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Author SHA1 Message Date
Bevin Hansson fefa34faf5 [CodeGen] Use the common semantic for fixed-point codegen, not the result semantic. 
Summary:
Using the result semantic is wrong in some cases, such as
unsigned fixed-point + signed integer. In this case, the
result semantic is unsigned and the common semantic is
signed.

Reviewers: leonardchan

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D82662
 2020-06-29 16:22:29 +02:00
Bevin Hansson eccf7fc7b3 [AST] Add fixed-point subtraction constant evaluation. 
Reviewers: rjmccall, leonardchan

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D73185
 2020-06-26 13:38:11 +02:00
Leonard Chan 837da5d3ec [Fixed Point Arithmetic] Fixed Point Subtraction 
This patch covers subtraction between fixed point types and other fixed point
types or integers, using the conversion rules described in 4.1.4 of N1169.

Differential Revision: https://reviews.llvm.org/D55844

llvm-svn: 351371
 2019-01-16 19:53:50 +00:00