arm_biquad_cascade_df1_32x64_q31: asrl(val, -shift) -> lsll(val, shift)

This code was using asrl with an intentionally negative value. GCC 14
doesn't turn that into a left shift, instead it produces 0 for the
result.

Use lsll instead to get the desired result.

Signed-off-by: Keith Packard <[email protected]>

Author: keith-packard

Source/FilteringFunctions/arm_biquad_cascade_df1_32x64_q31.c

@@ -354,7 +354,7 @@ ARM_DSP_ATTRIBUTE void arm_biquad_cas_df1_32x64_q31(
               vecIn = vld1q(pIn1);
               pIn1 += 1;
               Yn1 = vmlaldavaq(Yn1, vecIn, vecCoef);
-              Yn1 = asrl(Yn1, -shift);
+              Yn1 = lsll(Yn1, shift);
               /*
                * Store the output in the destination buffer in 1.31 format.
                */
@@ -376,7 +376,7 @@ ARM_DSP_ATTRIBUTE void arm_biquad_cas_df1_32x64_q31(
               Yn1 = vmlaldavaq(Yn1, vecIn0, vecCoef);
               vecIn = vld1q(pIn1);
               pIn1 += 1;
-              Yn1 = asrl(Yn1, -shift);
+              Yn1 = lsll(Yn1, shift);
               /*
                * Store the output in the destination buffer in 1.31 format.
                */
@@ -389,7 +389,7 @@ ARM_DSP_ATTRIBUTE void arm_biquad_cas_df1_32x64_q31(
               Yn1 = vmlaldavaq(Yn1, vecIn1, vecCoef);
               vecIn0 = vld1q(pIn1);
               pIn1 += 1;
-              Yn1 = asrl(Yn1, -shift);
+              Yn1 = lsll(Yn1, shift);
               *pOut++ = (q31_t) (Yn1 >> 32);
 
               acc = mult32x64(Yn1, a1);
@@ -399,7 +399,7 @@ ARM_DSP_ATTRIBUTE void arm_biquad_cas_df1_32x64_q31(
               Yn1 = vmlaldavaq(Yn1, vecIn2, vecCoef);
               vecIn1 = vld1q(pIn1);
               pIn1 += 1;
-              Yn1 = asrl(Yn1, -shift);
+              Yn1 = lsll(Yn1, shift);
               *pOut++ = (q31_t) (Yn1 >> 32);
 
               acc = mult32x64(Yn1, a1);
@@ -409,7 +409,7 @@ ARM_DSP_ATTRIBUTE void arm_biquad_cas_df1_32x64_q31(
               Yn1 = vmlaldavaq(Yn1, vecIn, vecCoef);
               vecIn2 = vld1q(pIn1);
               pIn1 += 1;
-              Yn1 = asrl(Yn1, -shift);
+              Yn1 = lsll(Yn1, shift);
               *pOut++ = (q31_t) (Yn1 >> 32);
               /*
                * Decrement the loop counter
@@ -433,7 +433,7 @@ ARM_DSP_ATTRIBUTE void arm_biquad_cas_df1_32x64_q31(
               Yn2 = Yn1;
               Yn1 = acc;
               Yn1 = vmlaldavaq(Yn1, vecIn0, vecCoef);
-              Yn1 = asrl(Yn1, -shift);
+              Yn1 = lsll(Yn1, shift);
               *pOut++ = (q31_t) (Yn1 >> 32);
               /*
                * save input state
@@ -449,15 +449,15 @@ ARM_DSP_ATTRIBUTE void arm_biquad_cas_df1_32x64_q31(
               Yn2 = Yn1;
               Yn1 = acc;
               Yn1 = vmlaldavaq(Yn1, vecIn0, vecCoef);
-              Yn1 = asrl(Yn1, -shift);
+              Yn1 = lsll(Yn1, shift);
               *pOut++ = (q31_t) (Yn1 >> 32);
 
               acc = mult32x64(Yn1, a1);
               acc += mult32x64(Yn2, a2);
               Yn2 = Yn1;
               Yn1 = acc;
               Yn1 = vmlaldavaq(Yn1, vecIn1, vecCoef);
-              Yn1 = asrl(Yn1, -shift);
+              Yn1 = lsll(Yn1, shift);
               *pOut++ = (q31_t) (Yn1 >> 32);
               /*
                * save input state
@@ -473,23 +473,23 @@ ARM_DSP_ATTRIBUTE void arm_biquad_cas_df1_32x64_q31(
               Yn2 = Yn1;
               Yn1 = acc;
               Yn1 = vmlaldavaq(Yn1, vecIn0, vecCoef);
-              Yn1 = asrl(Yn1, -shift);
+              Yn1 = lsll(Yn1, shift);
               *pOut++ = (q31_t) (Yn1 >> 32);
 
               acc = mult32x64(Yn1, a1);
               acc += mult32x64(Yn2, a2);
               Yn2 = Yn1;
               Yn1 = acc;
               Yn1 = vmlaldavaq(Yn1, vecIn1, vecCoef);
-              Yn1 = asrl(Yn1, -shift);
+              Yn1 = lsll(Yn1, shift);
               *pOut++ = (q31_t) (Yn1 >> 32);
 
               acc = mult32x64(Yn1, a1);
               acc += mult32x64(Yn2, a2);
               Yn2 = Yn1;
               Yn1 = acc;
               Yn1 = vmlaldavaq(Yn1, vecIn2, vecCoef);
-              Yn1 = asrl(Yn1, -shift);
+              Yn1 = lsll(Yn1, shift);
               *pOut++ = (q31_t) (Yn1 >> 32);
               /*
                * save input state