--- a/v8/src/base/immediate-crash.h
+++ b/v8/src/base/immediate-crash.h
@@ -93,6 +93,13 @@
 #define TRAP_SEQUENCE1_() asm volatile(".2byte 0x0001");
 #define TRAP_SEQUENCE2_() asm volatile("")
 
+#elif V8_HOST_ARCH_PPC64
+
+#define TRAP_SEQUENCE1_() asm volatile("trap")
+// Intentionally empty: __builtin_unreachable() is always part of the sequence
+// (see IMMEDIATE_CRASH below)
+#define TRAP_SEQUENCE2_() asm volatile("")
+
 #else
 
 // Crash report accuracy will not be guaranteed on other architectures, but at