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; Test the 'call' instruction and the tailcall variant.
; FIXME: We should remove the need for -enable-mips-tail-calls
; RUN: llc -march=mips -mcpu=mips32 -enable-mips-tail-calls < %s | FileCheck %s -check-prefix=ALL -check-prefix=O32
; RUN: llc -march=mips -mcpu=mips32r2 -enable-mips-tail-calls < %s | FileCheck %s -check-prefix=ALL -check-prefix=O32
; RUN: llc -march=mips -mcpu=mips32r6 -enable-mips-tail-calls < %s | FileCheck %s -check-prefix=ALL -check-prefix=O32
; RUN: llc -march=mips64 -mcpu=mips4 -enable-mips-tail-calls < %s | FileCheck %s -check-prefix=ALL -check-prefix=N64
; RUN: llc -march=mips64 -mcpu=mips64 -enable-mips-tail-calls < %s | FileCheck %s -check-prefix=ALL -check-prefix=N64
; RUN: llc -march=mips64 -mcpu=mips64r2 -enable-mips-tail-calls < %s | FileCheck %s -check-prefix=ALL -check-prefix=N64
; RUN: llc -march=mips64 -mcpu=mips64r6 -enable-mips-tail-calls < %s | FileCheck %s -check-prefix=ALL -check-prefix=N64
declare void @extern_void_void()
declare i32 @extern_i32_void()
declare float @extern_float_void()
define i32 @call_void_void() {
; ALL-LABEL: call_void_void:
; O32: lw $[[TGT:[0-9]+]], %call16(extern_void_void)($gp)
; N64: ld $[[TGT:[0-9]+]], %call16(extern_void_void)($gp)
; ALL: jalr $[[TGT]]
call void @extern_void_void()
ret i32 0
}
define i32 @call_i32_void() {
; ALL-LABEL: call_i32_void:
; O32: lw $[[TGT:[0-9]+]], %call16(extern_i32_void)($gp)
; N64: ld $[[TGT:[0-9]+]], %call16(extern_i32_void)($gp)
; ALL: jalr $[[TGT]]
%1 = call i32 @extern_i32_void()
%2 = add i32 %1, 1
ret i32 %2
}
define float @call_float_void() {
; ALL-LABEL: call_float_void:
; FIXME: Not sure why we don't use $gp directly on such a simple test. We should
; look into it at some point.
; O32: addu $[[GP:[0-9]+]], ${{[0-9]+}}, $25
; O32: lw $[[TGT:[0-9]+]], %call16(extern_float_void)($[[GP]])
; N64: ld $[[TGT:[0-9]+]], %call16(extern_float_void)($gp)
; ALL: jalr $[[TGT]]
; O32: move $gp, $[[GP]]
%1 = call float @extern_float_void()
%2 = fadd float %1, 1.0
ret float %2
}
define void @musttail_call_void_void() {
; ALL-LABEL: musttail_call_void_void:
; O32: lw $[[TGT:[0-9]+]], %call16(extern_void_void)($gp)
; N64: ld $[[TGT:[0-9]+]], %call16(extern_void_void)($gp)
; NOT-R6: jr $[[TGT]]
; R6: r6.jr $[[TGT]]
musttail call void @extern_void_void()
ret void
}
define i32 @musttail_call_i32_void() {
; ALL-LABEL: musttail_call_i32_void:
; O32: lw $[[TGT:[0-9]+]], %call16(extern_i32_void)($gp)
; N64: ld $[[TGT:[0-9]+]], %call16(extern_i32_void)($gp)
; NOT-R6: jr $[[TGT]]
; R6: r6.jr $[[TGT]]
%1 = musttail call i32 @extern_i32_void()
ret i32 %1
}
define float @musttail_call_float_void() {
; ALL-LABEL: musttail_call_float_void:
; O32: lw $[[TGT:[0-9]+]], %call16(extern_float_void)($gp)
; N64: ld $[[TGT:[0-9]+]], %call16(extern_float_void)($gp)
; NOT-R6: jr $[[TGT]]
; R6: r6.jr $[[TGT]]
%1 = musttail call float @extern_float_void()
ret float %1
}
define i32 @indirect_call_void_void(void ()* %addr) {
; ALL-LABEL: indirect_call_void_void:
; ALL: move $25, $4
; ALL: jalr $25
call void %addr()
ret i32 0
}
define i32 @indirect_call_i32_void(i32 ()* %addr) {
; ALL-LABEL: indirect_call_i32_void:
; ALL: move $25, $4
; ALL: jalr $25
%1 = call i32 %addr()
%2 = add i32 %1, 1
ret i32 %2
}
define float @indirect_call_float_void(float ()* %addr) {
; ALL-LABEL: indirect_call_float_void:
; ALL: move $25, $4
; ALL: jalr $25
%1 = call float %addr()
%2 = fadd float %1, 1.0
ret float %2
}
; We can't use 'musttail' here because the verifier is too conservative and
; prohibits any prototype difference.
define void @tail_indirect_call_void_void(void ()* %addr) {
; ALL-LABEL: tail_indirect_call_void_void:
; ALL: move $25, $4
; ALL: jr $25
tail call void %addr()
ret void
}
define i32 @tail_indirect_call_i32_void(i32 ()* %addr) {
; ALL-LABEL: tail_indirect_call_i32_void:
; ALL: move $25, $4
; ALL: jr $25
%1 = tail call i32 %addr()
ret i32 %1
}
define float @tail_indirect_call_float_void(float ()* %addr) {
; ALL-LABEL: tail_indirect_call_float_void:
; ALL: move $25, $4
; ALL: jr $25
%1 = tail call float %addr()
ret float %1
}
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