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c5a2c81f7e
-- This patch enables LLVM to emit Win64-native unwind info rather than DWARF CFI. It handles all corner cases (I hope), including stack realignment. Because the unwind info is not flexible enough to describe stack frames with a gap of unknown size in the middle, such as the one caused by stack realignment, I modified register spilling code to place all spills into the fixed frame slots, so that they can be accessed relative to the frame pointer. Patch by Vadim Chugunov! Reviewed By: rnk Differential Revision: http://reviews.llvm.org/D4081 llvm-svn: 211691
11 lines
318 B
LLVM
11 lines
318 B
LLVM
; RUN: llc -mcpu=generic -mtriple=x86_64-mingw32 < %s | FileCheck %s
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; CHECK: subq $40, %rsp
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; CHECK: movaps %xmm8, 16(%rsp)
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; CHECK: movaps %xmm7, (%rsp)
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define i32 @a() nounwind {
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entry:
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tail call void asm sideeffect "", "~{xmm7},~{xmm8},~{dirflag},~{fpsr},~{flags}"() nounwind
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ret i32 undef
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}
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