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| author | Michael Meissner <meissner@gcc.gnu.org> | 1994-08-28 03:22:52 +0000 |
|---|---|---|
| committer | Michael Meissner <meissner@gcc.gnu.org> | 1994-08-28 03:22:52 +0000 |
| commit | 91f0226f7c244dc65396fd1a6e61e2e7464c8da1 (patch) | |
| tree | 59d6e2a028cdb5a679da1a68641cba260a2b395a /gcc | |
| parent | e9954ee434e38d801b463328d9cf2d7fbba24f9a (diff) | |
| download | gcc-91f0226f7c244dc65396fd1a6e61e2e7464c8da1.zip gcc-91f0226f7c244dc65396fd1a6e61e2e7464c8da1.tar.gz gcc-91f0226f7c244dc65396fd1a6e61e2e7464c8da1.tar.bz2 | |
Fix indexing off arg ptr & push of byte values.
From-SVN: r7994
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/i386/i386.c | 9 | ||||
| -rw-r--r-- | gcc/config/i386/i386.h | 2 | ||||
| -rw-r--r-- | gcc/config/i386/i386.md | 18 |
3 files changed, 16 insertions, 13 deletions
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index 389f6eb..ddfb4ee 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -1076,6 +1076,15 @@ legitimate_address_p (mode, addr, strict) else disp = addr; /* displacement */ + /* Allow arg pointer and stack pointer as index if there is not scaling */ + if (base && indx && !scale + && (indx == arg_pointer_rtx || indx == stack_pointer_rtx)) + { + rtx tmp = base; + base = indx; + indx = tmp; + } + /* Validate base register */ if (base) { diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h index e50e7f9..1bc8048 100644 --- a/gcc/config/i386/i386.h +++ b/gcc/config/i386/i386.h @@ -498,7 +498,7 @@ enum reg_class 0x3, /* AD_REGS */ \ 0xf, /* Q_REGS */ \ 0x10, 0x20, /* SIREG, DIREG */ \ - 0x1007f, /* INDEX_REGS */ \ + 0x07f, /* INDEX_REGS */ \ 0x100ff, /* GENERAL_REGS */ \ 0x0100, 0x0200, /* FP_TOP_REG, FP_SECOND_REG */ \ 0xff00, /* FLOAT_REGS */ \ diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md index 04b3a1e..1b6017e 100644 --- a/gcc/config/i386/i386.md +++ b/gcc/config/i386/i386.md @@ -778,8 +778,7 @@ else if (TARGET_MOVE && (reload_in_progress | reload_completed) == 0 && GET_CODE (operands[0]) == MEM - && GET_CODE (operands[1]) == MEM - && (!TARGET_386 || !push_operand (operands[0], SImode))) + && GET_CODE (operands[1]) == MEM) { operands[1] = force_reg (SImode, operands[1]); } @@ -842,8 +841,7 @@ if (TARGET_MOVE && (reload_in_progress | reload_completed) == 0 && GET_CODE (operands[0]) == MEM - && GET_CODE (operands[1]) == MEM - && (!TARGET_386 || !push_operand (operands[0], HImode))) + && GET_CODE (operands[1]) == MEM) { operands[1] = force_reg (HImode, operands[1]); } @@ -892,8 +890,7 @@ if (TARGET_MOVE && (reload_in_progress | reload_completed) == 0 && GET_CODE (operands[0]) == MEM - && GET_CODE (operands[1]) == MEM - && (!TARGET_386 || !push_operand (operands[0], HImode))) + && GET_CODE (operands[1]) == MEM) { operands[1] = force_reg (HImode, operands[1]); } @@ -969,8 +966,7 @@ if (TARGET_MOVE && (reload_in_progress | reload_completed) == 0 && GET_CODE (operands[0]) == MEM - && GET_CODE (operands[1]) == MEM - && (!TARGET_386 || !push_operand (operands[0], QImode))) + && GET_CODE (operands[1]) == MEM) { operands[1] = force_reg (QImode, operands[1]); } @@ -1024,8 +1020,7 @@ if (TARGET_MOVE && (reload_in_progress | reload_completed) == 0 && GET_CODE (operands[0]) == MEM - && GET_CODE (operands[1]) == MEM - && (!TARGET_386 || !push_operand (operands[0], QImode))) + && GET_CODE (operands[1]) == MEM) { operands[1] = force_reg (QImode, operands[1]); } @@ -1384,8 +1379,7 @@ if (TARGET_MOVE && (reload_in_progress | reload_completed) == 0 && GET_CODE (operands[0]) == MEM - && GET_CODE (operands[1]) == MEM - && (!TARGET_386 || !push_operand (operands[0], QImode))) + && GET_CODE (operands[1]) == MEM) { operands[1] = force_reg (DImode, operands[1]); } |