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[Sparc] Save and restore float registers that may be used for parameter passing. 

llvm-svn: 200509
This commit is contained in:
Venkatraman Govindaraju 2014-01-31 01:53:08 +00:00
parent e096352228
commit 902d97bc8b
1 changed files with 44 additions and 2 deletions
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46
llvm/lib/Target/Sparc/SparcJITInfo.cpp
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@ -28,17 +28,59 @@ extern "C" void SparcCompilationCallback();
extern "C" {
#if defined (__sparc__)
#if defined(__arch64__)
#define FRAME_PTR(X) #X "+2047"
#else
#define FRAME_PTR(X) #X
#endif
asm(
".text\n"
"\t.align 4\n"
"\t.global SparcCompilationCallback\n"
"\t.type SparcCompilationCallback, #function\n"
"SparcCompilationCallback:\n"
// Save current register window.
"\tsave %sp, -192, %sp\n"
// Save current register window and create stack.
// 128 (save area) + 6*8 (for arguments) + 16*8 (for float regfile) = 304
"\tsave %sp, -304, %sp\n"
// save float regfile to the stack.
"\tstd %f0, [" FRAME_PTR(%fp) "-0]\n"
"\tstd %f2, [" FRAME_PTR(%fp) "-8]\n"
"\tstd %f4, [" FRAME_PTR(%fp) "-16]\n"
"\tstd %f6, [" FRAME_PTR(%fp) "-24]\n"
"\tstd %f8, [" FRAME_PTR(%fp) "-32]\n"
"\tstd %f10, [" FRAME_PTR(%fp) "-40]\n"
"\tstd %f12, [" FRAME_PTR(%fp) "-48]\n"
"\tstd %f14, [" FRAME_PTR(%fp) "-56]\n"
"\tstd %f16, [" FRAME_PTR(%fp) "-64]\n"
"\tstd %f18, [" FRAME_PTR(%fp) "-72]\n"
"\tstd %f20, [" FRAME_PTR(%fp) "-80]\n"
"\tstd %f22, [" FRAME_PTR(%fp) "-88]\n"
"\tstd %f24, [" FRAME_PTR(%fp) "-96]\n"
"\tstd %f26, [" FRAME_PTR(%fp) "-104]\n"
"\tstd %f28, [" FRAME_PTR(%fp) "-112]\n"
"\tstd %f30, [" FRAME_PTR(%fp) "-120]\n"
// stubaddr is in %g1.
"\tcall SparcCompilationCallbackC\n"
"\t mov %g1, %o0\n"
// restore float regfile from the stack.
"\tldd [" FRAME_PTR(%fp) "-0], %f0\n"
"\tldd [" FRAME_PTR(%fp) "-8], %f2\n"
"\tldd [" FRAME_PTR(%fp) "-16], %f4\n"
"\tldd [" FRAME_PTR(%fp) "-24], %f6\n"
"\tldd [" FRAME_PTR(%fp) "-32], %f8\n"
"\tldd [" FRAME_PTR(%fp) "-40], %f10\n"
"\tldd [" FRAME_PTR(%fp) "-48], %f12\n"
"\tldd [" FRAME_PTR(%fp) "-56], %f14\n"
"\tldd [" FRAME_PTR(%fp) "-64], %f16\n"
"\tldd [" FRAME_PTR(%fp) "-72], %f18\n"
"\tldd [" FRAME_PTR(%fp) "-80], %f20\n"
"\tldd [" FRAME_PTR(%fp) "-88], %f22\n"
"\tldd [" FRAME_PTR(%fp) "-96], %f24\n"
"\tldd [" FRAME_PTR(%fp) "-104], %f26\n"
"\tldd [" FRAME_PTR(%fp) "-112], %f28\n"
"\tldd [" FRAME_PTR(%fp) "-120], %f30\n"
// restore original register window and
// copy %o0 to %g1
"\trestore %o0, 0, %g1\n"