82 lines
2.5 KiB
LLVM
82 lines
2.5 KiB
LLVM
; RUN: llc -mtriple=thumbv7m-eabi %s -o - | FileCheck %s
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; See bti-outliner-1.ll
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; Difference is the BTI placement is enabled by default for the entire module.
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@a = hidden global i32 0, align 4
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@b = hidden global i32 0, align 4
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@c = hidden global i32 0, align 4
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@d = hidden global i32 0, align 4
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@e = hidden global i32 0, align 4
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@f = hidden global i32 0, align 4
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define hidden i32 @x(i32 %p) local_unnamed_addr #0 {
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entry:
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%0 = load volatile i32, ptr @a, align 4
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%1 = load volatile i32, ptr @b, align 4
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%add = add nsw i32 %1, %0
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%2 = load volatile i32, ptr @c, align 4
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%3 = load volatile i32, ptr @d, align 4
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%add1 = add nsw i32 %3, %2
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%div = sdiv i32 %add, %add1
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%4 = load volatile i32, ptr @e, align 4
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%mul = mul nsw i32 %4, %div
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%5 = load volatile i32, ptr @f, align 4
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%add2 = add nsw i32 %mul, %5
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%add3 = add nsw i32 %add2, 1
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ret i32 %add3
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}
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; CHECK-LABEL: x:
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; CHECK: bti
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; CHECK: bl OUTLINED_FUNCTION_0
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define hidden i32 @y(i32 %p) local_unnamed_addr #1 {
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entry:
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%0 = load volatile i32, ptr @a, align 4
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%1 = load volatile i32, ptr @b, align 4
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%add = add nsw i32 %1, %0
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%2 = load volatile i32, ptr @c, align 4
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%3 = load volatile i32, ptr @d, align 4
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%add1 = add nsw i32 %3, %2
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%div = sdiv i32 %add, %add1
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%4 = load volatile i32, ptr @e, align 4
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%mul = mul nsw i32 %4, %div
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%5 = load volatile i32, ptr @f, align 4
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%add2 = add nsw i32 %mul, %5
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%add3 = add nsw i32 %add2, 2
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ret i32 %add3
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}
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; CHECK-LABEL: y:
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; CHECK-NOT: bti
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; CHECK-NOT: bl OUTLINED_FUNCTION
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define hidden i32 @z(i32 %p) local_unnamed_addr #2 {
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entry:
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%0 = load volatile i32, ptr @a, align 4
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%1 = load volatile i32, ptr @b, align 4
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%add = add nsw i32 %1, %0
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%2 = load volatile i32, ptr @c, align 4
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%3 = load volatile i32, ptr @d, align 4
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%add1 = add nsw i32 %3, %2
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%div = sdiv i32 %add, %add1
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%4 = load volatile i32, ptr @e, align 4
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%mul = mul nsw i32 %4, %div
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%5 = load volatile i32, ptr @f, align 4
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%add2 = add nsw i32 %mul, %5
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%add3 = add nsw i32 %add2, 3
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ret i32 %add3
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}
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; CHECK-LABEL: z:
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; CHECK: bti
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; CHECK: bl OUTLINED_FUNCTION_0
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; CHECK-LABEL: OUTLINED_FUNCTION_0:
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; CHECK: bti
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attributes #0 = { minsize nofree norecurse nounwind optsize }
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attributes #1 = { minsize nofree norecurse nounwind optsize "branch-target-enforcement"="false" }
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attributes #2 = { minsize nofree norecurse nounwind optsize "branch-target-enforcement"="true" }
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!llvm.module.flags = !{!0}
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!0 = !{i32 8, !"branch-target-enforcement", i32 1}
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