2262b04cab
They are currently implicit because TargetMachine::shouldAssumeDSOLocal implies dso_local. For external data, clang -fno-pic emits the dso_local specifier for ELF and non-MinGW COFF. Adding explicit dso_local makes these tests in align with the clang behavior and helps implementing an option to use GOT indirection for external data access in -fno-pic mode (to avoid copy relocations).
43 lines
1007 B
LLVM
43 lines
1007 B
LLVM
; RUN: llc < %s -march=xcore | FileCheck %s
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@a = external dso_local constant [0 x i32], section ".cp.rodata"
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@b = external dso_local global [0 x i32]
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define i32 *@f1() nounwind {
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entry:
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; CHECK-LABEL: f1:
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; CHECK: ldaw r11, cp[a+4]
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; CHECK: mov r0, r11
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%0 = getelementptr [0 x i32], [0 x i32]* @a, i32 0, i32 1
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ret i32* %0
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}
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define i32 *@f2() nounwind {
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entry:
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; CHECK-LABEL: f2:
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; CHECK: ldaw r0, dp[b+4]
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%0 = getelementptr [0 x i32], [0 x i32]* @b, i32 0, i32 1
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ret i32* %0
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}
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; Don't fold negative offsets into cp / dp accesses to avoid a relocation
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; error if the address + addend is less than the start of the cp / dp.
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define i32 *@f3() nounwind {
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entry:
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; CHECK-LABEL: f3:
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; CHECK: ldaw r11, cp[a]
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; CHECK: sub r0, r11, 4
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%0 = getelementptr [0 x i32], [0 x i32]* @a, i32 0, i32 -1
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ret i32* %0
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}
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define i32 *@f4() nounwind {
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entry:
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; CHECK-LABEL: f4:
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; CHECK: ldaw [[REG:r[0-9]+]], dp[b]
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; CHECK: sub r0, [[REG]], 4
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%0 = getelementptr [0 x i32], [0 x i32]* @b, i32 0, i32 -1
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ret i32* %0
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}
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