[PATCH] D31220: [builtins][ARM] Select correct code fragments when compiling for Thumb1/Thum2/ARM ISA

[Weiming Zhao via Phabricator via llvm-commits]

weimingz created this revision.
Herald added a subscriber: aemerson.

Value of __ARM_ARCH_ISA_THUMB isn't based on the actual compilation
 mode (-mthumb, -marm), it reflect's capability of given CPU.

Due to this:
•use tbumb and thumb2 insteand of __ARM_ARCH_ISA_THUMB
•use '.thumb' directive consistently in all affected files
•decorate all thumb functions using DEFINE_COMPILERRT_THUMB_FUNCTION()

(This is based off  Michal's patch https://reviews.llvm.org/D30938)


https://reviews.llvm.org/D31220

Files:
  lib/builtins/arm/aeabi_cdcmp.S
  lib/builtins/arm/aeabi_cfcmp.S
  lib/builtins/arm/aeabi_idivmod.S
  lib/builtins/arm/aeabi_uidivmod.S
  lib/builtins/arm/bswapdi2.S
  lib/builtins/arm/bswapsi2.S
  lib/builtins/arm/clzdi2.S
  lib/builtins/arm/clzsi2.S
  lib/builtins/arm/comparesf2.S
  lib/builtins/arm/divmodsi4.S
  lib/builtins/arm/divsi3.S
  lib/builtins/arm/modsi3.S
  lib/builtins/arm/udivmodsi4.S
  lib/builtins/arm/udivsi3.S
  lib/builtins/arm/umodsi3.S
  lib/builtins/assembly.h

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