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-rw-r--r--gcc/loop.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/gcc/loop.c b/gcc/loop.c
index f675a87..68ef439 100644
--- a/gcc/loop.c
+++ b/gcc/loop.c
@@ -6127,13 +6127,13 @@ basic_induction_var (loop, x, mode, dest_reg, p, inc_val, mult_val, location)
return 1;
case SUBREG:
- /* If this is a SUBREG for a promoted variable, check the inner
- value. */
- if (SUBREG_PROMOTED_VAR_P (x))
- return basic_induction_var (loop, SUBREG_REG (x),
- GET_MODE (SUBREG_REG (x)),
- dest_reg, p, inc_val, mult_val, location);
- return 0;
+ /* If what's inside the SUBREG is a BIV, then the SUBREG. This will
+ handle addition of promoted variables.
+ ??? The comment at the start of this function is wrong: promoted
+ variable increments don't look like it says they do. */
+ return basic_induction_var (loop, SUBREG_REG (x),
+ GET_MODE (SUBREG_REG (x)),
+ dest_reg, p, inc_val, mult_val, location);
case REG:
/* If this register is assigned in a previous insn, look at its