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authorAlex Crichton <alex@alexcrichton.com>2018-01-16 15:02:31 -0800
committerAlex Crichton <alex@alexcrichton.com>2018-01-23 14:13:47 -0800
commit8bde2acfc7876148ebfe192780434dbb969eded3 (patch)
tree214b953ac0b69b6185e8de690f7c4f8588287f95 /src/test/run-make
parent4e3901d35f6a8652f67111e7272263c9e62ab3e1 (diff)
downloadrust-8bde2acfc7876148ebfe192780434dbb969eded3.tar.gz
rust-8bde2acfc7876148ebfe192780434dbb969eded3.zip
rustc: Add `-C lto=val` option
This commit primarily adds the ability to control what kind of LTO happens when
rustc performs LTO, namely allowing values to be specified to the `-C lto`
option, such as `-C lto=thin` and `-C lto=fat`. (where "fat" is the previous
kind of LTO, throw everything in one giant module)

Along the way this also refactors a number of fields which store information
about whether LTO/ThinLTO are enabled to unify them all into one field through
which everything is dispatched, hopefully removing a number of special cases
throughout.

This is intended to help mitigate #47409 but will require a backport as well,
and this would unfortunately need to be an otherwise insta-stable option.
Diffstat (limited to 'src/test/run-make')
-rw-r--r--src/test/run-make/codegen-options-parsing/Makefile6
1 files changed, 3 insertions, 3 deletions
diff --git a/src/test/run-make/codegen-options-parsing/Makefile b/src/test/run-make/codegen-options-parsing/Makefile
index 81e06043c87..fda96a8b1fb 100644
--- a/src/test/run-make/codegen-options-parsing/Makefile
+++ b/src/test/run-make/codegen-options-parsing/Makefile
@@ -16,11 +16,11 @@ all:
 	$(RUSTC) -C extra-filename=foo dummy.rs 2>&1
 	#Option taking no argument
 	$(RUSTC) -C lto= dummy.rs 2>&1 | \
-		$(CGREP) 'codegen option `lto` takes no value'
+		$(CGREP) 'codegen option `lto` - one of `thin`, `fat`, or'
 	$(RUSTC) -C lto=1 dummy.rs 2>&1 | \
-		$(CGREP) 'codegen option `lto` takes no value'
+		$(CGREP) 'codegen option `lto` - one of `thin`, `fat`, or'
 	$(RUSTC) -C lto=foo dummy.rs 2>&1 | \
-		$(CGREP) 'codegen option `lto` takes no value'
+		$(CGREP) 'codegen option `lto` - one of `thin`, `fat`, or'
 	$(RUSTC) -C lto dummy.rs
 
 	# Should not link dead code...