diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/sh/lib1funcs.asm | 135 |
2 files changed, 73 insertions, 67 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index e02d1c6..822e21a 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2002-08-07 Stephen Clarke <stephen.clarke@superh.com> + + * config/sh/lib1funcs.asm (GCC_shcompact_incoming_args): Don't + overwrite callee-save registers. Fix comment. + 2002-08-06 Chris Demetriou <cgd@broadcom.com> * config/mips/mips.c (override_options): Set MASK_BRANCHLIKELY diff --git a/gcc/config/sh/lib1funcs.asm b/gcc/config/sh/lib1funcs.asm index c98208f..68b2ca3 100644 --- a/gcc/config/sh/lib1funcs.asm +++ b/gcc/config/sh/lib1funcs.asm @@ -2357,9 +2357,10 @@ LOCAL(ia_main_table): .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 @@ -2369,136 +2370,136 @@ LOCAL(ia_main_table): 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 |