diff options
| author | Richard Earnshaw <rearnsha@arm.com> | 1999-02-16 11:00:47 +0000 |
|---|---|---|
| committer | Richard Earnshaw <rearnsha@gcc.gnu.org> | 1999-02-16 11:00:47 +0000 |
| commit | d2ceebd171b3c9dc2d6079ca8e49012d2f0dd21c (patch) | |
| tree | f6629bf735ba63b605e454db45988851d4c945c3 /gcc | |
| parent | e84aaeeb5e1652dc24df45574c765e013a0f84a7 (diff) | |
| download | gcc-d2ceebd171b3c9dc2d6079ca8e49012d2f0dd21c.zip gcc-d2ceebd171b3c9dc2d6079ca8e49012d2f0dd21c.tar.gz gcc-d2ceebd171b3c9dc2d6079ca8e49012d2f0dd21c.tar.bz2 | |
arm.md (*zeroextractqi_compare0_scratch): Re-add load instruction killed in previous change.
* config/arm/arm.md (*zeroextractqi_compare0_scratch): Re-add load
instruction killed in previous change. Simplify mask generation.
(*zeroextractsi_compare0_scratch): Simpify mask generation.
From-SVN: r25241
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/config/arm/arm.md | 25 |
2 files changed, 13 insertions, 18 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 98e194f..0b6bbdf 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +Tue Feb 16 10:53:51 1999 Richard Earnshaw (rearnsha@arm.com) + + * config/arm/arm.md (*zeroextractqi_compare0_scratch): Re-add load + instruction killed in previous change. Simplify mask generation. + (*zeroextractsi_compare0_scratch): Simpify mask generation. + Tue Feb 16 09:52:26 1999 Nick Clifton <nickc@cygnus.com> * config/arm/arm.md (zeroextractqi_compare0_scratch): Ensure that diff --git a/gcc/config/arm/arm.md b/gcc/config/arm/arm.md index b9241c8..cf4212b 100644 --- a/gcc/config/arm/arm.md +++ b/gcc/config/arm/arm.md @@ -1193,16 +1193,10 @@ && INTVAL (operands[1]) + (INTVAL (operands[2]) & 1) <= 8 && INTVAL (operands[1]) + INTVAL (operands[2]) <= 32" "* -{ - unsigned int mask = 0; - int cnt = INTVAL (operands[1]); - - while (cnt--) - mask = (mask << 1) | 1; - operands[1] = GEN_INT (mask << INTVAL (operands[2])); + operands[1] = GEN_INT (((1 << INTVAL (operands[1])) - 1) + << INTVAL (operands[2])); output_asm_insn (\"tst%?\\t%0, %1\", operands); return \"\"; -} " [(set_attr "conds" "set")]) @@ -1214,19 +1208,14 @@ (match_operand 2 "const_int_operand" "n")) (const_int 0))) (clobber (match_scratch:QI 3 "=r"))] - "INTVAL (operands[2]) >= 0 && INTVAL (operands[1]) > 0 && - ((INTVAL (operands[1]) + INTVAL (operands[2])) <= 8)" + "INTVAL (operands[2]) >= 0 && INTVAL (operands[1]) > 0 + && (INTVAL (operands[2]) + INTVAL (operands[1]) <= 8)" "* -{ - unsigned int mask = 0; - int cnt = INTVAL (operands[1]); - - while (cnt--) - mask = (mask << 1) | 1; - operands[1] = GEN_INT (mask << INTVAL (operands[2])); + operands[1] = GEN_INT (((1 << INTVAL (operands[1])) - 1) + << INTVAL (operands[2])); + output_asm_insn (\"ldr%?b\\t%3, %0\", operands); output_asm_insn (\"tst%?\\t%3, %1\", operands); return \"\"; -} " [(set_attr "conds" "set") (set_attr "length" "8")]) |