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f4a03e0903
Support lowering AEABI TLS access (__aeabi_read_tp) with long calls. This requires adjusting the call sequence to use an indirect call to get full addressability. Resolves PR31769! llvm-svn: 293433
27 lines
1.1 KiB
LLVM
27 lines
1.1 KiB
LLVM
; RUN: llc -mtriple armv7---eabi -filetype asm -o - %s | FileCheck %s -check-prefix CHECK -check-prefix CHECK-SHORT
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; RUN: llc -mtriple thumbv7---eabi -filetype asm -o - %s | FileCheck %s -check-prefix CHECK -check-prefix CHECK-SHORT
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; RUN: llc -mtriple armv7---eabi -mattr=+long-calls -filetype asm -o - %s | FileCheck %s -check-prefix CHECK -check-prefix CHECK-LONG
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; RUN: llc -mtriple thumbv7---eabi -mattr=+long-calls -filetype asm -o - %s | FileCheck %s -check-prefix CHECK -check-prefix CHECK-LONG
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@i = thread_local local_unnamed_addr global i32 0, align 4
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define i32 @f() local_unnamed_addr {
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entry:
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%0 = load i32, i32* @i, align 4
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ret i32 %0
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}
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; CHECK-LABEL: f:
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; CHECK-SHORT: ldr r1, [[VAR:.LCPI[0-9]+_[0-9]+]]
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; CHECK-SHORT-NEXT: bl __aeabi_read_tp
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; CHECK-SHORT: [[VAR]]:
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; CHECK-SHORT-NEXT: .long i(TPOFF)
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; CHECK-LONG: ldr [[REG:r[0-9]+]], [[FUN:.LCPI[0-9]+_[0-9]+]]
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; CHECK-LONG-NEXT: ldr r1, [[VAR:.LCPI[0-9]+_[0-9]+]]
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; CHECK-LONG-NEXT: blx [[REG]]
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; CHECK-LONG: [[VAR]]:
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; CHECK-LONG-NEXT: .long i(TPOFF)
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; CHECK-LONG: [[FUN]]:
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; CHECK-LONG-NEXT: .long __aeabi_read_tp
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