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c21e3b3ce1
are targeting an ELF platform. Only fold gs-relative (and fs-relative) loads if it is actually sensible to do so for the target platform. This fixes PR13438. llvm-svn: 160687
21 lines
888 B
LLVM
21 lines
888 B
LLVM
; RUN: llc < %s -mtriple=x86_64-unknown-freebsd | FileCheck %s --check-prefix=CHECK-FBSD
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; RUN: llc < %s -mtriple=x86_64-unknown-linux | FileCheck %s --check-prefix=CHECK-LINUX
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
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%struct.thread = type { i32, i32, i32, i32 }
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define i32 @test() nounwind uwtable {
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entry:
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%0 = load volatile %struct.thread* addrspace(256)* null
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%c = getelementptr inbounds %struct.thread* %0, i64 0, i32 2
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%1 = load i32* %c, align 4
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ret i32 %1
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}
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; Check that we are not assuming that gs contains the address of gs if we are not targeting Linux
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; CHECK-FBSD: movq %gs:0, %rax
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; CHECK-FBSD: movl 8(%rax), %eax
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; Check that we are assuming that gs contains the address of gs if we are targeting Linux
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; CHECK-LINUX: movl %gs:8, %eax
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