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| author | Richard Earnshaw <rearnsha@arm.com> | 2025-03-31 18:06:54 +0100 |
|---|---|---|
| committer | Richard Earnshaw <rearnsha@arm.com> | 2025-05-07 17:49:02 +0100 |
| commit | fe10ca6e3cf583640155812b230a0153ce4dc7b7 (patch) | |
| tree | d358019a873ffa909cbf4a00a3ba9e8deda9c353 | |
| parent | 0a339746e7646bacf2c8aa5512268d23660f26f9 (diff) | |
| download | gcc-fe10ca6e3cf583640155812b230a0153ce4dc7b7.zip gcc-fe10ca6e3cf583640155812b230a0153ce4dc7b7.tar.gz gcc-fe10ca6e3cf583640155812b230a0153ce4dc7b7.tar.bz2 | |
arm: select CCFPEmode for LTGT [PR91323]
Besides Arm, there are three other ports that define both CCFPmode and
CCFPEmode. AArch64 and Sparc return CCFPEmode for LTGT; the other,
Visium, doesn't support LTGT at all.
AArch64 was changed in r8-5286-g8332c5ee8c5f3b, and Sparc with
r10-2926-g000a5f8d23c04c.
I suspect this issue is latent on Arm because cbranch?f4 and cstore?f4
reject LTGT and UNEQ and we fall back to a generic expansion which
happens to work. Nevertheless, this patch updates the relevant bits
of the Arm port to match the specification introduced in
r10-2926-g000a5f8d23c04c.
gcc/ChangeLog:
PR target/91323
* config/arm/arm.cc (arm_select_cc_mode): Use CCFPEmode for LTGT.
| -rw-r--r-- | gcc/config/arm/arm.cc | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/config/arm/arm.cc b/gcc/config/arm/arm.cc index fccddb0..6bdb68a 100644 --- a/gcc/config/arm/arm.cc +++ b/gcc/config/arm/arm.cc @@ -16211,13 +16211,13 @@ arm_select_cc_mode (enum rtx_code op, rtx x, rtx y) case UNGT: case UNGE: case UNEQ: - case LTGT: return CCFPmode; case LT: case LE: case GT: case GE: + case LTGT: return (flag_finite_math_only ? CCFPmode : CCFPEmode); |