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[v4,43/63] llvm: add support for OP_SWITCH with a range

Message ID 20170321001607.75169-44-luc.vanoostenryck@gmail.com (mailing list archive)
State Superseded, archived
Headers show

Commit Message

Luc Van Oostenryck March 21, 2017, 12:15 a.m. UTC 
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
---
 sparse-llvm.c | 17 +++++++----------
 1 file changed, 7 insertions(+), 10 deletions(-)
diff mbox

Patch

diff --git a/sparse-llvm.c b/sparse-llvm.c
index 6530d2d59..035c7b42d 100644
--- a/sparse-llvm.c
+++ b/sparse-llvm.c
@@ -760,10 +760,8 @@  static void output_op_switch(struct function *fn, struct instruction *insn)
 	int n_jmp = 0;
 
 	FOR_EACH_PTR(insn->multijmp_list, jmp) {
-		if (jmp->begin == jmp->end) {		/* case N */
-			n_jmp++;
-		} else if (jmp->begin < jmp->end) {	/* case M..N */
-			assert(0);
+		if (jmp->begin <= jmp->end) {
+			n_jmp += (jmp->end - jmp->begin) + 1;
 		} else					/* default case */
 			def = jmp->target;
 	} END_FOR_EACH_PTR(jmp);
@@ -773,12 +771,11 @@  static void output_op_switch(struct function *fn, struct instruction *insn)
 				 def ? def->priv : NULL, n_jmp);
 
 	FOR_EACH_PTR(insn->multijmp_list, jmp) {
-		if (jmp->begin == jmp->end) {		/* case N */
-			LLVMAddCase(target,
-				val_to_value(jmp->begin, insn->type),
-				jmp->target->priv);
-		} else if (jmp->begin < jmp->end) {	/* case M..N */
-			assert(0);
+		long val;
+
+		for (val = jmp->begin; val <= jmp->end; val++) {
+			LLVMValueRef Val = val_to_value(val, insn->type);
+			LLVMAddCase(target, Val, jmp->target->priv);
 		}
 	} END_FOR_EACH_PTR(jmp);