https://llvm.org/bugs/show_bug.cgi?id=24340
Bug ID: 24340
Summary: T1 instructions not printed correctly inside IT blocks
Product: libraries
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: normal
Priority: P
Component: Backend: ARM
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
Thumb1 instructions such as "rsbs" are written differently when inside IT
blocks to reflect their change in semantics, according to the ARMARM.
When inside an IT block, these instructions don't set the flags. The ARMARM
says (v7-M ARMARM, A7.7.117:
RSBS <Rd>,<Rn>,#0 Outside IT block.
RSB<c> <Rd>,<Rn>,#0 Inside IT block.
LLVM does not currently model this.
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