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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

29 lines
784 B
LLVM

; RUN: llc -mtriple=hexagon < %s | FileCheck %s
; Check that the load/store to the volatile stack object has not been
; optimized away.
target triple = "hexagon"
; CHECK-LABEL: foo
; CHECK: memw(r29+#4) =
; CHECK: = memw(r29+#4)
define i32 @foo(i32 %a) #0 {
entry:
%x = alloca i32, align 4
call void @llvm.lifetime.start.p0(i64 4, ptr %x)
store volatile i32 0, ptr %x, align 4
%call = tail call i32 @bar() #0
%x.0.x.0. = load volatile i32, ptr %x, align 4
%add = add nsw i32 %x.0.x.0., %a
call void @llvm.lifetime.end.p0(i64 4, ptr %x)
ret i32 %add
}
declare void @llvm.lifetime.start.p0(i64, ptr nocapture) #1
declare void @llvm.lifetime.end.p0(i64, ptr nocapture) #1
declare i32 @bar(...) #0
attributes #0 = { nounwind }
attributes #1 = { argmemonly nounwind }