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2d977c839d
Add tests for this particular detail for x86 and arm (similar tests already existed for x86_64 and aarch64). The libssp implementation may be located in a separate DLL, and in those cases, the references need to be in a .refptr stub, to avoid needing to touch up code in the text section at runtime (which is supported but inefficient for x86, and unsupported for arm). Differential Revision: https://reviews.llvm.org/D92738
24 lines
805 B
LLVM
24 lines
805 B
LLVM
; RUN: llc -mtriple=thumbv7-w64-mingw32 < %s -o - | FileCheck --check-prefix=MINGW %s
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declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture)
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declare dso_local void @other(i8*)
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declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture)
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define dso_local void @func() sspstrong {
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entry:
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; MINGW-LABEL: func:
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; MINGW: movw [[REG:r[0-9]+]], :lower16:.refptr.__stack_chk_guard
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; MINGW: movt [[REG]], :upper16:.refptr.__stack_chk_guard
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; MINGW: ldr [[REG2:r[0-9]+]], {{\[}}[[REG]]]
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; MINGW: ldr {{r[0-9]+}}, {{\[}}[[REG2]]]
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; MINGW: bl other
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; MINGW: ldr {{r[0-9]+}}, {{\[}}[[REG2]]]
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; MINGW: bl __stack_chk_fail
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%c = alloca i8, align 1
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call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull %c)
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call void @other(i8* nonnull %c)
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call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull %c)
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ret void
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}
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