The RISCV target did not set the GCC atomic compare and swap defines,
unlike other targets. This broke builds for things like glib on RISCV.
Patch by Kristof Provost (kprovost)
Differential Revision: https://reviews.llvm.org/D91784
Builder.defineMacro("__riscv_muldiv");
}
- if (HasA)
+ if (HasA) {
Builder.defineMacro("__riscv_atomic");
+ Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_1");
+ Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_2");
+ Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4");
+ if (Is64Bit)
+ Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_8");
+ }
if (HasF || HasD) {
Builder.defineMacro("__riscv_flen", HasD ? "64" : "32");