[Bug tree-optimization/102971] New: GCC cannot understand >>32 pattern
unlvsur at live dot com
gcc-bugzilla@gcc.gnu.org
Wed Oct 27 20:29:19 GMT 2021
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102971
Bug ID: 102971
Summary: GCC cannot understand >>32 pattern
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: unlvsur at live dot com
Target Milestone: ---
https://godbolt.org/z/eeG8fnY1z
I want to seperate a uint_least64_t to 2x uint_least32_t or merge 2x
uint_least32_t to uint_least64_t. GCC just cannot understand the pattern at all
here.
The assembly it generates is very bad for things like this.
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