Re: [qemu-s390x] [Qemu-devel] [PATCH v1 13/41] s390x/tcg: Implement VECT

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Re: [qemu-s390x] [Qemu-devel] [PATCH v1 13/41] s390x/tcg: Implement VECT

From:	Richard Henderson
Subject:	Re: [qemu-s390x] [Qemu-devel] [PATCH v1 13/41] s390x/tcg: Implement VECTOR COUNT TRAILING ZEROS
Date:	Fri, 12 Apr 2019 13:23:17 -1000
User-agent:	Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1

On 4/11/19 12:08 AM, David Hildenbrand wrote:
> +        s390_vec_write_element##BITS(v1, i, ctz32(a));                       
>   

Wrong result for a == 0.  You need a ? ctz32(a) : BITS.


r~

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[qemu-s390x] [PATCH v1 19/41] s390x/tcg: Implement VECTOR MULTIPLY AND ADD *, (continued)
- [qemu-s390x] [PATCH v1 19/41] s390x/tcg: Implement VECTOR MULTIPLY AND ADD *, David Hildenbrand, 2019/04/11
  - Re: [qemu-s390x] [Qemu-devel] [PATCH v1 19/41] s390x/tcg: Implement VECTOR MULTIPLY AND ADD *, Richard Henderson, 2019/04/12
- [qemu-s390x] [PATCH v1 14/41] s390x/tcg: Implement VECTOR EXCLUSIVE OR, David Hildenbrand, 2019/04/11
  - Re: [qemu-s390x] [Qemu-devel] [PATCH v1 14/41] s390x/tcg: Implement VECTOR EXCLUSIVE OR, Richard Henderson, 2019/04/12
- [qemu-s390x] [PATCH v1 06/41] s390x/tcg: Implement VECTOR AND (WITH COMPLEMENT), David Hildenbrand, 2019/04/11
  - Re: [qemu-s390x] [Qemu-devel] [PATCH v1 06/41] s390x/tcg: Implement VECTOR AND (WITH COMPLEMENT), Richard Henderson, 2019/04/12
- [qemu-s390x] [PATCH v1 15/41] s390x/tcg: Implement VECTOR GALOIS FIELD MULTIPLY SUM (AND ACCUMULATE), David Hildenbrand, 2019/04/11
  - Re: [qemu-s390x] [Qemu-devel] [PATCH v1 15/41] s390x/tcg: Implement VECTOR GALOIS FIELD MULTIPLY SUM (AND ACCUMULATE), Richard Henderson, 2019/04/12
    - Re: [qemu-s390x] [Qemu-devel] [PATCH v1 15/41] s390x/tcg: Implement VECTOR GALOIS FIELD MULTIPLY SUM (AND ACCUMULATE), David Hildenbrand, 2019/04/16
- [qemu-s390x] [PATCH v1 13/41] s390x/tcg: Implement VECTOR COUNT TRAILING ZEROS, David Hildenbrand, 2019/04/11
  - Re: [qemu-s390x] [Qemu-devel] [PATCH v1 13/41] s390x/tcg: Implement VECTOR COUNT TRAILING ZEROS, Richard Henderson <=
    - Re: [qemu-s390x] [Qemu-devel] [PATCH v1 13/41] s390x/tcg: Implement VECTOR COUNT TRAILING ZEROS, David Hildenbrand, 2019/04/16
- [qemu-s390x] [PATCH v1 12/41] s390x/tcg: Implement VECTOR COUNT LEADING ZEROS, David Hildenbrand, 2019/04/11
  - Re: [qemu-s390x] [Qemu-devel] [PATCH v1 12/41] s390x/tcg: Implement VECTOR COUNT LEADING ZEROS, Richard Henderson, 2019/04/12
- [qemu-s390x] [PATCH v1 10/41] s390x/tcg: Implement VECTOR ELEMENT COMPARE *, David Hildenbrand, 2019/04/11
  - Re: [qemu-s390x] [Qemu-devel] [PATCH v1 10/41] s390x/tcg: Implement VECTOR ELEMENT COMPARE *, Richard Henderson, 2019/04/12
    - Re: [qemu-s390x] [Qemu-devel] [PATCH v1 10/41] s390x/tcg: Implement VECTOR ELEMENT COMPARE *, David Hildenbrand, 2019/04/16
- [qemu-s390x] [PATCH v1 01/41] tcg: Implement tcg_gen_gvec_3i(), David Hildenbrand, 2019/04/11
- [qemu-s390x] [PATCH v1 11/41] s390x/tcg: Implement VECTOR COMPARE *, David Hildenbrand, 2019/04/11
  - Re: [qemu-s390x] [Qemu-devel] [PATCH v1 11/41] s390x/tcg: Implement VECTOR COMPARE *, Richard Henderson, 2019/04/12
- [qemu-s390x] [PATCH v1 05/41] s390x/tcg: Implement VECTOR ADD WITH CARRY COMPUTE CARRY, David Hildenbrand, 2019/04/11

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