31 lines
964 B
LLVM
31 lines
964 B
LLVM
; RUN: llc -mtriple thumbv6m-eabi %s -o - | FileCheck %s
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; RUN: llc -mtriple thumbv8m.base-eabi %s -o - | FileCheck %s
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; RUN: llc -mtriple thumbv7a-eabi %s -o - | FileCheck %s
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; RUN: llc -mtriple thumbv7m-eabi %s -o - | FileCheck %s --check-prefix=CHECK-PACBTI
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; Check we don't emit PACBTI-M instructions for architectures
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; that do not support them.
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define hidden i32 @f(i32 %x) #0 {
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entry:
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%x.addr = alloca i32, align 4
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store i32 %x, ptr %x.addr, align 4
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%0 = load i32, ptr %x.addr, align 4
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%sub = sub nsw i32 1, %0
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%call = call i32 @g(i32 %sub)
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%add = add nsw i32 1, %call
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ret i32 %add
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}
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; CHECK-LABEL: f:
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; CHECK-NOT: bti
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; CHECK-PACBTI-LABEL: f:
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; CHECK-PACBTI: pacbti
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declare dso_local i32 @g(i32)
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attributes #0 = { noinline nounwind }
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!llvm.module.flags = !{!0, !1, !2}
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!0 = !{i32 8, !"branch-target-enforcement", i32 1}
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!1 = !{i32 8, !"sign-return-address", i32 1}
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!2 = !{i32 8, !"sign-return-address-all", i32 0}
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