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| author | Koakuma <koachan@protonmail.com> | 2022-06-13 22:34:10 +0700 |
|---|---|---|
| committer | Koakuma <koachan@protonmail.com> | 2022-06-24 21:08:41 +0700 |
| commit | 40590c8bf976a44451e161b4a75d7f8bac15a7d4 (patch) | |
| tree | 249d5671d25df337af85ae8ccd3dd0217553aaf5 /src | |
| parent | 5c8612642b84d2d3f91e6bbe26f9cde2579997f7 (diff) | |
| download | zig-40590c8bf976a44451e161b4a75d7f8bac15a7d4.tar.gz zig-40590c8bf976a44451e161b4a75d7f8bac15a7d4.zip | |
stage2: sparc64: Save registers before calling another function
Diffstat (limited to 'src')
| -rw-r--r-- | src/arch/sparc64/CodeGen.zig | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/arch/sparc64/CodeGen.zig b/src/arch/sparc64/CodeGen.zig index d0eee413ad..3c9083faa1 100644 --- a/src/arch/sparc64/CodeGen.zig +++ b/src/arch/sparc64/CodeGen.zig @@ -1081,6 +1081,13 @@ fn airCall(self: *Self, inst: Air.Inst.Index, modifier: std.builtin.CallOptions. // (SCD 2.4.1, page 3P-10) try self.spillConditionFlagsIfOccupied(); + // Save caller-saved registers, but crucially *after* we save the + // compare flags as saving compare flags may require a new + // caller-saved register + for (abi.caller_preserved_regs) |reg| { + try self.register_manager.getReg(reg, null); + } + for (info.args) |mc_arg, arg_i| { const arg = args[arg_i]; const arg_ty = self.air.typeOf(arg); |