lib1funcs.asm (GCC_shcompact_incoming_args): Don't overwrite callee-save registers.
* config/sh/lib1funcs.asm (GCC_shcompact_incoming_args): Don't overwrite callee-save registers. Fix comment. From-SVN: r56101
This commit is contained in:
Stephen Clarke
Joern Rennecke
parent
a98b7b289a
commit
ac1ca4515f
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@ -1,3 +1,8 @@
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2002-08-07 Stephen Clarke <stephen.clarke@superh.com>
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* config/sh/lib1funcs.asm (GCC_shcompact_incoming_args): Don't
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overwrite callee-save registers. Fix comment.
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2002-08-06 Chris Demetriou <cgd@broadcom.com>
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* config/mips/mips.c (override_options): Set MASK_BRANCHLIKELY
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@ -2357,9 +2357,10 @@ LOCAL(ia_main_table):
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.align 2
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/* This function stores 64-bit general-purpose registers back in
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the stack, starting at @(r1), where the cookie is supposed to
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have been stored, and loads the address in which each register
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was stored into itself. Its execution time is linear on the
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the stack, and loads the address in which each register
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was stored into itself. The lower 32 bits of r17 hold the address
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to begin storing, and the upper 32 bits of r17 hold the cookie.
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Its execution time is linear on the
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number of registers that actually have to be copied, and it is
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optimized for structures larger than 64 bits, as opposed to
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invidivual `long long' arguments. See sh.h for details on the
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@ -2369,136 +2370,136 @@ LOCAL(ia_main_table):
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GLOBAL(GCC_shcompact_incoming_args):
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ptabs/l r18, tr0 /* Prepare to return. */
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shlri r17, 32, r0 /* Load the cookie. */
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movi ((datalabel LOCAL(ia_main_table) - 31 * 2) >> 16) & 65535, r35
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movi ((datalabel LOCAL(ia_main_table) - 31 * 2) >> 16) & 65535, r43
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pt/l LOCAL(ia_loop), tr1
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add.l r17, r63, r17
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shori ((datalabel LOCAL(ia_main_table) - 31 * 2)) & 65535, r35
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shori ((datalabel LOCAL(ia_main_table) - 31 * 2)) & 65535, r43
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LOCAL(ia_loop):
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nsb r0, r28
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shlli r28, 1, r29
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ldx.w r35, r29, r30
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nsb r0, r36
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shlli r36, 1, r37
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ldx.w r43, r37, r38
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LOCAL(ia_main_label):
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ptrel/l r30, tr2
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ptrel/l r38, tr2
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blink tr2, r63
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LOCAL(ia_r2_ld): /* Store r2 and load its address. */
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movi 3, r30
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shlli r30, 29, r31
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and r0, r31, r32
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andc r0, r31, r0
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movi 3, r38
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shlli r38, 29, r39
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and r0, r39, r40
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andc r0, r39, r0
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stx.q r17, r63, r2
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add.l r17, r63, r2
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addi.l r17, 8, r17
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beq/u r31, r32, tr1
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beq/u r39, r40, tr1
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LOCAL(ia_r3_ld): /* Store r3 and load its address. */
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movi 3, r30
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shlli r30, 26, r31
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and r0, r31, r32
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andc r0, r31, r0
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movi 3, r38
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shlli r38, 26, r39
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and r0, r39, r40
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andc r0, r39, r0
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stx.q r17, r63, r3
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add.l r17, r63, r3
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addi.l r17, 8, r17
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beq/u r31, r32, tr1
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beq/u r39, r40, tr1
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LOCAL(ia_r4_ld): /* Store r4 and load its address. */
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movi 3, r30
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shlli r30, 23, r31
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and r0, r31, r32
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andc r0, r31, r0
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movi 3, r38
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shlli r38, 23, r39
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and r0, r39, r40
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andc r0, r39, r0
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stx.q r17, r63, r4
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add.l r17, r63, r4
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addi.l r17, 8, r17
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beq/u r31, r32, tr1
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beq/u r39, r40, tr1
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LOCAL(ia_r5_ld): /* Store r5 and load its address. */
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movi 3, r30
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shlli r30, 20, r31
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and r0, r31, r32
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andc r0, r31, r0
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movi 3, r38
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shlli r38, 20, r39
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and r0, r39, r40
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andc r0, r39, r0
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stx.q r17, r63, r5
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add.l r17, r63, r5
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addi.l r17, 8, r17
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beq/u r31, r32, tr1
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beq/u r39, r40, tr1
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LOCAL(ia_r6_ld): /* Store r6 and load its address. */
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movi 3, r30
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shlli r30, 16, r31
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and r0, r31, r32
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andc r0, r31, r0
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movi 3, r38
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shlli r38, 16, r39
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and r0, r39, r40
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andc r0, r39, r0
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stx.q r17, r63, r6
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add.l r17, r63, r6
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addi.l r17, 8, r17
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beq/u r31, r32, tr1
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beq/u r39, r40, tr1
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LOCAL(ia_r7_ld): /* Store r7 and load its address. */
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movi 3 << 12, r31
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and r0, r31, r32
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andc r0, r31, r0
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movi 3 << 12, r39
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and r0, r39, r40
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andc r0, r39, r0
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stx.q r17, r63, r7
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add.l r17, r63, r7
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addi.l r17, 8, r17
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beq/u r31, r32, tr1
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beq/u r39, r40, tr1
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LOCAL(ia_r8_ld): /* Store r8 and load its address. */
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movi 3 << 8, r31
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and r0, r31, r32
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andc r0, r31, r0
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movi 3 << 8, r39
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and r0, r39, r40
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andc r0, r39, r0
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stx.q r17, r63, r8
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add.l r17, r63, r8
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addi.l r17, 8, r17
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beq/u r31, r32, tr1
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beq/u r39, r40, tr1
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LOCAL(ia_r9_ld): /* Store r9 and load its address. */
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stx.q r17, r63, r9
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add.l r17, r63, r9
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blink tr0, r63
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LOCAL(ia_r2_push): /* Push r2 onto the stack. */
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movi 1, r30
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shlli r30, 29, r31
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andc r0, r31, r0
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movi 1, r38
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shlli r38, 29, r39
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andc r0, r39, r0
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stx.q r17, r63, r2
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addi.l r17, 8, r17
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blink tr1, r63
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LOCAL(ia_r3_push): /* Push r3 onto the stack. */
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movi 1, r30
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shlli r30, 26, r31
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andc r0, r31, r0
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movi 1, r38
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shlli r38, 26, r39
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andc r0, r39, r0
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stx.q r17, r63, r3
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addi.l r17, 8, r17
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blink tr1, r63
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LOCAL(ia_r4_push): /* Push r4 onto the stack. */
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movi 1, r30
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shlli r30, 23, r31
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andc r0, r31, r0
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movi 1, r38
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shlli r38, 23, r39
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andc r0, r39, r0
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stx.q r17, r63, r4
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addi.l r17, 8, r17
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blink tr1, r63
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LOCAL(ia_r5_push): /* Push r5 onto the stack. */
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movi 1, r30
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shlli r30, 20, r31
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andc r0, r31, r0
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movi 1, r38
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shlli r38, 20, r39
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andc r0, r39, r0
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stx.q r17, r63, r5
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addi.l r17, 8, r17
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blink tr1, r63
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LOCAL(ia_r6_push): /* Push r6 onto the stack. */
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movi 1, r30
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shlli r30, 16, r31
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andc r0, r31, r0
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movi 1, r38
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shlli r38, 16, r39
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andc r0, r39, r0
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stx.q r17, r63, r6
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addi.l r17, 8, r17
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blink tr1, r63
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LOCAL(ia_r7_push): /* Push r7 onto the stack. */
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movi 1 << 12, r31
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andc r0, r31, r0
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movi 1 << 12, r39
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andc r0, r39, r0
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stx.q r17, r63, r7
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addi.l r17, 8, r17
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blink tr1, r63
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LOCAL(ia_r8_push): /* Push r8 onto the stack. */
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movi 1 << 8, r31
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andc r0, r31, r0
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movi 1 << 8, r39
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andc r0, r39, r0
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stx.q r17, r63, r8
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addi.l r17, 8, r17
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blink tr1, r63
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LOCAL(ia_push_seq): /* Push a sequence of registers onto the stack. */
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andi r0, 7 << 1, r30
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movi (LOCAL(ia_end_of_push_seq) >> 16) & 65535, r32
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shlli r30, 2, r31
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shori LOCAL(ia_end_of_push_seq) & 65535, r32
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sub.l r32, r31, r33
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ptabs/l r33, tr2
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andi r0, 7 << 1, r38
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movi (LOCAL(ia_end_of_push_seq) >> 16) & 65535, r40
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shlli r38, 2, r39
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shori LOCAL(ia_end_of_push_seq) & 65535, r40
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sub.l r40, r39, r41
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ptabs/l r41, tr2
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blink tr2, r63
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LOCAL(ia_stack_of_push_seq): /* Beginning of push sequence. */
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stx.q r17, r63, r3
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