diff options
| author | uros <uros@138bc75d-0d04-0410-961f-82ee72b054a4> | 2004-04-30 05:31:48 +0000 |
|---|---|---|
| committer | uros <uros@138bc75d-0d04-0410-961f-82ee72b054a4> | 2004-04-30 05:31:48 +0000 |
| commit | da79e1033e716a2ce1c64e936565631c95672e08 (patch) | |
| tree | bd07ed820aed8970605279c7ff710d30350e2256 /gcc/reg-stack.c | |
| parent | 295acf4f5ca177d3b8d9fb631b463e4011378197 (diff) | |
| download | gcc-da79e1033e716a2ce1c64e936565631c95672e08.tar.gz | |
2004-04-30 Uros Bizjak <uros@kss-loka.si>
* reg-stack.c (subst_stack_regs_pat): <UNSPEC_SIN, UNSPEC_COS,
UNSPEC_FRNDINT, UNSPEC_F2XM1>: abort() if src1 dies.
<UNSPEC_SINCOS_COS, UNSPEC_TAN_ONE, UNSPEC_XTRACT_FRACT>: Same.
<UNSPEC_SINCOS_SIN, UNSPEC_TAN_TAN, UNSPEC_XTRACT_EXP>: Same.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@81324 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/reg-stack.c')
| -rw-r--r-- | gcc/reg-stack.c | 32 |
1 files changed, 12 insertions, 20 deletions
diff --git a/gcc/reg-stack.c b/gcc/reg-stack.c index 2836e63d7ed..6d101841993 100644 --- a/gcc/reg-stack.c +++ b/gcc/reg-stack.c @@ -1733,18 +1733,15 @@ subst_stack_regs_pat (rtx insn, stack regstack, rtx pat) emit_swap_insn (insn, regstack, *src1); + /* Input should never die, it is + replaced with output. */ src1_note = find_regno_note (insn, REG_DEAD, REGNO (*src1)); + if (src1_note) + abort(); if (STACK_REG_P (*dest)) replace_reg (dest, FIRST_STACK_REG); - if (src1_note) - { - replace_reg (&XEXP (src1_note, 0), FIRST_STACK_REG); - regstack->top--; - CLEAR_HARD_REG_BIT (regstack->reg_set, REGNO (*src1)); - } - replace_reg (src1, FIRST_STACK_REG); break; @@ -1849,7 +1846,11 @@ subst_stack_regs_pat (rtx insn, stack regstack, rtx pat) emit_swap_insn (insn, regstack, *src1); + /* Input should never die, it is + replaced with output. */ src1_note = find_regno_note (insn, REG_DEAD, REGNO (*src1)); + if (src1_note) + abort(); /* Push the result back onto stack. Empty stack slot will be filled in second part of insn. */ @@ -1859,12 +1860,6 @@ subst_stack_regs_pat (rtx insn, stack regstack, rtx pat) replace_reg (dest, FIRST_STACK_REG); } - if (src1_note) - { - replace_reg (&XEXP (src1_note, 0), FIRST_STACK_REG); - regstack->top--; - CLEAR_HARD_REG_BIT (regstack->reg_set, REGNO (*src1)); - } replace_reg (src1, FIRST_STACK_REG); break; @@ -1878,7 +1873,11 @@ subst_stack_regs_pat (rtx insn, stack regstack, rtx pat) emit_swap_insn (insn, regstack, *src1); + /* Input should never die, it is + replaced with output. */ src1_note = find_regno_note (insn, REG_DEAD, REGNO (*src1)); + if (src1_note) + abort(); /* Push the result back onto stack. Fill empty slot from first part of insn and fix top of stack pointer. */ @@ -1890,13 +1889,6 @@ subst_stack_regs_pat (rtx insn, stack regstack, rtx pat) regstack->top++; } - if (src1_note) - { - replace_reg (&XEXP (src1_note, 0), FIRST_STACK_REG); - regstack->top--; - CLEAR_HARD_REG_BIT (regstack->reg_set, REGNO (*src1)); - } - replace_reg (src1, FIRST_STACK_REG); break; |