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riscv-gcc-1
Commit 2c873473 by Richard Henderson Committed by Richard Henderson
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i386.h: Fix comment typo. 

        * config/i386/i386.h: Fix comment typo.
        * config/i386/i386.md (shift+compare pattern names): s/cmpno/cmp/
        (ashr+compare patterns): Match CCGOCmode not CCNOmode.

From-SVN: r39070
parent a26e7fb5
Showing with 60 additions and 22 deletions
gcc/ChangeLog
2001-01-16 Richard Henderson <rth@redhat.com>
* config/i386/i386.h: Fix comment typo.
* config/i386/i386.md (shift+compare pattern names): s/cmpno/cmp/
(ashr+compare patterns): Match CCGOCmode not CCNOmode.
2001-01-16 Phil Edwards <pme@sources.redhat.com>
* gcc.c: Revert previous -fsyntax-only-related change; move
......
gcc/config/i386/i386.h
......@@ -2505,7 +2505,7 @@ while (0)
unspecified garbage in the Carry flag. This mode is used
by inc/dec instructions.
Add CCGCO to indicate comparisons agains zero that allows
Add CCGOC to indicate comparisons agains zero that allows
unspecified garbage in the Carry and Overflow flag. This
mode is used to simulate comparisons of (a-b) and (a+b)
against zero using sub/cmp/add operations.
......
gcc/config/i386/i386.md
......@@ -7715,7 +7715,7 @@
;; This pattern can't accept a variable shift count, since shifts by
;; zero don't affect the flags. We assume that shifts by constant
;; zero are optimized away.
(define_insn "*ashlsi3_cmpno"
(define_insn "*ashlsi3_cmp"
[(set (reg 17)
(compare
(ashift:SI (match_operand:SI 1 "nonimmediate_operand" "0")
......@@ -7844,7 +7844,7 @@
;; This pattern can't accept a variable shift count, since shifts by
;; zero don't affect the flags. We assume that shifts by constant
;; zero are optimized away.
(define_insn "*ashlhi3_cmpno"
(define_insn "*ashlhi3_cmp"
[(set (reg 17)
(compare
(ashift:HI (match_operand:HI 1 "nonimmediate_operand" "0")
......@@ -8011,7 +8011,7 @@
;; This pattern can't accept a variable shift count, since shifts by
;; zero don't affect the flags. We assume that shifts by constant
;; zero are optimized away.
(define_insn "*ashlqi3_cmpno"
(define_insn "*ashlqi3_cmp"
[(set (reg 17)
(compare
(ashift:QI (match_operand:QI 1 "nonimmediate_operand" "0")
......@@ -8205,7 +8205,7 @@
;; This pattern can't accept a variable shift count, since shifts by
;; zero don't affect the flags. We assume that shifts by constant
;; zero are optimized away.
(define_insn "*ashrsi3_one_bit_cmpno"
(define_insn "*ashrsi3_one_bit_cmp"
[(set (reg 17)
(compare
(ashiftrt:SI (match_operand:SI 1 "nonimmediate_operand" "0")
......@@ -8213,7 +8213,7 @@
(const_int 0)))
(set (match_operand:SI 0 "nonimmediate_operand" "=rm")
(ashiftrt:SI (match_dup 1) (match_dup 2)))]
"ix86_match_ccmode (insn, CCNOmode)
"ix86_match_ccmode (insn, CCGOCmode)
&& (TARGET_PENTIUM || TARGET_PENTIUMPRO)
&& ix86_binary_operator_ok (ASHIFTRT, SImode, operands)"
"sar{l}\\t%0"
......@@ -8226,7 +8226,7 @@
;; This pattern can't accept a variable shift count, since shifts by
;; zero don't affect the flags. We assume that shifts by constant
;; zero are optimized away.
(define_insn "*ashrsi3_cmpno"
(define_insn "*ashrsi3_cmp"
[(set (reg 17)
(compare
(ashiftrt:SI (match_operand:SI 1 "nonimmediate_operand" "0")
......@@ -8234,7 +8234,7 @@
(const_int 0)))
(set (match_operand:SI 0 "nonimmediate_operand" "=rm")
(ashiftrt:SI (match_dup 1) (match_dup 2)))]
"ix86_match_ccmode (insn, CCNOmode)
"ix86_match_ccmode (insn, CCGOCmode)
&& ix86_binary_operator_ok (ASHIFTRT, SImode, operands)"
"sar{l}\\t{%2, %0|%0, %2}"
[(set_attr "type" "ishift")
......@@ -8277,7 +8277,7 @@
;; This pattern can't accept a variable shift count, since shifts by
;; zero don't affect the flags. We assume that shifts by constant
;; zero are optimized away.
(define_insn "*ashrhi3_one_bit_cmpno"
(define_insn "*ashrhi3_one_bit_cmp"
[(set (reg 17)
(compare
(ashiftrt:HI (match_operand:HI 1 "nonimmediate_operand" "0")
......@@ -8285,7 +8285,7 @@
(const_int 0)))
(set (match_operand:HI 0 "nonimmediate_operand" "=rm")
(ashiftrt:HI (match_dup 1) (match_dup 2)))]
"ix86_match_ccmode (insn, CCNOmode)
"ix86_match_ccmode (insn, CCGOCmode)
&& (TARGET_PENTIUM || TARGET_PENTIUMPRO)
&& ix86_binary_operator_ok (ASHIFTRT, HImode, operands)"
"sar{w}\\t%0"
......@@ -8298,7 +8298,7 @@
;; This pattern can't accept a variable shift count, since shifts by
;; zero don't affect the flags. We assume that shifts by constant
;; zero are optimized away.
(define_insn "*ashrhi3_cmpno"
(define_insn "*ashrhi3_cmp"
[(set (reg 17)
(compare
(ashiftrt:HI (match_operand:HI 1 "nonimmediate_operand" "0")
......@@ -8306,7 +8306,7 @@
(const_int 0)))
(set (match_operand:HI 0 "nonimmediate_operand" "=rm")
(ashiftrt:HI (match_dup 1) (match_dup 2)))]
"ix86_match_ccmode (insn, CCNOmode)
"ix86_match_ccmode (insn, CCGOCmode)
&& ix86_binary_operator_ok (ASHIFTRT, HImode, operands)"
"sar{w}\\t{%2, %0|%0, %2}"
[(set_attr "type" "ishift")
......@@ -8349,7 +8349,7 @@
;; This pattern can't accept a variable shift count, since shifts by
;; zero don't affect the flags. We assume that shifts by constant
;; zero are optimized away.
(define_insn "*ashrqi3_cmpno_one_bit"
(define_insn "*ashrqi3_one_bit_cmp"
[(set (reg 17)
(compare
(ashiftrt:QI (match_operand:QI 1 "nonimmediate_operand" "0")
......@@ -8357,7 +8357,7 @@
(const_int 0)))
(set (match_operand:QI 0 "nonimmediate_operand" "=rm")
(ashiftrt:QI (match_dup 1) (match_dup 2)))]
"ix86_match_ccmode (insn, CCNOmode)
"ix86_match_ccmode (insn, CCGOCmode)
&& (TARGET_PENTIUM || TARGET_PENTIUMPRO)
&& ix86_binary_operator_ok (ASHIFTRT, QImode, operands)"
"sar{b}\\t%0"
......@@ -8370,7 +8370,7 @@
;; This pattern can't accept a variable shift count, since shifts by
;; zero don't affect the flags. We assume that shifts by constant
;; zero are optimized away.
(define_insn "*ashrqi3_cmpno"
(define_insn "*ashrqi3_cmp"
[(set (reg 17)
(compare
(ashiftrt:QI (match_operand:QI 1 "nonimmediate_operand" "0")
......@@ -8378,7 +8378,7 @@
(const_int 0)))
(set (match_operand:QI 0 "nonimmediate_operand" "=rm")
(ashiftrt:QI (match_dup 1) (match_dup 2)))]
"ix86_match_ccmode (insn, CCNOmode)
"ix86_match_ccmode (insn, CCGOCmode)
&& ix86_binary_operator_ok (ASHIFTRT, QImode, operands)"
"sar{b}\\t{%2, %0|%0, %2}"
[(set_attr "type" "ishift")
......@@ -8478,7 +8478,7 @@
;; This pattern can't accept a variable shift count, since shifts by
;; zero don't affect the flags. We assume that shifts by constant
;; zero are optimized away.
(define_insn "*lshrsi3_cmpno_one_bit"
(define_insn "*lshrsi3_one_bit_cmp"
[(set (reg 17)
(compare
(lshiftrt:SI (match_operand:SI 1 "nonimmediate_operand" "0")
......@@ -8499,7 +8499,7 @@
;; This pattern can't accept a variable shift count, since shifts by
;; zero don't affect the flags. We assume that shifts by constant
;; zero are optimized away.
(define_insn "*lshrsi3_cmpno"
(define_insn "*lshrsi3_cmp"
[(set (reg 17)
(compare
(lshiftrt:SI (match_operand:SI 1 "nonimmediate_operand" "0")
......@@ -8550,7 +8550,7 @@
;; This pattern can't accept a variable shift count, since shifts by
;; zero don't affect the flags. We assume that shifts by constant
;; zero are optimized away.
(define_insn "*lshrhi3_cmpno_one_bit"
(define_insn "*lshrhi3_one_bit_cmp"
[(set (reg 17)
(compare
(lshiftrt:HI (match_operand:HI 1 "nonimmediate_operand" "0")
......@@ -8571,7 +8571,7 @@
;; This pattern can't accept a variable shift count, since shifts by
;; zero don't affect the flags. We assume that shifts by constant
;; zero are optimized away.
(define_insn "*lshrhi3_cmpno"
(define_insn "*lshrhi3_cmp"
[(set (reg 17)
(compare
(lshiftrt:HI (match_operand:HI 1 "nonimmediate_operand" "0")
......@@ -8622,7 +8622,7 @@
;; This pattern can't accept a variable shift count, since shifts by
;; zero don't affect the flags. We assume that shifts by constant
;; zero are optimized away.
(define_insn "*lshrqi2_cmpno_one_bit"
(define_insn "*lshrqi2_one_bit_cmp"
[(set (reg 17)
(compare
(lshiftrt:QI (match_operand:QI 1 "nonimmediate_operand" "0")
......@@ -8643,7 +8643,7 @@
;; This pattern can't accept a variable shift count, since shifts by
;; zero don't affect the flags. We assume that shifts by constant
;; zero are optimized away.
(define_insn "*lshrqi2_cmpno"
(define_insn "*lshrqi2_cmp"
[(set (reg 17)
(compare
(lshiftrt:QI (match_operand:QI 1 "nonimmediate_operand" "0")
......
gcc/testsuite/gcc.c-torture/execute/20010116-1.c 0 → 100644
/* Distilled from optimization/863. */
extern void abort (void);
extern void exit (int);
extern void ok (int);
typedef struct
{
int x, y, z;
} Data;
void find (Data *first, Data *last)
{
int i;
for (i = (last - first) >> 2; i > 0; --i)
ok(i);
abort ();
}
void ok(int i)
{
if (i != 1)
abort ();
exit (0);
}
int
main ()
{
Data DataList[4];
find (DataList + 0, DataList + 4);
}
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