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 -relocation-model=pic -enable-mips-tail-calls < %s | FileCheck %s -check-prefixes=ALL,O32,NOT-R6C 5; RUN: llc -march=mips -mcpu=mips32r2 -relocation-model=pic -enable-mips-tail-calls < %s | FileCheck %s -check-prefixes=ALL,O32,NOT-R6C 6; RUN: llc -march=mips -mcpu=mips32r3 -relocation-model=pic -enable-mips-tail-calls < %s | FileCheck %s -check-prefixes=ALL,O32,NOT-R6C 7; RUN: llc -march=mips -mcpu=mips32r5 -relocation-model=pic -enable-mips-tail-calls < %s | FileCheck %s -check-prefixes=ALL,O32,NOT-R6C 8; RUN: llc -march=mips -mcpu=mips32r6 -relocation-model=pic -disable-mips-delay-filler -enable-mips-tail-calls < %s | FileCheck %s -check-prefixes=ALL,O32,R6C 9; RUN: llc -march=mips -mcpu=mips32r6 -relocation-model=pic -mattr=+fp64,+nooddspreg -disable-mips-delay-filler -enable-mips-tail-calls < %s | FileCheck %s -check-prefixes=ALL,O32,R6C 10; RUN: llc -march=mips64 -mcpu=mips4 -enable-mips-tail-calls < %s | FileCheck %s -check-prefixes=ALL,N64,NOT-R6C 11; RUN: llc -march=mips64 -mcpu=mips64 -enable-mips-tail-calls < %s | FileCheck %s -check-prefixes=ALL,N64,NOT-R6C 12; RUN: llc -march=mips64 -mcpu=mips64r2 -enable-mips-tail-calls < %s | FileCheck %s -check-prefixes=ALL,N64,NOT-R6C 13; RUN: llc -march=mips64 -mcpu=mips64r3 -enable-mips-tail-calls < %s | FileCheck %s -check-prefixes=ALL,N64,NOT-R6C 14; RUN: llc -march=mips64 -mcpu=mips64r5 -enable-mips-tail-calls < %s | FileCheck %s -check-prefixes=ALL,N64,NOT-R6C 15; RUN: llc -march=mips64 -mcpu=mips64r6 -disable-mips-delay-filler -enable-mips-tail-calls < %s | FileCheck %s -check-prefixes=ALL,N64,R6C 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; NOT-R6C: jalr $[[TGT]] 29; R6C: jalrc $[[TGT]] 30 31 call void @extern_void_void() 32; R6C: jrc $ra 33 ret i32 0 34} 35 36define i32 @call_i32_void() { 37; ALL-LABEL: call_i32_void: 38 39; O32: lw $[[TGT:[0-9]+]], %call16(extern_i32_void)($gp) 40 41; N64: ld $[[TGT:[0-9]+]], %call16(extern_i32_void)($gp) 42 43; NOT-R6C: jalr $[[TGT]] 44; R6C: jalrc $[[TGT]] 45 46 %1 = call i32 @extern_i32_void() 47 %2 = add i32 %1, 1 48; R6C: jrc $ra 49 ret i32 %2 50} 51 52define float @call_float_void() { 53; ALL-LABEL: call_float_void: 54 55; FIXME: Not sure why we don't use $gp directly on such a simple test. We should 56; look into it at some point. 57; O32: addu $[[GP:[0-9]+]], ${{[0-9]+}}, $25 58; O32: lw $[[TGT:[0-9]+]], %call16(extern_float_void)($[[GP]]) 59 60; N64: ld $[[TGT:[0-9]+]], %call16(extern_float_void)($gp) 61 62; NOT-R6C: jalr $[[TGT]] 63; R6C: jalrc $[[TGT]] 64 65 66 %1 = call float @extern_float_void() 67 %2 = fadd float %1, 1.0 68; R6C: jrc $ra 69 ret float %2 70} 71 72define void @musttail_call_void_void() { 73; ALL-LABEL: musttail_call_void_void: 74 75; O32: lw $[[TGT:[0-9]+]], %call16(extern_void_void)($gp) 76 77; N64: ld $[[TGT:[0-9]+]], %call16(extern_void_void)($gp) 78 79; ALL: jr $[[TGT]] 80 81 musttail call void @extern_void_void() 82 ret void 83} 84 85define i32 @musttail_call_i32_void() { 86; ALL-LABEL: musttail_call_i32_void: 87 88; O32: lw $[[TGT:[0-9]+]], %call16(extern_i32_void)($gp) 89 90; N64: ld $[[TGT:[0-9]+]], %call16(extern_i32_void)($gp) 91 92; ALL: jr $[[TGT]] 93 94 %1 = musttail call i32 @extern_i32_void() 95 ret i32 %1 96} 97 98define float @musttail_call_float_void() { 99; ALL-LABEL: musttail_call_float_void: 100 101; O32: lw $[[TGT:[0-9]+]], %call16(extern_float_void)($gp) 102 103; N64: ld $[[TGT:[0-9]+]], %call16(extern_float_void)($gp) 104 105; ALL: jr $[[TGT]] 106 107 %1 = musttail call float @extern_float_void() 108 ret float %1 109} 110 111define i32 @indirect_call_void_void(void ()* %addr) { 112; ALL-LABEL: indirect_call_void_void: 113 114; ALL: move $25, $4 115; NOT-R6C: jalr $25 116; R6C: jalrc $25 117 118 call void %addr() 119; R6C: jrc $ra 120 ret i32 0 121} 122 123define i32 @indirect_call_i32_void(i32 ()* %addr) { 124; ALL-LABEL: indirect_call_i32_void: 125 126; ALL: move $25, $4 127; NOT-R6C: jalr $25 128; R6C: jalrc $25 129 130 131 %1 = call i32 %addr() 132 %2 = add i32 %1, 1 133; R6C: jrc $ra 134 ret i32 %2 135} 136 137define float @indirect_call_float_void(float ()* %addr) { 138; ALL-LABEL: indirect_call_float_void: 139 140; ALL: move $25, $4 141; NOT-R6C: jalr $25 142; R6C: jalrc $25 143 144 145 %1 = call float %addr() 146 %2 = fadd float %1, 1.0 147; R6C: jrc $ra 148 ret float %2 149} 150 151; We can't use 'musttail' here because the verifier is too conservative and 152; prohibits any prototype difference. 153define void @tail_indirect_call_void_void(void ()* %addr) { 154; ALL-LABEL: tail_indirect_call_void_void: 155 156; ALL: move $25, $4 157; ALL: jr $25 158 159 tail call void %addr() 160 ret void 161} 162 163define i32 @tail_indirect_call_i32_void(i32 ()* %addr) { 164; ALL-LABEL: tail_indirect_call_i32_void: 165 166; ALL: move $25, $4 167; ALL: jr $25 168 169 %1 = tail call i32 %addr() 170 ret i32 %1 171} 172 173define float @tail_indirect_call_float_void(float ()* %addr) { 174; ALL-LABEL: tail_indirect_call_float_void: 175 176; ALL: move $25, $4 177; ALL: jr $25 178 179 %1 = tail call float %addr() 180 ret float %1 181} 182 183; Check that passing undef as a double value doesn't cause machine code errors 184; for FP64. 185declare hidden void @undef_double(i32 %this, double %volume) unnamed_addr align 2 186 187define hidden void @thunk_undef_double(i32 %this, double %volume) unnamed_addr align 2 { 188; ALL-LABEL: thunk_undef_double: 189; O32: # implicit-def: %A2 190; O32: # implicit-def: %A3 191; ALL: jr $25 192 193 tail call void @undef_double(i32 undef, double undef) #8 194 ret void 195} 196 197; Check that immediate addresses do not use jal. 198define i32 @jal_only_allows_symbols() { 199; ALL-LABEL: jal_only_allows_symbols: 200 201; ALL-NOT: {{jal }} 202; ALL: addiu $[[TGT:[0-9]+]], $zero, 1234 203; ALL-NOT: {{jal }} 204; NOT-R6C: jalr $[[TGT]] 205; R6C: jalrc $[[TGT]] 206; ALL-NOT: {{jal }} 207 208 call void () inttoptr (i32 1234 to void ()*)() 209; R6C: jrc $ra 210 ret i32 0 211} 212 213