@@ -2256,7 +2256,8 @@ gen_compare_reg (rtx comparison, machine_mode omode)
cmode = GET_MODE (x);
if (cmode == VOIDmode)
cmode = GET_MODE (y);
- gcc_assert (cmode == SImode || cmode == SFmode || cmode == DFmode);
+ if (cmode != SImode && cmode != SFmode && cmode != DFmode)
+ return NULL_RTX;
if (cmode == SImode)
{
if (!register_operand (x, SImode))
@@ -1618,8 +1618,11 @@ (define_expand "movsicc"
(match_operand:SI 2 "nonmemory_operand" "")
(match_operand:SI 3 "register_operand" "")))]
""
- "operands[1] = gen_compare_reg (operands[1], VOIDmode);")
-
+ "
+ operands[1] = gen_compare_reg (operands[1], VOIDmode);
+ if (operands[1] == NULL_RTX)
+ FAIL;
+ ")
(define_expand "movdicc"
[(set (match_operand:DI 0 "dest_reg_operand" "")
@@ -1627,7 +1630,11 @@ (define_expand "movdicc"
(match_operand:DI 2 "nonmemory_operand" "")
(match_operand:DI 3 "register_operand" "")))]
""
- "operands[1] = gen_compare_reg (operands[1], VOIDmode);")
+ "
+ operands[1] = gen_compare_reg (operands[1], VOIDmode);
+ if (operands[1] == NULL_RTX)
+ FAIL;
+ ")
(define_expand "movsfcc"
@@ -1636,7 +1643,11 @@ (define_expand "movsfcc"
(match_operand:SF 2 "nonmemory_operand" "")
(match_operand:SF 3 "register_operand" "")))]
""
- "operands[1] = gen_compare_reg (operands[1], VOIDmode);")
+ "
+ operands[1] = gen_compare_reg (operands[1], VOIDmode);
+ if (operands[1] == NULL_RTX)
+ FAIL;
+ ")
(define_expand "movdfcc"
[(set (match_operand:DF 0 "dest_reg_operand" "")
@@ -1644,7 +1655,11 @@ (define_expand "movdfcc"
(match_operand:DF 2 "nonmemory_operand" "")
(match_operand:DF 3 "register_operand" "")))]
""
- "operands[1] = gen_compare_reg (operands[1], VOIDmode);")
+ "
+ operands[1] = gen_compare_reg (operands[1], VOIDmode);
+ if (operands[1] == NULL_RTX)
+ FAIL;
+ ")
(define_insn "*movsicc_insn"
[(set (match_operand:SI 0 "dest_reg_operand" "=w,w")
If the movcc comparison is not valid it triggers an assert in the current implementation. This behavior is not needed as we can FAIL the movcc expand pattern. gcc/ * config/arc/arc.cc (gen_compare_reg): Return NULL_RTX if the comparison is not valid. * config/arc/arc.md (movsicc): Fail if comparison is not valid. (movdicc): Likewise. (movsfcc): Likewise. (movdfcc): Likewise. Signed-off-by: Claudiu Zissulescu <claziss@synopsys.com> --- gcc/config/arc/arc.cc | 3 ++- gcc/config/arc/arc.md | 25 ++++++++++++++++++++----- 2 files changed, 22 insertions(+), 6 deletions(-)