lots of miscellaneous things all in one big commit

 * add `@compileLog(...)` builtin function
   - Helps debug code running at compile time
   - See #240
 * fix crash when there is an error on the start value of a slice
 * add implicit cast from int and float types to int and float
   literals if the value is known at compile time
 * make array concatenation work with slices in addition to
   arrays and c string literals
 * fix compile error message for something not having field access
 * fix crash when `@setDebugSafety()` was called from a
   function being evaluated at compile-time
 * fix compile-time evaluation of overflow math builtins.
 * avoid debug safety panic handler in builtin.o and compiler_rt.o
   since we use no debug safety in these modules anyway
 * add compiler_rt functions for division on ARM
   - Closes #254
 * move default panic handler to std.debug so users can
   call it manually
 * std.io.printf supports a width in the format specifier

1 files changed, 14 insertions, 0 deletions

diff --git a/src/ir_print.cpp b/src/ir_print.cpp
index a378df04b5..3c9e53662e 100644
--- a/src/ir_print.cpp
+++ b/src/ir_print.cpp
@@ -532,6 +532,17 @@ static void ir_print_compile_err(IrPrint *irp, IrInstructionCompileErr *instruct
     fprintf(irp->f, ")");
 }
 
+static void ir_print_compile_log(IrPrint *irp, IrInstructionCompileLog *instruction) {
+    fprintf(irp->f, "@compileLog(");
+    for (size_t i = 0; i < instruction->msg_count; i += 1) {
+        if (i != 0)
+            fprintf(irp->f, ",");
+        IrInstruction *msg = instruction->msg_list[i];
+        ir_print_other_instruction(irp, msg);
+    }
+    fprintf(irp->f, ")");
+}
+
 static void ir_print_err_name(IrPrint *irp, IrInstructionErrName *instruction) {
     fprintf(irp->f, "@errorName(");
     ir_print_other_instruction(irp, instruction->value);
@@ -990,6 +1001,9 @@ static void ir_print_instruction(IrPrint *irp, IrInstruction *instruction) {
         case IrInstructionIdCompileErr:
             ir_print_compile_err(irp, (IrInstructionCompileErr *)instruction);
             break;
+        case IrInstructionIdCompileLog:
+            ir_print_compile_log(irp, (IrInstructionCompileLog *)instruction);
+            break;
         case IrInstructionIdErrName:
             ir_print_err_name(irp, (IrInstructionErrName *)instruction);
             break;