82 lines
2.5 KiB
LLVM
82 lines
2.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 3
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; RUN: llc < %s -frame-pointer=all -mtriple=arm64-windows | FileCheck %s
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; Test generated from C code:
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; #include <stdarg.h>
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; ptr foo() {
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; return _AddressOfReturnAddress();
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; }
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; int bar(int x(va_list, ptr), ...) {
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; va_list y;
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; va_start(y, x);
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; return x(y, _AddressOfReturnAddress()) + 1;
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; }
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declare void @llvm.va_start(ptr)
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declare ptr @llvm.addressofreturnaddress()
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define dso_local ptr @"foo"() {
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; CHECK-LABEL: foo:
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; CHECK: .seh_proc foo
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; CHECK-NEXT: // %bb.0: // %entry
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; CHECK-NEXT: stp x29, x30, [sp, #-16]! // 16-byte Folded Spill
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; CHECK-NEXT: .seh_save_fplr_x 16
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; CHECK-NEXT: mov x29, sp
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; CHECK-NEXT: .seh_set_fp
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; CHECK-NEXT: .seh_endprologue
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; CHECK-NEXT: add x0, x29, #8
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; CHECK-NEXT: .seh_startepilogue
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; CHECK-NEXT: ldp x29, x30, [sp], #16 // 16-byte Folded Reload
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; CHECK-NEXT: .seh_save_fplr_x 16
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; CHECK-NEXT: .seh_endepilogue
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; CHECK-NEXT: ret
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; CHECK-NEXT: .seh_endfunclet
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; CHECK-NEXT: .seh_endproc
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entry:
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%0 = call ptr @llvm.addressofreturnaddress()
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ret ptr %0
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}
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define dso_local i32 @"bar"(ptr %x, ...) {
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; CHECK-LABEL: bar:
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; CHECK: .seh_proc bar
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; CHECK-NEXT: // %bb.0: // %entry
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; CHECK-NEXT: sub sp, sp, #96
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; CHECK-NEXT: .seh_stackalloc 96
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; CHECK-NEXT: stp x29, x30, [sp, #16] // 16-byte Folded Spill
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; CHECK-NEXT: .seh_save_fplr 16
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; CHECK-NEXT: add x29, sp, #16
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; CHECK-NEXT: .seh_add_fp 16
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; CHECK-NEXT: .seh_endprologue
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; CHECK-NEXT: add x9, x29, #24
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; CHECK-NEXT: mov x8, x0
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; CHECK-NEXT: stp x1, x2, [x29, #24]
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; CHECK-NEXT: stp x9, x0, [sp]
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; CHECK-NEXT: add x0, x29, #24
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; CHECK-NEXT: add x1, x29, #8
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; CHECK-NEXT: stp x3, x4, [x29, #40]
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; CHECK-NEXT: stp x5, x6, [x29, #56]
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; CHECK-NEXT: str x7, [x29, #72]
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; CHECK-NEXT: blr x8
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; CHECK-NEXT: add w0, w0, #1
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; CHECK-NEXT: .seh_startepilogue
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; CHECK-NEXT: ldp x29, x30, [sp, #16] // 16-byte Folded Reload
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; CHECK-NEXT: .seh_save_fplr 16
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; CHECK-NEXT: add sp, sp, #96
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; CHECK-NEXT: .seh_stackalloc 96
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; CHECK-NEXT: .seh_endepilogue
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; CHECK-NEXT: ret
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; CHECK-NEXT: .seh_endfunclet
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; CHECK-NEXT: .seh_endproc
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entry:
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%x.addr = alloca ptr, align 8
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%y = alloca ptr, align 8
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store ptr %x, ptr %x.addr, align 8
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call void @llvm.va_start(ptr %y)
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%0 = load ptr, ptr %x.addr, align 8
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%1 = call ptr @llvm.addressofreturnaddress()
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%2 = load ptr, ptr %y, align 8
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%call = call i32 %0(ptr %2, ptr %1)
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%add = add nsw i32 %call, 1
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ret i32 %add
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}
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