60 lines
1.6 KiB
LLVM
60 lines
1.6 KiB
LLVM
; RUN: llc -O0 -frame-pointer=all < %s | FileCheck %s
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; Check that CFI instructions are generated properly when
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; a frame pointer, variable length array and callee-saved
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; registers are all present at the same time
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target datalayout = "e-m:e-p:16:16-i32:16-i64:16-f32:16-f64:16-a:8-n8:16-S16"
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target triple = "msp430-unknown-unknown-elf"
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@g = global float 0.0
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@N = external global i16, align 2
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define void @foo() {
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; CHECK-LABEL: foo:
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; CHECK: push r4
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; CHECK-NEXT: .cfi_def_cfa_offset 4
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; CHECK-NEXT: .cfi_offset r4, -4
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; CHECK-NEXT: mov r1, r4
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; CHECK-NEXT: .cfi_def_cfa_register r4
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; CHECK: push r6
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; CHECK-NEXT: push r7
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; CHECK-NEXT: push r8
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; CHECK-NEXT: push r9
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; CHECK-NEXT: push r10
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; CHECK: .cfi_offset r6, -6
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; CHECK: .cfi_offset r7, -8
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; CHECK: .cfi_offset r8, -10
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; CHECK: .cfi_offset r9, -12
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; CHECK: .cfi_offset r10, -14
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%n = load i16, ptr @N, align 2
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%vla = alloca i8, i16 %n, align 1
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%t1 = load volatile float, float* @g
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%t2 = load volatile float, float* @g
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%t3 = load volatile float, float* @g
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%t4 = load volatile float, float* @g
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%t5 = load volatile float, float* @g
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store volatile float %t1, float* @g
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store volatile float %t2, float* @g
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store volatile float %t3, float* @g
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store volatile float %t4, float* @g
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store volatile float %t5, float* @g
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; CHECK: mov r4, r1
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; CHECK-NEXT: sub #10, r1
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; CHECK: pop r10
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; CHECK-NEXT: pop r9
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; CHECK-NEXT: pop r8
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; CHECK-NEXT: pop r7
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; CHECK-NEXT: pop r6
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; CHECK: pop r4
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; CHECK: .cfi_def_cfa r1, 2
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; CHECK: .cfi_restore r6
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; CHECK: .cfi_restore r7
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; CHECK: .cfi_restore r8
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; CHECK: .cfi_restore r9
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; CHECK: .cfi_restore r10
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ret void
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}
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