cbuild successfully built this on x86_64-precise-cbuild449-oort1-xcortexa15hfr1.

The build results are available at:
 http://cbuild.validation.linaro.org/build/gcc-linaro-4.7+bzr115051~yvan-roux~merge-from-fsf-4.7-20130205/logs/x86_64-precise-cbuild449-oort1-xcortexa15hfr1

+UNSUPPORTED: gcc.c-torture/compile/pr55921.c  -O0
+UNSUPPORTED: gcc.c-torture/compile/pr55921.c  -O1
+UNSUPPORTED: gcc.c-torture/compile/pr55921.c  -O2
+UNSUPPORTED: gcc.c-torture/compile/pr55921.c  -O2 -flto -fno-use-linker-plugin -flto-partition=none
+UNSUPPORTED: gcc.c-torture/compile/pr55921.c  -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects
+UNSUPPORTED: gcc.c-torture/compile/pr55921.c  -O3 -fomit-frame-pointer
+UNSUPPORTED: gcc.c-torture/compile/pr55921.c  -O3 -g
+UNSUPPORTED: gcc.c-torture/compile/pr55921.c  -Os
+PASS: gcc.c-torture/execute/pr56051.c compilation,  -O0
+PASS: gcc.c-torture/execute/pr56051.c compilation,  -O1
+PASS: gcc.c-torture/execute/pr56051.c compilation,  -O2
+PASS: gcc.c-torture/execute/pr56051.c compilation,  -O2 -flto -fno-use-linker-plugin -flto-partition=none
+PASS: gcc.c-torture/execute/pr56051.c compilation,  -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects
+PASS: gcc.c-torture/execute/pr56051.c compilation,  -O3 -fomit-frame-pointer
+PASS: gcc.c-torture/execute/pr56051.c compilation,  -O3 -g
+PASS: gcc.c-torture/execute/pr56051.c compilation,  -Os
+PASS: gcc.c-torture/execute/pr56051.c execution,  -O0
+PASS: gcc.c-torture/execute/pr56051.c execution,  -O1
+PASS: gcc.c-torture/execute/pr56051.c execution,  -O2
+PASS: gcc.c-torture/execute/pr56051.c execution,  -O2 -flto -fno-use-linker-plugin -flto-partition=none
+PASS: gcc.c-torture/execute/pr56051.c execution,  -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects
+PASS: gcc.c-torture/execute/pr56051.c execution,  -O3 -fomit-frame-pointer
+PASS: gcc.c-torture/execute/pr56051.c execution,  -O3 -g
+PASS: gcc.c-torture/execute/pr56051.c execution,  -Os
-PASS: gcc.dg/di-sync-multithread.c execution test
+FAIL: gcc.dg/di-sync-multithread.c execution test
+PASS: gcc.dg/lto/pr55660 c_lto_pr55660_0.o assemble, -O0 -flto -flto-partition=1to1 -fno-use-linker-plugin
+PASS: gcc.dg/lto/pr55660 c_lto_pr55660_0.o assemble, -O0 -flto -flto-partition=none -fuse-linker-plugin
+PASS: gcc.dg/lto/pr55660 c_lto_pr55660_0.o assemble, -O0 -flto -fuse-linker-plugin -fno-fat-lto-objects
+PASS: gcc.dg/lto/pr55660 c_lto_pr55660_0.o assemble, -O2 -flto -flto-partition=1to1 -fno-use-linker-plugin
+PASS: gcc.dg/lto/pr55660 c_lto_pr55660_0.o assemble, -O2 -flto -flto-partition=none -fuse-linker-plugin -fno-fat-lto-objects
+PASS: gcc.dg/lto/pr55660 c_lto_pr55660_0.o assemble, -O2 -flto -fuse-linker-plugin
+PASS: gcc.dg/lto/pr55660 c_lto_pr55660_0.o-c_lto_pr55660_1.o execute -O0 -flto -flto-partition=1to1 -fno-use-linker-plugin
+PASS: gcc.dg/lto/pr55660 c_lto_pr55660_0.o-c_lto_pr55660_1.o execute -O0 -flto -flto-partition=none -fuse-linker-plugin
+PASS: gcc.dg/lto/pr55660 c_lto_pr55660_0.o-c_lto_pr55660_1.o execute -O0 -flto -fuse-linker-plugin -fno-fat-lto-objects
+PASS: gcc.dg/lto/pr55660 c_lto_pr55660_0.o-c_lto_pr55660_1.o execute -O2 -flto -flto-partition=1to1 -fno-use-linker-plugin
+PASS: gcc.dg/lto/pr55660 c_lto_pr55660_0.o-c_lto_pr55660_1.o execute -O2 -flto -flto-partition=none -fuse-linker-plugin -fno-fat-lto-objects
+PASS: gcc.dg/lto/pr55660 c_lto_pr55660_0.o-c_lto_pr55660_1.o execute -O2 -flto -fuse-linker-plugin
+PASS: gcc.dg/lto/pr55660 c_lto_pr55660_0.o-c_lto_pr55660_1.o link, -O0 -flto -flto-partition=1to1 -fno-use-linker-plugin
+PASS: gcc.dg/lto/pr55660 c_lto_pr55660_0.o-c_lto_pr55660_1.o link, -O0 -flto -flto-partition=none -fuse-linker-plugin
+PASS: gcc.dg/lto/pr55660 c_lto_pr55660_0.o-c_lto_pr55660_1.o link, -O0 -flto -fuse-linker-plugin -fno-fat-lto-objects
+PASS: gcc.dg/lto/pr55660 c_lto_pr55660_0.o-c_lto_pr55660_1.o link, -O2 -flto -flto-partition=1to1 -fno-use-linker-plugin
+PASS: gcc.dg/lto/pr55660 c_lto_pr55660_0.o-c_lto_pr55660_1.o link, -O2 -flto -flto-partition=none -fuse-linker-plugin -fno-fat-lto-objects
+PASS: gcc.dg/lto/pr55660 c_lto_pr55660_0.o-c_lto_pr55660_1.o link, -O2 -flto -fuse-linker-plugin
+PASS: gcc.dg/lto/pr55660 c_lto_pr55660_1.o assemble, -O0 -flto -flto-partition=1to1 -fno-use-linker-plugin
+PASS: gcc.dg/lto/pr55660 c_lto_pr55660_1.o assemble, -O0 -flto -flto-partition=none -fuse-linker-plugin
+PASS: gcc.dg/lto/pr55660 c_lto_pr55660_1.o assemble, -O0 -flto -fuse-linker-plugin -fno-fat-lto-objects
+PASS: gcc.dg/lto/pr55660 c_lto_pr55660_1.o assemble, -O2 -flto -flto-partition=1to1 -fno-use-linker-plugin
+PASS: gcc.dg/lto/pr55660 c_lto_pr55660_1.o assemble, -O2 -flto -flto-partition=none -fuse-linker-plugin -fno-fat-lto-objects
+PASS: gcc.dg/lto/pr55660 c_lto_pr55660_1.o assemble, -O2 -flto -fuse-linker-plugin
...and 247 more

The full diff is at:
 http://cbuild.validation.linaro.org/build/gcc-linaro-4.7+bzr115051~yvan-roux~merge-from-fsf-4.7-20130205/logs/x86_64-precise-cbuild449-oort1-xcortexa15hfr1/testsuite-diff.txt

The full testsuite results are at:
 http://cbuild.validation.linaro.org/build/gcc-linaro-4.7+bzr115051~yvan-roux~merge-from-fsf-4.7-20130205/logs/x86_64-precise-cbuild449-oort1-xcortexa15hfr1/gcc-testsuite.txt

cbuild-checked: x86_64-precise-cbuild449-oort1-xcortexa15hfr1