1; Test the 'call' instruction and the tailcall variant. 2 3; FIXME: We should remove the need for -enable-mips-tail-calls 4; RUN: llc -march=mips -mcpu=mips32 -enable-mips-tail-calls < %s | FileCheck %s -check-prefix=ALL -check-prefix=O32 5; RUN: llc -march=mips -mcpu=mips32r2 -enable-mips-tail-calls < %s | FileCheck %s -check-prefix=ALL -check-prefix=O32 6; RUN: llc -march=mips -mcpu=mips32r3 -enable-mips-tail-calls < %s | FileCheck %s -check-prefix=ALL -check-prefix=O32 7; RUN: llc -march=mips -mcpu=mips32r5 -enable-mips-tail-calls < %s | FileCheck %s -check-prefix=ALL -check-prefix=O32 8; RUN: llc -march=mips -mcpu=mips32r6 -enable-mips-tail-calls < %s | FileCheck %s -check-prefix=ALL -check-prefix=O32 9; RUN: llc -march=mips -mcpu=mips32r6 -mattr=+fp64,+nooddspreg -enable-mips-tail-calls < %s | FileCheck %s -check-prefix=ALL -check-prefix=O32 10; RUN: llc -march=mips64 -mcpu=mips4 -enable-mips-tail-calls < %s | FileCheck %s -check-prefix=ALL -check-prefix=N64 11; RUN: llc -march=mips64 -mcpu=mips64 -enable-mips-tail-calls < %s | FileCheck %s -check-prefix=ALL -check-prefix=N64 12; RUN: llc -march=mips64 -mcpu=mips64r2 -enable-mips-tail-calls < %s | FileCheck %s -check-prefix=ALL -check-prefix=N64 13; RUN: llc -march=mips64 -mcpu=mips64r3 -enable-mips-tail-calls < %s | FileCheck %s -check-prefix=ALL -check-prefix=N64 14; RUN: llc -march=mips64 -mcpu=mips64r5 -enable-mips-tail-calls < %s | FileCheck %s -check-prefix=ALL -check-prefix=N64 15; RUN: llc -march=mips64 -mcpu=mips64r6 -enable-mips-tail-calls < %s | FileCheck %s -check-prefix=ALL -check-prefix=N64 16 17declare void @extern_void_void() 18declare i32 @extern_i32_void() 19declare float @extern_float_void() 20 21define i32 @call_void_void() { 22; ALL-LABEL: call_void_void: 23 24; O32: lw $[[TGT:[0-9]+]], %call16(extern_void_void)($gp) 25 26; N64: ld $[[TGT:[0-9]+]], %call16(extern_void_void)($gp) 27 28; ALL: jalr $[[TGT]] 29 30 call void @extern_void_void() 31 ret i32 0 32} 33 34define i32 @call_i32_void() { 35; ALL-LABEL: call_i32_void: 36 37; O32: lw $[[TGT:[0-9]+]], %call16(extern_i32_void)($gp) 38 39; N64: ld $[[TGT:[0-9]+]], %call16(extern_i32_void)($gp) 40 41; ALL: jalr $[[TGT]] 42 43 %1 = call i32 @extern_i32_void() 44 %2 = add i32 %1, 1 45 ret i32 %2 46} 47 48define float @call_float_void() { 49; ALL-LABEL: call_float_void: 50 51; FIXME: Not sure why we don't use $gp directly on such a simple test. We should 52; look into it at some point. 53; O32: addu $[[GP:[0-9]+]], ${{[0-9]+}}, $25 54; O32: lw $[[TGT:[0-9]+]], %call16(extern_float_void)($[[GP]]) 55 56; N64: ld $[[TGT:[0-9]+]], %call16(extern_float_void)($gp) 57 58; ALL: jalr $[[TGT]] 59 60; O32: move $gp, $[[GP]] 61 62 %1 = call float @extern_float_void() 63 %2 = fadd float %1, 1.0 64 ret float %2 65} 66 67define void @musttail_call_void_void() { 68; ALL-LABEL: musttail_call_void_void: 69 70; O32: lw $[[TGT:[0-9]+]], %call16(extern_void_void)($gp) 71 72; N64: ld $[[TGT:[0-9]+]], %call16(extern_void_void)($gp) 73 74; NOT-R6: jr $[[TGT]] 75; R6: r6.jr $[[TGT]] 76 77 musttail call void @extern_void_void() 78 ret void 79} 80 81define i32 @musttail_call_i32_void() { 82; ALL-LABEL: musttail_call_i32_void: 83 84; O32: lw $[[TGT:[0-9]+]], %call16(extern_i32_void)($gp) 85 86; N64: ld $[[TGT:[0-9]+]], %call16(extern_i32_void)($gp) 87 88; NOT-R6: jr $[[TGT]] 89; R6: r6.jr $[[TGT]] 90 91 %1 = musttail call i32 @extern_i32_void() 92 ret i32 %1 93} 94 95define float @musttail_call_float_void() { 96; ALL-LABEL: musttail_call_float_void: 97 98; O32: lw $[[TGT:[0-9]+]], %call16(extern_float_void)($gp) 99 100; N64: ld $[[TGT:[0-9]+]], %call16(extern_float_void)($gp) 101 102; NOT-R6: jr $[[TGT]] 103; R6: r6.jr $[[TGT]] 104 105 %1 = musttail call float @extern_float_void() 106 ret float %1 107} 108 109define i32 @indirect_call_void_void(void ()* %addr) { 110; ALL-LABEL: indirect_call_void_void: 111 112; ALL: move $25, $4 113; ALL: jalr $25 114 115 call void %addr() 116 ret i32 0 117} 118 119define i32 @indirect_call_i32_void(i32 ()* %addr) { 120; ALL-LABEL: indirect_call_i32_void: 121 122; ALL: move $25, $4 123; ALL: jalr $25 124 125 %1 = call i32 %addr() 126 %2 = add i32 %1, 1 127 ret i32 %2 128} 129 130define float @indirect_call_float_void(float ()* %addr) { 131; ALL-LABEL: indirect_call_float_void: 132 133; ALL: move $25, $4 134; ALL: jalr $25 135 136 %1 = call float %addr() 137 %2 = fadd float %1, 1.0 138 ret float %2 139} 140 141; We can't use 'musttail' here because the verifier is too conservative and 142; prohibits any prototype difference. 143define void @tail_indirect_call_void_void(void ()* %addr) { 144; ALL-LABEL: tail_indirect_call_void_void: 145 146; ALL: move $25, $4 147; ALL: jr $25 148 149 tail call void %addr() 150 ret void 151} 152 153define i32 @tail_indirect_call_i32_void(i32 ()* %addr) { 154; ALL-LABEL: tail_indirect_call_i32_void: 155 156; ALL: move $25, $4 157; ALL: jr $25 158 159 %1 = tail call i32 %addr() 160 ret i32 %1 161} 162 163define float @tail_indirect_call_float_void(float ()* %addr) { 164; ALL-LABEL: tail_indirect_call_float_void: 165 166; ALL: move $25, $4 167; ALL: jr $25 168 169 %1 = tail call float %addr() 170 ret float %1 171} 172 173; Check that passing undef as a double value doesn't cause machine code errors 174; for FP64. 175declare hidden void @undef_double(i32 %this, double %volume) unnamed_addr align 2 176 177define hidden void @thunk_undef_double(i32 %this, double %volume) unnamed_addr align 2 { 178; ALL-LABEL: thunk_undef_double: 179; O32: # implicit-def: %A2 180; O32: # implicit-def: %A3 181; ALL: jr $25 182 tail call void @undef_double(i32 undef, double undef) #8 183 ret void 184} 185