amehsan closed this revision.
amehsan added a comment.
https://reviews.llvm.org/rL287872
https://reviews.llvm.org/D26544
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kbarton accepted this revision.
kbarton added a comment.
This revision is now accepted and ready to land.
LGTM
https://reviews.llvm.org/D26544
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amehsan updated the summary for this revision.
amehsan updated this revision to Diff 78376.
https://reviews.llvm.org/D26544
Files:
lib/Headers/altivec.h
test/CodeGen/builtins-ppc-altivec.c
test/CodeGen/builtins-ppc-p8vector.c
test/CodeGen/builtins-ppc-quadword.c
test/CodeGen/builtins-pp
amehsan added inline comments.
Comment at: lib/Headers/altivec.h:350
+__tempc = __tempc & 0x0001;
+unsigned long long __longa = (unsigned long long) __tempa;
+unsigned long long __longb = (unsigned long long) __tempb;
kbarton wrote:
> nemanjai wro
kbarton added a comment.
There are several inline comments that need to be addressed.
I also think it's worthwhile putting a comment at the top of the review
indicating the (assumed) semantics for the vec_sube and vec_subec instructions
that are being implemented (i.e., the behaviour mimics the
nemanjai added inline comments.
Comment at: lib/Headers/altivec.h:314
+ vector signed int __carry = __c & __mask;
+ return vec_add(vec_add(__a, __b), __mask);
+}
I don't understand why we're adding `__mask` to the sum of `__a` and `__b`.
Shouldn't that be `__c
amehsan created this revision.
amehsan added reviewers: kbarton, nemanjai, sfertile, jtony, hfinkel, syzaara,
lei.
amehsan added subscribers: cfe-commits, echristo.
This includes various overloads of the following builtins:
- vec_neg
- vec_nabs
- vec_adde
- vec_addec
- vec_sube
- vec_subec
- vec
