6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-01-02 07:32:52 +00:00
Code Issues Projects Releases Wiki Activity

PR9081: Split up LDM instruction with deprecated use of both LR and PC.

Browse Source 
This is completely untested but pretty straightforward, so hopefully I
got it right.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124694 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bob Wilson 2011-02-01 22:30:51 +00:00
parent 9a14a362d0
commit 692df93de4
1 changed files with 3 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
lib/Target/ARM/ARMJITInfo.cpp
View File

@ -43,7 +43,7 @@ static TargetJITInfo::JITCompilerFn JITCompilerFunction;
#define ASMPREFIX GETASMPREFIX(__USER_LABEL_PREFIX__) #define ASMPREFIX GETASMPREFIX(__USER_LABEL_PREFIX__)
// CompilationCallback stub - We can't use a C function with inline assembly in // CompilationCallback stub - We can't use a C function with inline assembly in
// it, because we the prolog/epilog inserted by GCC won't work for us (we need // it, because the prolog/epilog inserted by GCC won't work for us. (We need
// to preserve more context and manipulate the stack directly). Instead, // to preserve more context and manipulate the stack directly). Instead,
// write our own wrapper, which does things our way, so we have complete // write our own wrapper, which does things our way, so we have complete
// control over register saving and restoring. // control over register saving and restoring.
@ -99,7 +99,8 @@ extern "C" {
// The above twiddling of the saved return addresses allows us to // The above twiddling of the saved return addresses allows us to
// deallocate everything, including the LR the stub saved, all in one // deallocate everything, including the LR the stub saved, all in one
// pop instruction. // pop instruction.
"ldmia sp!, {r0, r1, r2, r3, lr, pc}\n" "ldmia sp!, {r0, r1, r2, r3, lr}\n"
"ldr pc, [sp], #4\n"
); );
#else // Not an ARM host #else // Not an ARM host
void ARMCompilationCallback() { void ARMCompilationCallback() {