.align 2
/* This function stores 64-bit general-purpose registers back in
- the stack, starting at @(r1), where the cookie is supposed to
- have been stored, and loads the address in which each register
- was stored into itself. Its execution time is linear on the
+ the stack, and loads the address in which each register
+ was stored into itself. The lower 32 bits of r17 hold the address
+ to begin storing, and the upper 32 bits of r17 hold the cookie.
+ Its execution time is linear on the
number of registers that actually have to be copied, and it is
optimized for structures larger than 64 bits, as opposed to
invidivual `long long' arguments. See sh.h for details on the
GLOBAL(GCC_shcompact_incoming_args):
ptabs/l r18, tr0 /* Prepare to return. */
shlri r17, 32, r0 /* Load the cookie. */
- movi ((datalabel LOCAL(ia_main_table) - 31 * 2) >> 16) & 65535, r35
+ movi ((datalabel LOCAL(ia_main_table) - 31 * 2) >> 16) & 65535, r43
pt/l LOCAL(ia_loop), tr1
add.l r17, r63, r17
- shori ((datalabel LOCAL(ia_main_table) - 31 * 2)) & 65535, r35
+ shori ((datalabel LOCAL(ia_main_table) - 31 * 2)) & 65535, r43
LOCAL(ia_loop):
- nsb r0, r28
- shlli r28, 1, r29
- ldx.w r35, r29, r30
+ nsb r0, r36
+ shlli r36, 1, r37
+ ldx.w r43, r37, r38
LOCAL(ia_main_label):
- ptrel/l r30, tr2
+ ptrel/l r38, tr2
blink tr2, r63
LOCAL(ia_r2_ld): /* Store r2 and load its address. */
- movi 3, r30
- shlli r30, 29, r31
- and r0, r31, r32
- andc r0, r31, r0
+ movi 3, r38
+ shlli r38, 29, r39
+ and r0, r39, r40
+ andc r0, r39, r0
stx.q r17, r63, r2
add.l r17, r63, r2
addi.l r17, 8, r17
- beq/u r31, r32, tr1
+ beq/u r39, r40, tr1
LOCAL(ia_r3_ld): /* Store r3 and load its address. */
- movi 3, r30
- shlli r30, 26, r31
- and r0, r31, r32
- andc r0, r31, r0
+ movi 3, r38
+ shlli r38, 26, r39
+ and r0, r39, r40
+ andc r0, r39, r0
stx.q r17, r63, r3
add.l r17, r63, r3
addi.l r17, 8, r17
- beq/u r31, r32, tr1
+ beq/u r39, r40, tr1
LOCAL(ia_r4_ld): /* Store r4 and load its address. */
- movi 3, r30
- shlli r30, 23, r31
- and r0, r31, r32
- andc r0, r31, r0
+ movi 3, r38
+ shlli r38, 23, r39
+ and r0, r39, r40
+ andc r0, r39, r0
stx.q r17, r63, r4
add.l r17, r63, r4
addi.l r17, 8, r17
- beq/u r31, r32, tr1
+ beq/u r39, r40, tr1
LOCAL(ia_r5_ld): /* Store r5 and load its address. */
- movi 3, r30
- shlli r30, 20, r31
- and r0, r31, r32
- andc r0, r31, r0
+ movi 3, r38
+ shlli r38, 20, r39
+ and r0, r39, r40
+ andc r0, r39, r0
stx.q r17, r63, r5
add.l r17, r63, r5
addi.l r17, 8, r17
- beq/u r31, r32, tr1
+ beq/u r39, r40, tr1
LOCAL(ia_r6_ld): /* Store r6 and load its address. */
- movi 3, r30
- shlli r30, 16, r31
- and r0, r31, r32
- andc r0, r31, r0
+ movi 3, r38
+ shlli r38, 16, r39
+ and r0, r39, r40
+ andc r0, r39, r0
stx.q r17, r63, r6
add.l r17, r63, r6
addi.l r17, 8, r17
- beq/u r31, r32, tr1
+ beq/u r39, r40, tr1
LOCAL(ia_r7_ld): /* Store r7 and load its address. */
- movi 3 << 12, r31
- and r0, r31, r32
- andc r0, r31, r0
+ movi 3 << 12, r39
+ and r0, r39, r40
+ andc r0, r39, r0
stx.q r17, r63, r7
add.l r17, r63, r7
addi.l r17, 8, r17
- beq/u r31, r32, tr1
+ beq/u r39, r40, tr1
LOCAL(ia_r8_ld): /* Store r8 and load its address. */
- movi 3 << 8, r31
- and r0, r31, r32
- andc r0, r31, r0
+ movi 3 << 8, r39
+ and r0, r39, r40
+ andc r0, r39, r0
stx.q r17, r63, r8
add.l r17, r63, r8
addi.l r17, 8, r17
- beq/u r31, r32, tr1
+ beq/u r39, r40, tr1
LOCAL(ia_r9_ld): /* Store r9 and load its address. */
stx.q r17, r63, r9
add.l r17, r63, r9
blink tr0, r63
LOCAL(ia_r2_push): /* Push r2 onto the stack. */
- movi 1, r30
- shlli r30, 29, r31
- andc r0, r31, r0
+ movi 1, r38
+ shlli r38, 29, r39
+ andc r0, r39, r0
stx.q r17, r63, r2
addi.l r17, 8, r17
blink tr1, r63
LOCAL(ia_r3_push): /* Push r3 onto the stack. */
- movi 1, r30
- shlli r30, 26, r31
- andc r0, r31, r0
+ movi 1, r38
+ shlli r38, 26, r39
+ andc r0, r39, r0
stx.q r17, r63, r3
addi.l r17, 8, r17
blink tr1, r63
LOCAL(ia_r4_push): /* Push r4 onto the stack. */
- movi 1, r30
- shlli r30, 23, r31
- andc r0, r31, r0
+ movi 1, r38
+ shlli r38, 23, r39
+ andc r0, r39, r0
stx.q r17, r63, r4
addi.l r17, 8, r17
blink tr1, r63
LOCAL(ia_r5_push): /* Push r5 onto the stack. */
- movi 1, r30
- shlli r30, 20, r31
- andc r0, r31, r0
+ movi 1, r38
+ shlli r38, 20, r39
+ andc r0, r39, r0
stx.q r17, r63, r5
addi.l r17, 8, r17
blink tr1, r63
LOCAL(ia_r6_push): /* Push r6 onto the stack. */
- movi 1, r30
- shlli r30, 16, r31
- andc r0, r31, r0
+ movi 1, r38
+ shlli r38, 16, r39
+ andc r0, r39, r0
stx.q r17, r63, r6
addi.l r17, 8, r17
blink tr1, r63
LOCAL(ia_r7_push): /* Push r7 onto the stack. */
- movi 1 << 12, r31
- andc r0, r31, r0
+ movi 1 << 12, r39
+ andc r0, r39, r0
stx.q r17, r63, r7
addi.l r17, 8, r17
blink tr1, r63
LOCAL(ia_r8_push): /* Push r8 onto the stack. */
- movi 1 << 8, r31
- andc r0, r31, r0
+ movi 1 << 8, r39
+ andc r0, r39, r0
stx.q r17, r63, r8
addi.l r17, 8, r17
blink tr1, r63
LOCAL(ia_push_seq): /* Push a sequence of registers onto the stack. */
- andi r0, 7 << 1, r30
- movi (LOCAL(ia_end_of_push_seq) >> 16) & 65535, r32
- shlli r30, 2, r31
- shori LOCAL(ia_end_of_push_seq) & 65535, r32
- sub.l r32, r31, r33
- ptabs/l r33, tr2
+ andi r0, 7 << 1, r38
+ movi (LOCAL(ia_end_of_push_seq) >> 16) & 65535, r40
+ shlli r38, 2, r39
+ shori LOCAL(ia_end_of_push_seq) & 65535, r40
+ sub.l r40, r39, r41
+ ptabs/l r41, tr2
blink tr2, r63
LOCAL(ia_stack_of_push_seq): /* Beginning of push sequence. */
stx.q r17, r63, r3
projects / gcc.git / commitdiff