derek.holloway
7502bf64a4
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106 lines
3.8 KiB
LLVM
106 lines
3.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
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; RUN: llc -mtriple=sparc -relocation-model=pic < %s | FileCheck --check-prefix=SPARC %s
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; RUN: llc -mtriple=sparc64 -relocation-model=pic < %s | FileCheck --check-prefix=SPARC64 %s
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@x = external thread_local global i8
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;; Test that we don't over-allocate stack space when calling __tls_get_addr
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;; with the call frame pseudos able to be eliminated.
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define ptr @no_alloca() nounwind {
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; SPARC-LABEL: no_alloca:
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; SPARC: ! %bb.0: ! %entry
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; SPARC-NEXT: save %sp, -96, %sp
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; SPARC-NEXT: .Ltmp0:
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; SPARC-NEXT: call .Ltmp1
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; SPARC-NEXT: .Ltmp2:
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; SPARC-NEXT: sethi %hi(_GLOBAL_OFFSET_TABLE_+(.Ltmp2-.Ltmp0)), %i0
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; SPARC-NEXT: .Ltmp1:
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; SPARC-NEXT: or %i0, %lo(_GLOBAL_OFFSET_TABLE_+(.Ltmp1-.Ltmp0)), %i0
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; SPARC-NEXT: add %i0, %o7, %i0
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; SPARC-NEXT: sethi %tgd_hi22(x), %i1
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; SPARC-NEXT: add %i1, %tgd_lo10(x), %i1
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; SPARC-NEXT: add %i0, %i1, %o0, %tgd_add(x)
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; SPARC-NEXT: call __tls_get_addr, %tgd_call(x)
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; SPARC-NEXT: nop
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; SPARC-NEXT: ret
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; SPARC-NEXT: restore %g0, %o0, %o0
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;
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; SPARC64-LABEL: no_alloca:
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; SPARC64: ! %bb.0: ! %entry
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; SPARC64-NEXT: save %sp, -128, %sp
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; SPARC64-NEXT: .Ltmp0:
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; SPARC64-NEXT: rd %pc, %o7
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; SPARC64-NEXT: .Ltmp2:
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; SPARC64-NEXT: sethi %hi(_GLOBAL_OFFSET_TABLE_+(.Ltmp2-.Ltmp0)), %i0
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; SPARC64-NEXT: .Ltmp1:
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; SPARC64-NEXT: or %i0, %lo(_GLOBAL_OFFSET_TABLE_+(.Ltmp1-.Ltmp0)), %i0
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; SPARC64-NEXT: add %i0, %o7, %i0
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; SPARC64-NEXT: sethi %tgd_hi22(x), %i1
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; SPARC64-NEXT: add %i1, %tgd_lo10(x), %i1
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; SPARC64-NEXT: add %i0, %i1, %o0, %tgd_add(x)
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; SPARC64-NEXT: call __tls_get_addr, %tgd_call(x)
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; SPARC64-NEXT: nop
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; SPARC64-NEXT: ret
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; SPARC64-NEXT: restore %g0, %o0, %o0
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entry:
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%0 = call ptr @llvm.threadlocal.address.p0(ptr @x)
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ret ptr %0
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}
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;; Test that %sp is valid for the call to __tls_get_addr. We store to a dynamic
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;; alloca in order to prevent eliminating any call frame pseudos from the call.
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define ptr @dynamic_alloca(i64 %n) nounwind {
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; SPARC-LABEL: dynamic_alloca:
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; SPARC: ! %bb.0: ! %entry
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; SPARC-NEXT: save %sp, -96, %sp
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; SPARC-NEXT: .Ltmp3:
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; SPARC-NEXT: call .Ltmp4
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; SPARC-NEXT: .Ltmp5:
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; SPARC-NEXT: sethi %hi(_GLOBAL_OFFSET_TABLE_+(.Ltmp5-.Ltmp3)), %i0
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; SPARC-NEXT: .Ltmp4:
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; SPARC-NEXT: or %i0, %lo(_GLOBAL_OFFSET_TABLE_+(.Ltmp4-.Ltmp3)), %i0
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; SPARC-NEXT: add %i0, %o7, %i0
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; SPARC-NEXT: sethi %tgd_hi22(x), %i2
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; SPARC-NEXT: add %i2, %tgd_lo10(x), %i2
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; SPARC-NEXT: add %i0, %i2, %o0, %tgd_add(x)
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; SPARC-NEXT: call __tls_get_addr, %tgd_call(x)
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; SPARC-NEXT: nop
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; SPARC-NEXT: add %i1, 7, %i0
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; SPARC-NEXT: and %i0, -8, %i0
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; SPARC-NEXT: sub %sp, %i0, %i0
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; SPARC-NEXT: add %i0, -8, %sp
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; SPARC-NEXT: mov 1, %i1
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; SPARC-NEXT: stb %i1, [%i0+88]
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; SPARC-NEXT: ret
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; SPARC-NEXT: restore %g0, %o0, %o0
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;
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; SPARC64-LABEL: dynamic_alloca:
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; SPARC64: ! %bb.0: ! %entry
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; SPARC64-NEXT: save %sp, -128, %sp
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; SPARC64-NEXT: .Ltmp3:
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; SPARC64-NEXT: rd %pc, %o7
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; SPARC64-NEXT: .Ltmp5:
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; SPARC64-NEXT: sethi %hi(_GLOBAL_OFFSET_TABLE_+(.Ltmp5-.Ltmp3)), %i1
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; SPARC64-NEXT: .Ltmp4:
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; SPARC64-NEXT: or %i1, %lo(_GLOBAL_OFFSET_TABLE_+(.Ltmp4-.Ltmp3)), %i1
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; SPARC64-NEXT: add %i1, %o7, %i1
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; SPARC64-NEXT: sethi %tgd_hi22(x), %i2
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; SPARC64-NEXT: add %i2, %tgd_lo10(x), %i2
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; SPARC64-NEXT: add %i1, %i2, %o0, %tgd_add(x)
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; SPARC64-NEXT: call __tls_get_addr, %tgd_call(x)
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; SPARC64-NEXT: nop
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; SPARC64-NEXT: add %i0, 15, %i0
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; SPARC64-NEXT: and %i0, -16, %i0
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; SPARC64-NEXT: sub %sp, %i0, %i0
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; SPARC64-NEXT: mov %i0, %sp
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; SPARC64-NEXT: mov 1, %i1
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; SPARC64-NEXT: stb %i1, [%i0+2175]
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; SPARC64-NEXT: ret
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; SPARC64-NEXT: restore %g0, %o0, %o0
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entry:
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%0 = call ptr @llvm.threadlocal.address.p0(ptr @x)
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%1 = alloca i8, i64 %n
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store i8 1, ptr %1
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ret ptr %0
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}
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