1 %default { "func":"MterpDoPackedSwitch" } 2 /* 3 * Handle a packed-switch or sparse-switch instruction. In both cases 4 * we decode it and hand it off to a helper function. 5 * 6 * We don't really expect backward branches in a switch statement, but 7 * they're perfectly legal, so we check for them here. 8 * 9 * for: packed-switch, sparse-switch 10 */ 11 /* op vAA, +BBBB */ 12 movl 2(rPC), %ecx # ecx <- BBBBbbbb 13 GET_VREG %eax, rINST # eax <- vAA 14 leal (rPC,%ecx,2), %ecx # ecx <- PC + BBBBbbbb*2 15 movl %eax, OUT_ARG1(%esp) # ARG1 <- vAA 16 movl %ecx, OUT_ARG0(%esp) # ARG0 <- switchData 17 call SYMBOL($func) 18 REFRESH_IBASE 19 testl %eax, %eax 20 movl %eax, rINST 21 jmp MterpCommonTakenBranch 22
