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; RUN: llc -march=mipsel -relocation-model=pic -enable-mips-tail-calls < %s | \
; RUN: FileCheck %s -check-prefix=PIC32
; RUN: llc -march=mipsel -relocation-model=static \
; RUN: -enable-mips-tail-calls < %s | FileCheck %s -check-prefix=STATIC32
; RUN: llc -march=mips64el -mcpu=mips64r2 -mattr=+n64 -enable-mips-tail-calls \
; RUN: < %s | FileCheck %s -check-prefix=N64
@g0 = common global i32 0, align 4
@g1 = common global i32 0, align 4
@g2 = common global i32 0, align 4
@g3 = common global i32 0, align 4
@g4 = common global i32 0, align 4
@g5 = common global i32 0, align 4
@g6 = common global i32 0, align 4
@g7 = common global i32 0, align 4
@g8 = common global i32 0, align 4
@g9 = common global i32 0, align 4
define i32 @caller1(i32 %a0) nounwind {
entry:
; PIC32-NOT: jalr
; STATIC32-NOT: jal
; N64-NOT: jalr
%call = tail call i32 @callee1(i32 1, i32 1, i32 1, i32 %a0) nounwind
ret i32 %call
}
declare i32 @callee1(i32, i32, i32, i32)
define i32 @caller2(i32 %a0, i32 %a1, i32 %a2, i32 %a3) nounwind {
entry:
; PIC32: jalr
; STATIC32: jal
; N64-NOT: jalr
%call = tail call i32 @callee2(i32 1, i32 %a0, i32 %a1, i32 %a2, i32 %a3) nounwind
ret i32 %call
}
declare i32 @callee2(i32, i32, i32, i32, i32)
define i32 @caller3(i32 %a0, i32 %a1, i32 %a2, i32 %a3, i32 %a4) nounwind {
entry:
; PIC32: jalr
; STATIC32: jal
; N64-NOT: jalr
%call = tail call i32 @callee3(i32 1, i32 1, i32 1, i32 %a0, i32 %a1, i32 %a2, i32 %a3, i32 %a4) nounwind
ret i32 %call
}
declare i32 @callee3(i32, i32, i32, i32, i32, i32, i32, i32)
define i32 @caller4(i32 %a0, i32 %a1, i32 %a2, i32 %a3, i32 %a4, i32 %a5, i32 %a6, i32 %a7) nounwind {
entry:
; PIC32: jalr
; STATIC32: jal
; N64: jalr
%call = tail call i32 @callee4(i32 1, i32 %a0, i32 %a1, i32 %a2, i32 %a3, i32 %a4, i32 %a5, i32 %a6, i32 %a7) nounwind
ret i32 %call
}
declare i32 @callee4(i32, i32, i32, i32, i32, i32, i32, i32, i32)
define i32 @caller5() nounwind readonly {
entry:
; PIC32: .ent caller5
; PIC32-NOT: jalr
; PIC32: .end caller5
; STATIC32: .ent caller5
; STATIC32-NOT: jal
; STATIC32: .end caller5
; N64: .ent caller5
; N64-NOT: jalr
; N64: .end caller5
%0 = load i32* @g0, align 4
%1 = load i32* @g1, align 4
%2 = load i32* @g2, align 4
%3 = load i32* @g3, align 4
%4 = load i32* @g4, align 4
%5 = load i32* @g5, align 4
%6 = load i32* @g6, align 4
%7 = load i32* @g7, align 4
%8 = load i32* @g8, align 4
%9 = load i32* @g9, align 4
%call = tail call fastcc i32 @callee5(i32 %0, i32 %1, i32 %2, i32 %3, i32 %4, i32 %5, i32 %6, i32 %7, i32 %8, i32 %9)
ret i32 %call
}
define internal fastcc i32 @callee5(i32 %a0, i32 %a1, i32 %a2, i32 %a3, i32 %a4, i32 %a5, i32 %a6, i32 %a7, i32 %a8, i32 %a9) nounwind readnone noinline {
entry:
%add = add nsw i32 %a1, %a0
%add1 = add nsw i32 %add, %a2
%add2 = add nsw i32 %add1, %a3
%add3 = add nsw i32 %add2, %a4
%add4 = add nsw i32 %add3, %a5
%add5 = add nsw i32 %add4, %a6
%add6 = add nsw i32 %add5, %a7
%add7 = add nsw i32 %add6, %a8
%add8 = add nsw i32 %add7, %a9
ret i32 %add8
}
declare i32 @callee8(i32, ...)
define i32 @caller8_0() nounwind {
entry:
%call = tail call fastcc i32 @caller8_1()
ret i32 %call
}
define internal fastcc i32 @caller8_1() nounwind noinline {
entry:
; PIC32: .ent caller8_1
; PIC32: jalr
; PIC32: .end caller8_1
; STATIC32: .ent caller8_1
; STATIC32: jal
; STATIC32: .end caller8_1
; N64: .ent caller8_1
; N64: jalr
; N64: .end caller8_1
%call = tail call i32 (i32, ...)* @callee8(i32 2, i32 1) nounwind
ret i32 %call
}
%struct.S = type { [2 x i32] }
@gs1 = external global %struct.S
declare i32 @callee9(%struct.S* byval)
define i32 @caller9_0() nounwind {
entry:
%call = tail call fastcc i32 @caller9_1()
ret i32 %call
}
define internal fastcc i32 @caller9_1() nounwind noinline {
entry:
; PIC32: .ent caller9_1
; PIC32: jalr
; PIC32: .end caller9_1
; STATIC32: .ent caller9_1
; STATIC32: jal
; STATIC32: .end caller9_1
; N64: .ent caller9_1
; N64: jalr
; N64: .end caller9_1
%call = tail call i32 @callee9(%struct.S* byval @gs1) nounwind
ret i32 %call
}
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