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authorAlex Crichton <alex@alexcrichton.com>2018-08-23 11:03:22 -0700
committerAlex Crichton <alex@alexcrichton.com>2018-08-28 13:32:11 -0700
commit1fd45a13dee17701fc0aeaa847c1919d485d09fd (patch)
tree8ca2cb2677b213994b44f037798db56d0c867d15 /src/test
parent7061b2775782bb48c0a70d3c79ec711134396687 (diff)
downloadrust-1fd45a13dee17701fc0aeaa847c1919d485d09fd.tar.gz
rust-1fd45a13dee17701fc0aeaa847c1919d485d09fd.zip
Fix warnings about the `native` target-cpu
This fixes a regression from #53031 where specifying `-C target-cpu=native` is
printing a lot of warnings from LLVM about `native` being an unknown CPU. It
turns out that `native` is indeed an unknown CPU and we have to perform a
mapping to an actual CPU name, but this mapping is only performed in one
location rather than all locations we inform LLVM about the target CPU.

This commit centralizes the mapping of `native` to LLVM's value of the native
CPU, ensuring that all locations we inform LLVM about the `target-cpu` it's
never `native`.

Closes #53322
Diffstat (limited to 'src/test')
-rw-r--r--src/test/run-make-fulldeps/target-cpu-native/Makefile19
1 files changed, 17 insertions, 2 deletions
diff --git a/src/test/run-make-fulldeps/target-cpu-native/Makefile b/src/test/run-make-fulldeps/target-cpu-native/Makefile
index 0c9d93ecb2a..fee41461612 100644
--- a/src/test/run-make-fulldeps/target-cpu-native/Makefile
+++ b/src/test/run-make-fulldeps/target-cpu-native/Makefile
@@ -1,5 +1,20 @@
 -include ../tools.mk
 
-all:
-	$(RUSTC) foo.rs -C target-cpu=native
+# I *really* don't want to deal with a cross-platform way to compare file sizes,
+# tests in `make` sort of are awful
+ifeq ($(TARGET),x86_64-unknown-linux-gnu)
+all: $(TMPDIR)/out.log
+	# Make sure no warnings about "unknown CPU `native`" were emitted
+	if [ "$$(wc -c $(TMPDIR)/out.log | cut -d' ' -f 1)" = "0" ]; then \
+	  echo no warnings generated; \
+	else \
+	  exit 1; \
+	fi
+else
+all: $(TMPDIR)/out.log
+endif
+
+
+$(TMPDIR)/out.log:
+	$(RUSTC) foo.rs -C target-cpu=native 2>&1 | tee $(TMPDIR)/out.log
 	$(call RUN,foo)