustc: Add a #[wasm_custom_section] attribute 2018-03-22 13:16:38 -07:00
suspicious-library Remove licenses 2018-12-25 21:08:33 -07:00
symbol-visibility Fix various tests to run on windows-gnu 2020-07-17 20:45:29 +02:00
symbols-include-type-name Remove licenses 2018-12-25 21:08:33 -07:00
symlinked-extern use ignore directives for run-make tests 2019-02-11 17:02:06 -05:00
symlinked-libraries use ignore directives for run-make tests 2019-02-11 17:02:06 -05:00
symlinked-rlib use ignore directives for run-make tests 2019-02-11 17:02:06 -05:00
sysroot-crates-are-unstable Avoid "whitelist" 2020-07-10 07:39:28 -04:00
target-cpu-native use ignore directives for run-make tests 2019-02-11 17:02:06 -05:00
target-specs Update tests for extern block linting 2021-01-13 07:49:16 -05:00
target-without-atomic-cas Split non-CAS atomic support off into target_has_atomic_load_store 2019-10-08 20:34:30 +01:00
test-harness Remove licenses 2018-12-25 21:08:33 -07:00
type-mismatch-same-crate-name Remove compile-fail test suite 2020-12-29 23:39:56 +03:00
use-extern-for-plugins Remove bitrig support from rust 2019-05-13 11:09:06 +02:00
use-suggestions-rust-2018 Remove licenses 2018-12-25 21:08:33 -07:00
used Fix various tests to run on windows-gnu 2020-07-17 20:45:29 +02:00
version rustc: Add a #[wasm_custom_section] attribute 2018-03-22 13:16:38 -07:00
volatile-intrinsics Remove licenses 2018-12-25 21:08:33 -07:00
weird-output-filenames Remove licenses 2018-12-25 21:08:33 -07:00
windows-binary-no-external-deps [windows] Add testcase to make sure executables are self-contained 2020-04-11 21:16:27 +02:00
windows-spawn use ignore directives for run-make tests 2019-02-11 17:02:06 -05:00
windows-subsystem Remove double trailing newlines 2019-04-22 16:57:01 +01:00
tools.mk Disabled SHELL=dash on Windows due to invalid path backslash handling 2021-02-13 00:14:50 -08:00