2014-03-18 22:07:45 +00:00
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Pull in r200509 from upstream llvm trunk (by Venkatraman Govindaraju):
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[Sparc] Save and restore float registers that may be used for parameter passing.
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2014-05-24 22:27:31 +00:00
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Introduced here: http://svnweb.freebsd.org/changeset/base/262261
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2014-03-18 22:07:45 +00:00
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Index: lib/Target/Sparc/SparcJITInfo.cpp
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===================================================================
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--- lib/Target/Sparc/SparcJITInfo.cpp
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+++ lib/Target/Sparc/SparcJITInfo.cpp
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@@ -28,6 +28,13 @@ extern "C" void SparcCompilationCallback();
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extern "C" {
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#if defined (__sparc__)
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+
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+#if defined(__arch64__)
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+#define FRAME_PTR(X) #X "+2047"
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+#else
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+#define FRAME_PTR(X) #X
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+#endif
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+
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asm(
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".text\n"
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"\t.align 4\n"
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@@ -34,11 +41,46 @@ extern "C" {
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"\t.global SparcCompilationCallback\n"
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"\t.type SparcCompilationCallback, #function\n"
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"SparcCompilationCallback:\n"
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- // Save current register window.
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- "\tsave %sp, -192, %sp\n"
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+ // Save current register window and create stack.
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+ // 128 (save area) + 6*8 (for arguments) + 16*8 (for float regfile) = 304
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+ "\tsave %sp, -304, %sp\n"
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+ // save float regfile to the stack.
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+ "\tstd %f0, [" FRAME_PTR(%fp) "-0]\n"
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+ "\tstd %f2, [" FRAME_PTR(%fp) "-8]\n"
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+ "\tstd %f4, [" FRAME_PTR(%fp) "-16]\n"
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+ "\tstd %f6, [" FRAME_PTR(%fp) "-24]\n"
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+ "\tstd %f8, [" FRAME_PTR(%fp) "-32]\n"
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+ "\tstd %f10, [" FRAME_PTR(%fp) "-40]\n"
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+ "\tstd %f12, [" FRAME_PTR(%fp) "-48]\n"
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+ "\tstd %f14, [" FRAME_PTR(%fp) "-56]\n"
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+ "\tstd %f16, [" FRAME_PTR(%fp) "-64]\n"
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+ "\tstd %f18, [" FRAME_PTR(%fp) "-72]\n"
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+ "\tstd %f20, [" FRAME_PTR(%fp) "-80]\n"
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+ "\tstd %f22, [" FRAME_PTR(%fp) "-88]\n"
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+ "\tstd %f24, [" FRAME_PTR(%fp) "-96]\n"
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+ "\tstd %f26, [" FRAME_PTR(%fp) "-104]\n"
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+ "\tstd %f28, [" FRAME_PTR(%fp) "-112]\n"
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+ "\tstd %f30, [" FRAME_PTR(%fp) "-120]\n"
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// stubaddr is in %g1.
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"\tcall SparcCompilationCallbackC\n"
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"\t mov %g1, %o0\n"
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+ // restore float regfile from the stack.
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+ "\tldd [" FRAME_PTR(%fp) "-0], %f0\n"
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+ "\tldd [" FRAME_PTR(%fp) "-8], %f2\n"
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+ "\tldd [" FRAME_PTR(%fp) "-16], %f4\n"
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+ "\tldd [" FRAME_PTR(%fp) "-24], %f6\n"
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+ "\tldd [" FRAME_PTR(%fp) "-32], %f8\n"
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+ "\tldd [" FRAME_PTR(%fp) "-40], %f10\n"
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+ "\tldd [" FRAME_PTR(%fp) "-48], %f12\n"
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+ "\tldd [" FRAME_PTR(%fp) "-56], %f14\n"
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+ "\tldd [" FRAME_PTR(%fp) "-64], %f16\n"
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+ "\tldd [" FRAME_PTR(%fp) "-72], %f18\n"
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+ "\tldd [" FRAME_PTR(%fp) "-80], %f20\n"
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+ "\tldd [" FRAME_PTR(%fp) "-88], %f22\n"
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+ "\tldd [" FRAME_PTR(%fp) "-96], %f24\n"
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+ "\tldd [" FRAME_PTR(%fp) "-104], %f26\n"
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+ "\tldd [" FRAME_PTR(%fp) "-112], %f28\n"
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+ "\tldd [" FRAME_PTR(%fp) "-120], %f30\n"
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// restore original register window and
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// copy %o0 to %g1
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"\trestore %o0, 0, %g1\n"
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