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| author | Uros Bizjak <ubizjak@gmail.com> | 2018-09-06 23:39:47 +0200 |
|---|---|---|
| committer | Uros Bizjak <uros@gcc.gnu.org> | 2018-09-06 23:39:47 +0200 |
| commit | b3892454f7a813871f8877c48fb6ec114ce22cdb (patch) | |
| tree | 7a1752c36916b6f300b337e02d7bf11fbc2fb303 /gcc | |
| parent | bd46d32c51acb745fe230994f7b5a2ac4db0ce8c (diff) | |
| download | gcc-b3892454f7a813871f8877c48fb6ec114ce22cdb.zip gcc-b3892454f7a813871f8877c48fb6ec114ce22cdb.tar.gz gcc-b3892454f7a813871f8877c48fb6ec114ce22cdb.tar.bz2 | |
reg-stack.c (get_true_reg): Reorder to fallthru to FLOAT case.
* reg-stack.c (get_true_reg) <case FLOAT_TRUNCATE>: Reorder
to fallthru to FLOAT case.
From-SVN: r264151
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/reg-stack.c | 17 |
2 files changed, 14 insertions, 8 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 5ab342e..9657eee 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2018-09-06 Uros Bizjak <ubizjak@gmail.com> + + * reg-stack.c (get_true_reg) <case FLOAT_TRUNCATE>: Reorder + to fallthru to FLOAT case. + 2018-09-06 Will Schmidt <will_schmidt@vnet.ibm.com> PR target/86731 diff --git a/gcc/reg-stack.c b/gcc/reg-stack.c index 519ea6d..0f1b6d5 100644 --- a/gcc/reg-stack.c +++ b/gcc/reg-stack.c @@ -413,8 +413,9 @@ get_true_reg (rtx *pat) /* Eliminate FP subregister accesses in favor of the actual FP register in use. */ { - rtx subreg; - if (STACK_REG_P (subreg = SUBREG_REG (*pat))) + rtx subreg = SUBREG_REG (*pat); + + if (STACK_REG_P (subreg)) { int regno_off = subreg_regno_offset (REGNO (subreg), GET_MODE (subreg), @@ -427,6 +428,12 @@ get_true_reg (rtx *pat) pat = &XEXP (*pat, 0); break; } + + case FLOAT_TRUNCATE: + if (!flag_unsafe_math_optimizations) + return pat; + /* FALLTHRU */ + case FLOAT: case FIX: case FLOAT_EXTEND: @@ -439,12 +446,6 @@ get_true_reg (rtx *pat) pat = &XVECEXP (*pat, 0, 0); return pat; - case FLOAT_TRUNCATE: - if (!flag_unsafe_math_optimizations) - return pat; - pat = &XEXP (*pat, 0); - break; - default: return pat; } |