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3013a20684
This is a bit of a hack to make inline asm look more like call instructions. It would be better to produce correct dead flags during isel. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105749 91177308-0d34-0410-b5e6-96231b3b80d8
18 lines
1.1 KiB
LLVM
18 lines
1.1 KiB
LLVM
; RUN: llc < %s -O0 -disable-fp-elim -relocation-model=pic
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; PR7313
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;
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; The inline asm in this function clobbers almost all allocatable registers.
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; Make sure that the register allocator recovers.
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;
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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"
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target triple = "x86_64-unknown-linux-gnu"
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declare void @snapshot()
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define void @test_too_many_longs() nounwind {
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entry:
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call void asm sideeffect "xor %rax, %rax\0A\09xor %rbx, %rbx\0A\09xor %rcx, %rcx\0A\09xor %rdx, %rdx\0A\09xor %rsi, %rsi\0A\09xor %rdi, %rdi\0A\09xor %r8, %r8\0A\09xor %r9, %r9\0A\09xor %r10, %r10\0A\09xor %r11, %r11\0A\09xor %r12, %r12\0A\09xor %r13, %r13\0A\09xor %r14, %r14\0A\09xor %r15, %r15\0A\09", "~{fpsr},~{flags},~{r15},~{r14},~{r13},~{r12},~{r11},~{r10},~{r9},~{r8},~{rdi},~{rsi},~{rdx},~{rcx},~{rbx},~{rax}"() nounwind
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call void bitcast (void ()* @snapshot to void (i64, i64, i64, i64, i64, i64, i64, i64, i64, i64, i64, i64)*)(i64 32, i64 33, i64 34, i64 35, i64 36, i64 37, i64 38, i64 39, i64 40, i64 41, i64 42, i64 43) nounwind
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ret void
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}
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