We do not longer need to do this because this bug has been solved:
http://jato.lighthouseapp.com/projects/29055/tickets/5-sse-registers-are-saved-and-registered-unconditionally
Signed-off-by: Tomek Grabiec <tgrab...@gmail.com>
---
arch/x86/emit-code.c | 83 -----------------------------------
arch/x86/include/arch/stack-frame.h | 1 -
2 files changed, 0 insertions(+), 84 deletions(-)
diff --git a/arch/x86/emit-code.c b/arch/x86/emit-code.c
index 2253202..92044fd 100644
--- a/arch/x86/emit-code.c
+++ b/arch/x86/emit-code.c
@@ -64,13 +64,6 @@ static void emit_indirect_jump_reg(struct buffer *buf, enum
machine_reg reg);
static void emit_exception_test(struct buffer *buf, enum machine_reg reg);
static void emit_restore_regs(struct buffer *buf);
-static void __emit_mov_xmm_membase(struct buffer *buf, enum machine_reg src,
- enum machine_reg base, unsigned long offs);
-static void __emit_mov_membase_xmm(struct buffer *buf, enum machine_reg base,
unsigned long offs, enum machine_reg dst);
-static void __emit_mov_64_xmm_membase(struct buffer *buf, enum machine_reg src,
- enum machine_reg base, unsigned long offs);
-static void __emit_mov_64_membase_xmm(struct buffer *buf, enum machine_reg
base, unsigned long offs, enum machine_reg dst);
-
/************************
* Common code emitters *
************************/
@@ -1009,27 +1002,6 @@ void emit_prolog(struct buffer *buf, unsigned long
nr_locals)
__emit_push_reg(buf, MACH_REG_ESI);
__emit_push_reg(buf, MACH_REG_EBX);
- __emit_sub_imm_reg(buf, 8 * 8, MACH_REG_ESP);
- if (cpu_has(X86_FEATURE_SSE2)) {
- __emit_mov_64_xmm_membase(buf, MACH_REG_XMM0, MACH_REG_ESP, 0);
- __emit_mov_64_xmm_membase(buf, MACH_REG_XMM1, MACH_REG_ESP, 8);
- __emit_mov_64_xmm_membase(buf, MACH_REG_XMM2, MACH_REG_ESP, 16);
- __emit_mov_64_xmm_membase(buf, MACH_REG_XMM3, MACH_REG_ESP, 24);
- __emit_mov_64_xmm_membase(buf, MACH_REG_XMM4, MACH_REG_ESP, 32);
- __emit_mov_64_xmm_membase(buf, MACH_REG_XMM5, MACH_REG_ESP, 40);
- __emit_mov_64_xmm_membase(buf, MACH_REG_XMM6, MACH_REG_ESP, 48);
- __emit_mov_64_xmm_membase(buf, MACH_REG_XMM7, MACH_REG_ESP, 56);
- } else {
- __emit_mov_xmm_membase(buf, MACH_REG_XMM0, MACH_REG_ESP, 0);
- __emit_mov_xmm_membase(buf, MACH_REG_XMM1, MACH_REG_ESP, 8);
- __emit_mov_xmm_membase(buf, MACH_REG_XMM2, MACH_REG_ESP, 16);
- __emit_mov_xmm_membase(buf, MACH_REG_XMM3, MACH_REG_ESP, 24);
- __emit_mov_xmm_membase(buf, MACH_REG_XMM4, MACH_REG_ESP, 32);
- __emit_mov_xmm_membase(buf, MACH_REG_XMM5, MACH_REG_ESP, 40);
- __emit_mov_xmm_membase(buf, MACH_REG_XMM6, MACH_REG_ESP, 48);
- __emit_mov_xmm_membase(buf, MACH_REG_XMM7, MACH_REG_ESP, 56);
- }
-
__emit_push_reg(buf, MACH_REG_EBP);
__emit_mov_reg_reg(buf, MACH_REG_ESP, MACH_REG_EBP);
@@ -1076,27 +1048,6 @@ static void emit_push_imm(struct buffer *buf, struct
operand *operand)
static void emit_restore_regs(struct buffer *buf)
{
- if (cpu_has(X86_FEATURE_SSE2)) {
- __emit_mov_64_membase_xmm(buf, MACH_REG_ESP, 0, MACH_REG_XMM0);
- __emit_mov_64_membase_xmm(buf, MACH_REG_ESP, 8, MACH_REG_XMM1);
- __emit_mov_64_membase_xmm(buf, MACH_REG_ESP, 16, MACH_REG_XMM2);
- __emit_mov_64_membase_xmm(buf, MACH_REG_ESP, 24, MACH_REG_XMM3);
- __emit_mov_64_membase_xmm(buf, MACH_REG_ESP, 32, MACH_REG_XMM4);
- __emit_mov_64_membase_xmm(buf, MACH_REG_ESP, 40, MACH_REG_XMM5);
- __emit_mov_64_membase_xmm(buf, MACH_REG_ESP, 48, MACH_REG_XMM6);
- __emit_mov_64_membase_xmm(buf, MACH_REG_ESP, 56, MACH_REG_XMM7);
- } else {
- __emit_mov_membase_xmm(buf, MACH_REG_ESP, 0, MACH_REG_XMM0);
- __emit_mov_membase_xmm(buf, MACH_REG_ESP, 8, MACH_REG_XMM1);
- __emit_mov_membase_xmm(buf, MACH_REG_ESP, 16, MACH_REG_XMM2);
- __emit_mov_membase_xmm(buf, MACH_REG_ESP, 24, MACH_REG_XMM3);
- __emit_mov_membase_xmm(buf, MACH_REG_ESP, 32, MACH_REG_XMM4);
- __emit_mov_membase_xmm(buf, MACH_REG_ESP, 40, MACH_REG_XMM5);
- __emit_mov_membase_xmm(buf, MACH_REG_ESP, 48, MACH_REG_XMM6);
- __emit_mov_membase_xmm(buf, MACH_REG_ESP, 56, MACH_REG_XMM7);
- }
- __emit_add_imm_reg(buf, 8 * 8, MACH_REG_ESP);
-
__emit_pop_reg(buf, MACH_REG_EBX);
__emit_pop_reg(buf, MACH_REG_ESI);
__emit_pop_reg(buf, MACH_REG_EDI);
@@ -1631,40 +1582,6 @@ static void emit_mov_memindex_xmm(struct buffer *buf,
struct operand *src,
emit(buf, encode_sib(src->shift, encode_reg(&src->index_reg),
encode_reg(&src->base_reg)));
}
-static void __emit_mov_xmm_membase(struct buffer *buf, enum machine_reg src,
- enum machine_reg base, unsigned long offs)
-{
- emit(buf, 0xf3);
- emit(buf, 0x0f);
- __emit_membase_reg(buf, 0x11, base, offs, src);
-
-}
-
-static void __emit_mov_membase_xmm(struct buffer *buf, enum machine_reg base,
- unsigned long offs, enum machine_reg dst)
-{
- emit(buf, 0xf3);
- emit(buf, 0x0f);
- __emit_membase_reg(buf, 0x10, base, offs, dst);
-}
-
-static void __emit_mov_64_xmm_membase(struct buffer *buf, enum machine_reg src,
- enum machine_reg base, unsigned long offs)
-{
- emit(buf, 0xf2);
- emit(buf, 0x0f);
- __emit_membase_reg(buf, 0x11, base, offs, src);
-
-}
-
-static void __emit_mov_64_membase_xmm(struct buffer *buf, enum machine_reg
base,
- unsigned long offs, enum machine_reg dst)
-{
- emit(buf, 0xf2);
- emit(buf, 0x0f);
- __emit_membase_reg(buf, 0x10, base, offs, dst);
-}
-
static void emit_mov_64_memindex_xmm(struct buffer *buf, struct operand *src,
struct operand *dest)
{
diff --git a/arch/x86/include/arch/stack-frame.h
b/arch/x86/include/arch/stack-frame.h
index bf69b27..4b3a5e6 100644
--- a/arch/x86/include/arch/stack-frame.h
+++ b/arch/x86/include/arch/stack-frame.h
@@ -18,7 +18,6 @@ struct native_stack_frame {
struct jit_stack_frame {
void *prev; /* previous stack frame link */
- unsigned long long xmm[8];
unsigned long old_ebx;
unsigned long old_esi;
unsigned long old_edi;
--
1.6.3.3
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