1 ; RUN: llc < %s -O0 -mattr=sse2 -mtriple=x86_64-pc-windows-itanium | FileCheck %s -check-prefix=WIN64 -check-prefix=NORM 2 ; RUN: llc < %s -O0 -mattr=sse2 -mtriple=x86_64-pc-mingw32 | FileCheck %s -check-prefix=WIN64 -check-prefix=NORM 3 ; RUN: llc < %s -O0 -mattr=sse2 -mtriple=x86_64-pc-mingw32 -mcpu=atom | FileCheck %s -check-prefix=WIN64 -check-prefix=ATOM 4 5 ; Check function without prolog 6 define void @foo0() uwtable { 7 entry: 8 ret void 9 } 10 ; WIN64-LABEL: foo0: 11 ; WIN64-NOT: .seh_proc foo0 12 ; WIN64-NOT: .seh_endprologue 13 ; WIN64: ret 14 ; WIN64-NOT: .seh_endproc 15 16 ; Checks a small stack allocation 17 define void @foo1() uwtable { 18 entry: 19 %baz = alloca [2000 x i16], align 2 20 ret void 21 } 22 ; WIN64-LABEL: foo1: 23 ; WIN64: .seh_proc foo1 24 ; NORM: subq $4000, %rsp 25 ; ATOM: leaq -4000(%rsp), %rsp 26 ; WIN64: .seh_stackalloc 4000 27 ; WIN64: .seh_endprologue 28 ; WIN64: addq $4000, %rsp 29 ; WIN64: ret 30 ; WIN64: .seh_endproc 31 32 ; Checks a stack allocation requiring call to __chkstk/___chkstk_ms 33 define void @foo2() uwtable { 34 entry: 35 %baz = alloca [4000 x i16], align 2 36 ret void 37 } 38 ; WIN64-LABEL: foo2: 39 ; WIN64: .seh_proc foo2 40 ; WIN64: movl $8000, %eax 41 ; WIN64: callq {{__chkstk|___chkstk_ms}} 42 ; WIN64: subq %rax, %rsp 43 ; WIN64: .seh_stackalloc 8000 44 ; WIN64: .seh_endprologue 45 ; WIN64: addq $8000, %rsp 46 ; WIN64: ret 47 ; WIN64: .seh_endproc 48 49 50 define i32 @foo3(i32 %f_arg, i32 %e_arg, i32 %d_arg, i32 %c_arg, i32 %b_arg, i32 %a_arg) uwtable { 51 entry: 52 %a = alloca i32 53 %b = alloca i32 54 %c = alloca i32 55 %d = alloca i32 56 %e = alloca i32 57 %f = alloca i32 58 store i32 %a_arg, i32* %a 59 store i32 %b_arg, i32* %b 60 store i32 %c_arg, i32* %c 61 store i32 %d_arg, i32* %d 62 store i32 %e_arg, i32* %e 63 store i32 %f_arg, i32* %f 64 %tmp = load i32, i32* %a 65 %tmp1 = mul i32 %tmp, 2 66 %tmp2 = load i32, i32* %b 67 %tmp3 = mul i32 %tmp2, 3 68 %tmp4 = add i32 %tmp1, %tmp3 69 %tmp5 = load i32, i32* %c 70 %tmp6 = mul i32 %tmp5, 5 71 %tmp7 = add i32 %tmp4, %tmp6 72 %tmp8 = load i32, i32* %d 73 %tmp9 = mul i32 %tmp8, 7 74 %tmp10 = add i32 %tmp7, %tmp9 75 %tmp11 = load i32, i32* %e 76 %tmp12 = mul i32 %tmp11, 11 77 %tmp13 = add i32 %tmp10, %tmp12 78 %tmp14 = load i32, i32* %f 79 %tmp15 = mul i32 %tmp14, 13 80 %tmp16 = add i32 %tmp13, %tmp15 81 ret i32 %tmp16 82 } 83 ; WIN64-LABEL: foo3: 84 ; WIN64: .seh_proc foo3 85 ; NORM: subq $24, %rsp 86 ; ATOM: leaq -24(%rsp), %rsp 87 ; WIN64: .seh_stackalloc 24 88 ; WIN64: .seh_endprologue 89 ; WIN64: addq $24, %rsp 90 ; WIN64: ret 91 ; WIN64: .seh_endproc 92 93 94 ; Check emission of eh handler and handler data 95 declare i32 @_d_eh_personality(i32, i32, i64, i8*, i8*) 96 declare void @_d_eh_resume_unwind(i8*) 97 98 declare i32 @bar() 99 100 define i32 @foo4() #0 personality i32 (i32, i32, i64, i8*, i8*)* @_d_eh_personality { 101 entry: 102 %step = alloca i32, align 4 103 store i32 0, i32* %step 104 %tmp = load i32, i32* %step 105 106 %tmp1 = invoke i32 @bar() 107 to label %finally unwind label %landingpad 108 109 finally: 110 store i32 1, i32* %step 111 br label %endtryfinally 112 113 landingpad: 114 %landing_pad = landingpad { i8*, i32 } 115 cleanup 116 %tmp3 = extractvalue { i8*, i32 } %landing_pad, 0 117 store i32 2, i32* %step 118 call void @_d_eh_resume_unwind(i8* %tmp3) 119 unreachable 120 121 endtryfinally: 122 %tmp10 = load i32, i32* %step 123 ret i32 %tmp10 124 } 125 ; WIN64-LABEL: foo4: 126 ; WIN64: .seh_proc foo4 127 ; WIN64: .seh_handler _d_eh_personality, @unwind, @except 128 ; NORM: subq $56, %rsp 129 ; ATOM: leaq -56(%rsp), %rsp 130 ; WIN64: .seh_stackalloc 56 131 ; WIN64: .seh_endprologue 132 ; WIN64: addq $56, %rsp 133 ; WIN64: ret 134 ; WIN64: .seh_handlerdata 135 ; WIN64: .seh_endproc 136 137 138 ; Check stack re-alignment and xmm spilling 139 define void @foo5() uwtable { 140 entry: 141 %s = alloca i32, align 64 142 call void asm sideeffect "", "~{rbx},~{rdi},~{xmm6},~{xmm7}"() 143 ret void 144 } 145 ; WIN64-LABEL: foo5: 146 ; WIN64: .seh_proc foo5 147 ; WIN64: pushq %rbp 148 ; WIN64: .seh_pushreg 5 149 ; WIN64: pushq %rdi 150 ; WIN64: .seh_pushreg 7 151 ; WIN64: pushq %rbx 152 ; WIN64: .seh_pushreg 3 153 ; NORM: subq $96, %rsp 154 ; ATOM: leaq -96(%rsp), %rsp 155 ; WIN64: .seh_stackalloc 96 156 ; WIN64: leaq 96(%rsp), %rbp 157 ; WIN64: .seh_setframe 5, 96 158 ; WIN64: movaps %xmm7, -16(%rbp) # 16-byte Spill 159 ; WIN64: .seh_savexmm 7, 80 160 ; WIN64: movaps %xmm6, -32(%rbp) # 16-byte Spill 161 ; WIN64: .seh_savexmm 6, 64 162 ; WIN64: .seh_endprologue 163 ; WIN64: andq $-64, %rsp 164 ; WIN64: movaps -32(%rbp), %xmm6 # 16-byte Reload 165 ; WIN64: movaps -16(%rbp), %xmm7 # 16-byte Reload 166 ; WIN64: movq %rbp, %rsp 167 ; WIN64: popq %rbx 168 ; WIN64: popq %rdi 169 ; WIN64: popq %rbp 170 ; WIN64: retq 171 ; WIN64: .seh_endproc 172
