55 lines
1.1 KiB
LLVM
55 lines
1.1 KiB
LLVM
; RUN: llc -relocation-model=pic -mtriple=thumbv7-unknown-linux -o - %s | FileCheck %s
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@x = external global i32
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; CHECK: .globl foo
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; CHECK-NEXT: .p2align 2
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define i32* @foo() {
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ret i32* @x
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}
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; CHECK: .globl bar
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; CHECK-NEXT: .p2align 1
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define i32* @bar() {
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ret i32* zeroinitializer
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}
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@a = external global i32
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@b = external global i32
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@c = external global i32
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@d = external global i32
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; Create a Thumb-2 jump table, which should force alignment to 4 bytes.
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; CHECK: .globl baz
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; CHECK-NEXT: .p2align 2
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; CHECK: tbb
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define i32 @baz() {
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%1 = load i32, i32* @c, align 4
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switch i32 %1, label %7 [
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i32 1, label %2
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i32 4, label %5
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i32 9, label %5
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i32 3, label %8
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]
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; <label>:2
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%3 = load i32, i32* @a, align 4
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%4 = tail call i32 bitcast (i32 (...)* @fn2 to i32 (i32 (...)*, i32, i32)*)(i32 (...)* bitcast (i32 ()* @baz to i32 (...)*), i32 0, i32 %3) #2
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br label %8
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; <label>:5
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%6 = load i32, i32* @d, align 4
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store i32 %6, i32* @b, align 4
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br label %8
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; <label>:7
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br label %8
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; <label>:8
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%e.0 = phi i32 [ 1, %7 ], [ 1, %2 ], [ 0, %0 ], [ 0, %5 ]
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ret i32 %e.0
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}
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declare i32 @fn2(...)
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