FP support for bare metal CortexM (adapted from Yves Delley's)

0001-support-FPv4-SP.patch

diff --git a/compiler-rt/lib/builtins/CMakeLists.txt b/compiler-rt/lib/builtins/CMakeLists.txt
index f42e13714c9..35fe752f037 100644
--- a/compiler-rt/lib/builtins/CMakeLists.txt
+++ b/compiler-rt/lib/builtins/CMakeLists.txt
@@ -380,52 +380,61 @@ set(arm_Thumb1_SjLj_EH_SOURCES
   arm/restore_vfp_d8_d15_regs.S
   arm/save_vfp_d8_d15_regs.S
 )
-set(arm_Thumb1_VFPv2_SOURCES
-  arm/adddf3vfp.S
+set(arm_Thumb1_VFPv2_sgl_SOURCES
   arm/addsf3vfp.S
-  arm/divdf3vfp.S
   arm/divsf3vfp.S
-  arm/eqdf2vfp.S
   arm/eqsf2vfp.S
+  arm/fixsfsivfp.S
+  arm/fixunssfsivfp.S
+  arm/floatsisfvfp.S
+  arm/floatunssisfvfp.S
+  arm/gesf2vfp.S
+  arm/gtsf2vfp.S
+  arm/lesf2vfp.S
+  arm/ltsf2vfp.S
+  arm/mulsf3vfp.S
+  arm/negsf2vfp.S
+  arm/nesf2vfp.S
+  arm/subsf3vfp.S
+  arm/unordsf2vfp.S
+)
+set(arm_Thumb1_VFPv2_dbl_SOURCES
+  arm/adddf3vfp.S
+  arm/divdf3vfp.S
+  arm/eqdf2vfp.S
   arm/extendsfdf2vfp.S
   arm/fixdfsivfp.S
-  arm/fixsfsivfp.S
   arm/fixunsdfsivfp.S
-  arm/fixunssfsivfp.S
   arm/floatsidfvfp.S
-  arm/floatsisfvfp.S
   arm/floatunssidfvfp.S
-  arm/floatunssisfvfp.S
   arm/gedf2vfp.S
-  arm/gesf2vfp.S
   arm/gtdf2vfp.S
-  arm/gtsf2vfp.S
   arm/ledf2vfp.S
-  arm/lesf2vfp.S
   arm/ltdf2vfp.S
-  arm/ltsf2vfp.S
   arm/muldf3vfp.S
-  arm/mulsf3vfp.S
   arm/nedf2vfp.S
   arm/negdf2vfp.S
-  arm/negsf2vfp.S
-  arm/nesf2vfp.S
   arm/subdf3vfp.S
-  arm/subsf3vfp.S
   arm/truncdfsf2vfp.S
   arm/unorddf2vfp.S
-  arm/unordsf2vfp.S
+)
+set(arm_Thumb1_VFPv2_SOURCES
+  ${arm_Thumb1_VFPv2_sgl_SOURCES}
+  ${arm_Thumb1_VFPv2_dbl_SOURCES}
 )
 set(arm_Thumb1_icache_SOURCES
   arm/sync_synchronize.S
 )
-set(arm_Thumb1_SOURCES
+set(arm_Thumb1_sgl_SOURCES
   ${arm_Thumb1_JT_SOURCES}
   ${arm_Thumb1_SjLj_EH_SOURCES}
-  ${arm_Thumb1_VFPv2_SOURCES}
+  ${arm_Thumb1_VFPv2_sgl_SOURCES}
   ${arm_Thumb1_icache_SOURCES}
 )
-
+set(arm_Thumb1_SOURCES
+  ${arm_Thumb1_sgl_SOURCES}
+  ${arm_Thumb1_VFPv2_dbl_SOURCES}
+)
 if(MINGW)
   set(arm_SOURCES
     arm/aeabi_idivmod.S
@@ -438,10 +447,14 @@ if(MINGW)
   filter_builtin_sources(arm_SOURCES EXCLUDE arm_SOURCES "${arm_SOURCES};${GENERIC_SOURCES}")
 elseif(NOT WIN32)
   # TODO the EABI sources should only be added to EABI targets
-  set(arm_SOURCES
+  set(arm_sgl_SOURCES
     ${arm_SOURCES}
     ${arm_EABI_SOURCES}
-    ${arm_Thumb1_SOURCES}
+    ${arm_Thumb1_sgl_SOURCES}
+  )
+  set(arm_SOURCES
+    ${arm_sgl_SOURCES}
+    ${arm_Thumb1_VFPv2_dbl_SOURCES}
   )
 
   set(thumb1_SOURCES
@@ -471,8 +484,8 @@ set(arm64_SOURCES ${aarch64_SOURCES})
 
 # macho_embedded archs
 set(armv6m_SOURCES ${thumb1_SOURCES})
-set(armv7m_SOURCES ${arm_SOURCES})
-set(armv7em_SOURCES ${arm_SOURCES})
+set(armv7m_SOURCES ${arm_sgl_SOURCES})
+set(armv7em_SOURCES ${arm_sgl_SOURCES})
 
 # hexagon arch
 set(hexagon_SOURCES ${GENERIC_SOURCES} ${GENERIC_TF_SOURCES})