https://bugs.llvm.org/show_bug.cgi?id=44246
Bug ID: 44246
Summary: [AArch64] strict_align not respected by GlobalISel
Product: libraries
Version: 9.0
Hardware: All
OS: All
Status: NEW
Severity: enhancement
Priority: P
Component: Backend: AArch64
Assignee: unassignedb...@nondot.org
Reporter: nikita....@gmail.com
CC: arnaud.degrandmai...@arm.com,
llvm-bugs@lists.llvm.org, peter.sm...@linaro.org,
ties.st...@arm.com
Originally reported at: https://github.com/rust-lang/rust/issues/66897
Running
target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
target triple = "aarch64-unknown-linux-gnu"
define i64 @test(i64* %p) #0 {
%x = load i64, i64* %p, align 1
ret i64 %x
}
attributes #0 = { "target-features"="+strict-align" }
through llc -O0 results in:
ldr x0, [x0]
ret
Which violates strict-align. Passing -global-isel=false avoids the issue.
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