1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
|
---
ARMCodeEmitter.cpp | 13 +++++++++----
1 file changed, 9 insertions(+), 4 deletions(-)
--- a/lib/Target/ARM/ARMCodeEmitter.cpp
+++ b/lib/Target/ARM/ARMCodeEmitter.cpp
@@ -778,10 +778,6 @@
unsigned ImplicitRn) {
const TargetInstrDesc &TID = MI.getDesc();
- if (TID.Opcode == ARM::BFC) {
- llvm_report_error("ARMv6t2 JIT is not yet supported.");
- }
-
// Part of binary is determined by TableGn.
unsigned Binary = getBinaryCodeForInstr(MI);
@@ -817,6 +813,15 @@
Binary |= ((Hi16 >> 12) & 0xF) << 16;
emitWordLE(Binary);
return;
+ } else if((TID.Opcode == ARM::BFC) || (TID.Opcode == ARM::BFI)) {
+ uint32_t v = ~MI.getOperand(2).getImm();
+ int32_t lsb = CountTrailingZeros_32(v);
+ int32_t msb = (32 - CountLeadingZeros_32(v)) - 1;
+ // Insts[20-16] = msb, Insts[11-7] = lsb
+ Binary |= (msb & 0x1F) << 16;
+ Binary |= (lsb & 0x1F) << 7;
+ emitWordLE(Binary);
+ return;
}
// If this is a two-address operand, skip it. e.g. MOVCCr operand 1.
|
