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llvm-project/clang/test/Driver/lto.c

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Don't imply -flto with -O4. We now saturate at -O3. llvm-svn: 189149
2013-08-24 05:49:00 +08:00
// -flto causes a switch to llvm-bc object files.
Update tests to use %clang instead of 'clang', and forcibly disable use of ' clang ' or ' clang -cc1 ' or ' clang-cc ' in test lines (by substituting them to garbage). llvm-svn: 91460
2009-12-16 06:01:24 +08:00
// RUN: %clang -ccc-print-phases -c %s -flto 2> %t.log
Driver: Support invoking Clang on .ll or .bc inputs. - We actually pretend that we have two separate types for LLVM assembly/bitcode because we need to use the standard suffixes with LTO ('clang -O4 -c t.c' should generate 't.o'). It is now possible to do something like: $ clang -emit-llvm -S t.c -o t.ll ... assorted other compile flags ... $ clang -c t.ll -o t.o ... assorted other compile flags ... and expect that the output will be almost* identical to: $ clang -c t.c -o t.o ... assorted other compile flags ... because all the target settings (default CPU, target features, etc.) will all be initialized properly by the driver/frontend. *: This isn't perfect yet, because in practice we will end up running the optimization passes twice. It's possible to get something equivalent out with a well placed -mllvm -disable-llvm-optzns, but I'm still thinking about the cleanest way to solve this problem more generally. llvm-svn: 105584
2010-06-08 07:28:45 +08:00
// RUN: grep '2: compiler, {1}, lto-bc' %t.log
Driver: Handle -flto, -O4, and tweak -emit-llvm to match llvm-gcc. - -emit-llvm no longer changes what compilation steps are done. - -emit-llvm and -emit-llvm -S write output files with .o and .s suffixes, respectively. - <rdar://problem/6714125> clang-driver should support -O4 and -flto, like llvm-gcc llvm-svn: 67645
2009-03-25 04:17:30 +08:00
Do no use -emit-llvm for -flto. Tested on multiple OSes. llvm-svn: 188406
2013-08-15 03:45:49 +08:00
// RUN: %clang -ccc-print-phases %s -flto 2> %t.log
Eliminate &&s in tests. - 'for i in $(find . -type f); do sed -e 's#\(RUN:.*[^ ]\) *&& *$#\1#g' $i | FileUpdate $i; done', for the curious. llvm-svn: 86430
2009-11-08 09:45:36 +08:00
// RUN: grep '0: input, ".*lto.c", c' %t.log
// RUN: grep '1: preprocessor, {0}, cpp-output' %t.log
Driver: Support invoking Clang on .ll or .bc inputs. - We actually pretend that we have two separate types for LLVM assembly/bitcode because we need to use the standard suffixes with LTO ('clang -O4 -c t.c' should generate 't.o'). It is now possible to do something like: $ clang -emit-llvm -S t.c -o t.ll ... assorted other compile flags ... $ clang -c t.ll -o t.o ... assorted other compile flags ... and expect that the output will be almost* identical to: $ clang -c t.c -o t.o ... assorted other compile flags ... because all the target settings (default CPU, target features, etc.) will all be initialized properly by the driver/frontend. *: This isn't perfect yet, because in practice we will end up running the optimization passes twice. It's possible to get something equivalent out with a well placed -mllvm -disable-llvm-optzns, but I'm still thinking about the cleanest way to solve this problem more generally. llvm-svn: 105584
2010-06-08 07:28:45 +08:00
// RUN: grep '2: compiler, {1}, lto-bc' %t.log
Eliminate &&s in tests. - 'for i in $(find . -type f); do sed -e 's#\(RUN:.*[^ ]\) *&& *$#\1#g' $i | FileUpdate $i; done', for the curious. llvm-svn: 86430
2009-11-08 09:45:36 +08:00
// RUN: grep '3: linker, {2}, image' %t.log
Driver: Handle -flto, -O4, and tweak -emit-llvm to match llvm-gcc. - -emit-llvm no longer changes what compilation steps are done. - -emit-llvm and -emit-llvm -S write output files with .o and .s suffixes, respectively. - <rdar://problem/6714125> clang-driver should support -O4 and -flto, like llvm-gcc llvm-svn: 67645
2009-03-25 04:17:30 +08:00
// llvm-bc and llvm-ll outputs need to match regular suffixes
// (unfortunately).
Do no use -emit-llvm for -flto. Tested on multiple OSes. llvm-svn: 188406
2013-08-15 03:45:49 +08:00
// RUN: %clang %s -flto -save-temps -### 2> %t.log
Eliminate &&s in tests. - 'for i in $(find . -type f); do sed -e 's#\(RUN:.*[^ ]\) *&& *$#\1#g' $i | FileUpdate $i; done', for the curious. llvm-svn: 86430
2009-11-08 09:45:36 +08:00
// RUN: grep '"-o" ".*lto\.i" "-x" "c" ".*lto\.c"' %t.log
// RUN: grep '"-o" ".*lto\.o" .*".*lto\.i"' %t.log
// RUN: grep '".*a.out" .*".*lto\.o"' %t.log
Driver: Handle -flto, -O4, and tweak -emit-llvm to match llvm-gcc. - -emit-llvm no longer changes what compilation steps are done. - -emit-llvm and -emit-llvm -S write output files with .o and .s suffixes, respectively. - <rdar://problem/6714125> clang-driver should support -O4 and -flto, like llvm-gcc llvm-svn: 67645
2009-03-25 04:17:30 +08:00
Do no use -emit-llvm for -flto. Tested on multiple OSes. llvm-svn: 188406
2013-08-15 03:45:49 +08:00
// RUN: %clang %s -flto -S -### 2> %t.log
Eliminate &&s in tests. - 'for i in $(find . -type f); do sed -e 's#\(RUN:.*[^ ]\) *&& *$#\1#g' $i | FileUpdate $i; done', for the curious. llvm-svn: 86430
2009-11-08 09:45:36 +08:00
// RUN: grep '"-o" ".*lto\.s" "-x" "c" ".*lto\.c"' %t.log
Driver: Handle -flto, -O4, and tweak -emit-llvm to match llvm-gcc. - -emit-llvm no longer changes what compilation steps are done. - -emit-llvm and -emit-llvm -S write output files with .o and .s suffixes, respectively. - <rdar://problem/6714125> clang-driver should support -O4 and -flto, like llvm-gcc llvm-svn: 67645
2009-03-25 04:17:30 +08:00
Produce an error when trying to link with -emit-llvm. llvm-svn: 189193
2013-08-25 22:27:09 +08:00
// RUN: not %clang %s -emit-llvm 2>&1 | FileCheck --check-prefix=LLVM-LINK %s
// LLVM-LINK: -emit-llvm cannot be used when linking