[PATCH v3 13/26] Hexagon (target/hexagon) cleanup ternary operators in semantics

Taylor Simpson posted 26 patches 4 years, 10 months ago
There is a newer version of this series
[PATCH v3 13/26] Hexagon (target/hexagon) cleanup ternary operators in semantics
Posted by Taylor Simpson 4 years, 10 months ago
Change  (cond ? (res = x) : (res = y)) to res = (cond ? x : y)

This makes the semnatics easier to for idef-parser to deal with

The following instructions are impacted
    C2_any8
    C2_all8
    C2_mux
    C2_muxii
    C2_muxir
    C2_muxri

Signed-off-by: Taylor Simpson <tsimpson@quicinc.com>
---
 target/hexagon/imported/compare.idef | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/target/hexagon/imported/compare.idef b/target/hexagon/imported/compare.idef
index 3551467..abd016f 100644
--- a/target/hexagon/imported/compare.idef
+++ b/target/hexagon/imported/compare.idef
@@ -198,11 +198,11 @@ Q6INSN(C4_or_orn,"Pd4=or(Ps4,or(Pt4,!Pu4))",ATTRIBS(A_CRSLOT23),
 
 Q6INSN(C2_any8,"Pd4=any8(Ps4)",ATTRIBS(A_CRSLOT23),
 "Logical ANY of low 8 predicate bits",
-{ PsV ? (PdV=0xff) : (PdV=0x00); })
+{ PdV = (PsV ? 0xff : 0x00); })
 
 Q6INSN(C2_all8,"Pd4=all8(Ps4)",ATTRIBS(A_CRSLOT23),
 "Logical ALL of low 8 predicate bits",
-{ (PsV==0xff) ? (PdV=0xff) : (PdV=0x00); })
+{ PdV = (PsV == 0xff ? 0xff : 0x00); })
 
 Q6INSN(C2_vitpack,"Rd32=vitpack(Ps4,Pt4)",ATTRIBS(),
 "Pack the odd and even bits of two predicate registers",
@@ -212,7 +212,7 @@ Q6INSN(C2_vitpack,"Rd32=vitpack(Ps4,Pt4)",ATTRIBS(),
 
 Q6INSN(C2_mux,"Rd32=mux(Pu4,Rs32,Rt32)",ATTRIBS(),
 "Scalar MUX",
-{ (fLSBOLD(PuV)) ? (RdV=RsV):(RdV=RtV); })
+{ RdV = (fLSBOLD(PuV) ? RsV : RtV); })
 
 
 Q6INSN(C2_cmovenewit,"if (Pu4.new) Rd32=#s12",ATTRIBS(A_ARCHV2),
@@ -269,18 +269,18 @@ Q6INSN(C2_ccombinewf,"if (!Pu4) Rdd32=combine(Rs32,Rt32)",ATTRIBS(A_ARCHV2),
 
 Q6INSN(C2_muxii,"Rd32=mux(Pu4,#s8,#S8)",ATTRIBS(A_ARCHV2),
 "Scalar MUX immediates",
-{ fIMMEXT(siV); (fLSBOLD(PuV)) ? (RdV=siV):(RdV=SiV); })
+{ fIMMEXT(siV); RdV = (fLSBOLD(PuV) ? siV : SiV); })
 
 
 
 Q6INSN(C2_muxir,"Rd32=mux(Pu4,Rs32,#s8)",ATTRIBS(A_ARCHV2),
 "Scalar MUX register immediate",
-{ fIMMEXT(siV); (fLSBOLD(PuV)) ? (RdV=RsV):(RdV=siV); })
+{ fIMMEXT(siV); RdV = (fLSBOLD(PuV) ? RsV : siV); })
 
 
 Q6INSN(C2_muxri,"Rd32=mux(Pu4,#s8,Rs32)",ATTRIBS(A_ARCHV2),
 "Scalar MUX register immediate",
-{ fIMMEXT(siV); (fLSBOLD(PuV)) ? (RdV=siV):(RdV=RsV); })
+{ fIMMEXT(siV); RdV = (fLSBOLD(PuV) ? siV : RsV); })
 
 
 
-- 
2.7.4


Re: [PATCH v3 13/26] Hexagon (target/hexagon) cleanup ternary operators in semantics
Posted by Richard Henderson 4 years, 10 months ago
On 4/7/21 6:57 PM, Taylor Simpson wrote:
> Change  (cond ? (res = x) : (res = y)) to res = (cond ? x : y)
> 
> This makes the semnatics easier to for idef-parser to deal with
> 
> The following instructions are impacted
>      C2_any8
>      C2_all8
>      C2_mux
>      C2_muxii
>      C2_muxir
>      C2_muxri
> 
> Signed-off-by: Taylor Simpson<tsimpson@quicinc.com>
> ---
>   target/hexagon/imported/compare.idef | 12 ++++++------
>   1 file changed, 6 insertions(+), 6 deletions(-)

I presume this change has also been made in the upstream Qualcomm source, so 
that the next import does not revert it?  Anyway,

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

r~