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authorMaciej W. Rozycki <macro@embecosm.com>2023-11-22 01:18:29 +0000
committerMaciej W. Rozycki <macro@embecosm.com>2023-11-22 01:18:29 +0000
commit37ff43c27344784caed28778fb847244a49644bd (patch)
tree7e18a21adaa02ed41de4b64cc9603b745b01968b
parent7e126d8d0fbe5677070f02c32a1425849ce36298 (diff)
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RISC-V: Also allow FP conditions in `riscv_expand_conditional_move'
In `riscv_expand_conditional_move' we only let integer conditions through at the moment, even though code has already been prepared to handle floating-point conditions as well. Lift this restriction and only bail out if a non-word-mode integer condition has been requested, as we cannot handle this specific case owing to machine instruction set restriction. We already take care of the non-integer, non-floating-point case later on. gcc/ * config/riscv/riscv.cc (riscv_expand_conditional_move): Don't bail out in floating-point conditions.
-rw-r--r--gcc/config/riscv/riscv.cc8
1 files changed, 4 insertions, 4 deletions
diff --git a/gcc/config/riscv/riscv.cc b/gcc/config/riscv/riscv.cc
index 14e5493..ef6569e 100644
--- a/gcc/config/riscv/riscv.cc
+++ b/gcc/config/riscv/riscv.cc
@@ -4138,12 +4138,12 @@ riscv_expand_conditional_move (rtx dest, rtx op, rtx cons, rtx alt)
machine_mode mode0 = GET_MODE (op0);
machine_mode mode1 = GET_MODE (op1);
- /* The comparison must be comparing WORD_MODE objects. We must
- enforce that so that we don't strip away a sign_extension
+ /* An integer comparison must be comparing WORD_MODE objects. We
+ must enforce that so that we don't strip away a sign_extension
thinking it is unnecessary. We might consider using
riscv_extend_operands if they are not already properly extended. */
- if ((mode0 != word_mode && mode0 != VOIDmode)
- || (mode1 != word_mode && mode1 != VOIDmode))
+ if ((INTEGRAL_MODE_P (mode0) && mode0 != word_mode)
+ || (INTEGRAL_MODE_P (mode1) && mode1 != word_mode))
return false;
/* In the fallback generic case use MODE rather than WORD_MODE for