https://bugs.llvm.org/show_bug.cgi?id=41523
Bug ID: 41523
Summary: [llvm-mca] Add support for nested and overlapping
region markers
Product: tools
Version: trunk
Hardware: PC
OS: Windows NT
Status: NEW
Severity: enhancement
Priority: P
Component: llvm-mca
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected],
[email protected]
We sometimes want to analyze codegen in multiple regions, it'd be useful if we
could nest and overlap region markers to support this:
testloop:
# LLVM-MCA-BEGIN outer
leal 42(%rdi), %eax
# LLVM-MCA-BEGIN inner
imull %esi, %eax
# LLVM-MCA-END inner
leal 42(%rdi), %eax
# LLVM-MCA-END outer
imull %esi, %eax
testloop:
# LLVM-MCA-BEGIN upper
leal 42(%rdi), %eax
# LLVM-MCA-BEGIN lower
imull %esi, %eax
# LLVM-MCA-END upper
leal 42(%rdi), %eax
# LLVM-MCA-END lower
imull %esi, %eax
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