; RUN: llc -march=mipsel -relocation-model=pic < %s | FileCheck %s
; Check that function accesses vector return value from stack in cases when
; vector can't be returned in registers. Also check that caller passes in
; register $4 stack address where the vector should be placed.
declare <8 x i32> @i8(...)
declare <4 x float> @f4(...)
declare <4 x double> @d4(...)
define i32 @call_i8() {
entry:
%call = call <8 x i32> (...) @i8()
%v0 = extractelement <8 x i32> %call, i32 0
%v1 = extractelement <8 x i32> %call, i32 1
%v2 = extractelement <8 x i32> %call, i32 2
%v3 = extractelement <8 x i32> %call, i32 3
%v4 = extractelement <8 x i32> %call, i32 4
%v5 = extractelement <8 x i32> %call, i32 5
%v6 = extractelement <8 x i32> %call, i32 6
%v7 = extractelement <8 x i32> %call, i32 7
%add1 = add i32 %v0, %v1
%add2 = add i32 %v2, %v3
%add3 = add i32 %v4, %v5
%add4 = add i32 %v6, %v7
%add5 = add i32 %add1, %add2
%add6 = add i32 %add3, %add4
%add7 = add i32 %add5, %add6
ret i32 %add7
; CHECK-LABEL: call_i8:
; CHECK: call16(i8)
; CHECK: addiu $4, $sp, 32
; CHECK: lw $[[R0:[a-z0-9]+]], 60($sp)
; CHECK: lw $[[R1:[a-z0-9]+]], 56($sp)
; CHECK: lw $[[R2:[a-z0-9]+]], 52($sp)
; CHECK: lw $[[R3:[a-z0-9]+]], 48($sp)
; CHECK: lw $[[R4:[a-z0-9]+]], 44($sp)
; CHECK: lw $[[R5:[a-z0-9]+]], 40($sp)
; CHECK: lw $[[R6:[a-z0-9]+]], 36($sp)
; CHECK: lw $[[R7:[a-z0-9]+]], 32($sp)
}
define float @call_f4() {
entry:
%call = call <4 x float> (...) @f4()
%v0 = extractelement <4 x float> %call, i32 0
%v1 = extractelement <4 x float> %call, i32 1
%v2 = extractelement <4 x float> %call, i32 2
%v3 = extractelement <4 x float> %call, i32 3
%add1 = fadd float %v0, %v1
%add2 = fadd float %v2, %v3
%add3 = fadd float %add1, %add2
ret float %add3
; CHECK-LABEL: call_f4:
; CHECK: call16(f4)
; CHECK: addiu $4, $sp, 16
; CHECK: lwc1 $[[R0:[a-z0-9]+]], 28($sp)
; CHECK: lwc1 $[[R1:[a-z0-9]+]], 24($sp)
; CHECK: lwc1 $[[R3:[a-z0-9]+]], 20($sp)
; CHECK: lwc1 $[[R4:[a-z0-9]+]], 16($sp)
}
define double @call_d4() {
entry:
%call = call <4 x double> (...) @d4()
%v0 = extractelement <4 x double> %call, i32 0
%v1 = extractelement <4 x double> %call, i32 1
%v2 = extractelement <4 x double> %call, i32 2
%v3 = extractelement <4 x double> %call, i32 3
%add1 = fadd double %v0, %v1
%add2 = fadd double %v2, %v3
%add3 = fadd double %add1, %add2
ret double %add3
; CHECK-LABEL: call_d4:
; CHECK: call16(d4)
; CHECK: addiu $4, $sp, 32
; CHECK: ldc1 $[[R0:[a-z0-9]+]], 56($sp)
; CHECK: ldc1 $[[R1:[a-z0-9]+]], 48($sp)
; CHECK: ldc1 $[[R3:[a-z0-9]+]], 40($sp)
; CHECK: ldc1 $[[R4:[a-z0-9]+]], 32($sp)
}
; Check that function accesses vector return value from registers in cases when
; vector can be returned in registers
declare <4 x i32> @i4(...)
declare <2 x float> @f2(...)
declare <2 x double> @d2(...)
define i32 @call_i4() {
entry:
%call = call <4 x i32> (...) @i4()
%v0 = extractelement <4 x i32> %call, i32 0
%v1 = extractelement <4 x i32> %call, i32 1
%v2 = extractelement <4 x i32> %call, i32 2
%v3 = extractelement <4 x i32> %call, i32 3
%add1 = add i32 %v0, %v1
%add2 = add i32 %v2, %v3
%add3 = add i32 %add1, %add2
ret i32 %add3
; CHECK-LABEL: call_i4:
; CHECK: call16(i4)
; CHECK-NOT: lw
; CHECK: addu $[[R2:[a-z0-9]+]], $[[R0:[a-z0-9]+]], $[[R1:[a-z0-9]+]]
; CHECK: addu $[[R5:[a-z0-9]+]], $[[R3:[a-z0-9]+]], $[[R4:[a-z0-9]+]]
; CHECK: addu $[[R6:[a-z0-9]+]], $[[R5]], $[[R2]]
}
define float @call_f2() {
entry:
%call = call <2 x float> (...) @f2()
%v0 = extractelement <2 x float> %call, i32 0
%v1 = extractelement <2 x float> %call, i32 1
%add1 = fadd float %v0, %v1
ret float %add1
; CHECK-LABEL: call_f2:
; CHECK: call16(f2)
; CHECK: addiu $4, $sp, [[O0:[0-9]+]]
; CHECK-DAG: lwc1 $f[[F0:[0-9]]], [[O0]]($sp)
; CHECK-DAG: lwc1 $f[[F1:[0-9]]], 20($sp)
; CHECK: add.s $f0, $f[[F0]], $f[[F1]]
}
define double @call_d2() {
entry:
%call = call <2 x double> (...) @d2()
%v0 = extractelement <2 x double> %call, i32 0
%v1 = extractelement <2 x double> %call, i32 1
%add1 = fadd double %v0, %v1
ret double %add1
; CHECK-LABEL: call_d2:
; CHECK: call16(d2)
; CHECK: addiu $4, $sp, [[O0:[0-9]+]]
; CHECK-DAG: ldc1 $f[[F0:[0-9]+]], 24($sp)
; CHECK-DAG: ldc1 $f[[F1:[0-9]+]], [[O0]]($sp)
; CHECK: add.d $f0, $f[[F1]], $f[[F0]]
}
; Check that function returns vector on stack in cases when vector can't be
; returned in registers. Also check that vector is placed on stack starting
; from the address in register $4.
define <8 x i32> @return_i8() {
entry:
ret <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
; CHECK-LABEL: return_i8:
; CHECK: sw $[[R0:[a-z0-9]+]], 28($4)
; CHECK: sw $[[R1:[a-z0-9]+]], 24($4)
; CHECK: sw $[[R2:[a-z0-9]+]], 20($4)
; CHECK: sw $[[R3:[a-z0-9]+]], 16($4)
; CHECK: sw $[[R4:[a-z0-9]+]], 12($4)
; CHECK: sw $[[R5:[a-z0-9]+]], 8($4)
; CHECK: sw $[[R6:[a-z0-9]+]], 4($4)
; CHECK: sw $[[R7:[a-z0-9]+]], 0($4)
}
define <4 x float> @return_f4(float %a, float %b, float %c, float %d) {
entry:
%vecins1 = insertelement <4 x float> undef, float %a, i32 0
%vecins2 = insertelement <4 x float> %vecins1, float %b, i32 1
%vecins3 = insertelement <4 x float> %vecins2, float %c, i32 2
%vecins4 = insertelement <4 x float> %vecins3, float %d, i32 3
ret <4 x float> %vecins4
; CHECK-LABEL: return_f4:
; CHECK-DAG: lwc1 $f[[R0:[0-9]+]], 16($sp)
; CHECK-DAG: swc1 $f[[R0]], 12($4)
; CHECK-DAG: sw $7, 8($4)
; CHECK-DAG: sw $6, 4($4)
; CHECK-DAG: sw $5, 0($4)
}
define <4 x double> @return_d4(double %a, double %b, double %c, double %d) {
entry:
%vecins1 = insertelement <4 x double> undef, double %a, i32 0
%vecins2 = insertelement <4 x double> %vecins1, double %b, i32 1
%vecins3 = insertelement <4 x double> %vecins2, double %c, i32 2
%vecins4 = insertelement <4 x double> %vecins3, double %d, i32 3
ret <4 x double> %vecins4
; CHECK-LABEL: return_d4:
; CHECK-DAG: sdc1 $[[R0:[a-z0-9]+]], 24($4)
; CHECK-DAG: sdc1 $[[R1:[a-z0-9]+]], 16($4)
; CHECK-DAG: sdc1 $[[R2:[a-z0-9]+]], 8($4)
; CHECK-DAG: sdc1 $[[R3:[a-z0-9]+]], 0($4)
}
; Check that function returns vector in registers in cases when vector can be
; returned in registers.
define <4 x i32> @return_i4() {
entry:
ret <4 x i32> <i32 0, i32 1, i32 2, i32 3>
; CHECK-LABEL: return_i4:
; CHECK: addiu $2, $zero, 0
; CHECK: addiu $3, $zero, 1
; CHECK: addiu $4, $zero, 2
; CHECK: addiu $5, $zero, 3
}
define <2 x float> @return_f2(float %a, float %b) {
entry:
%vecins1 = insertelement <2 x float> undef, float %a, i32 0
%vecins2 = insertelement <2 x float> %vecins1, float %b, i32 1
ret <2 x float> %vecins2
; CHECK-LABEL: return_f2:
; CHECK-DAG: sw $5, 0($4)
; CHECK-DAG: sw $6, 4($4)
}
define <2 x double> @return_d2(double %a, double %b) {
entry:
%vecins1 = insertelement <2 x double> undef, double %a, i32 0
%vecins2 = insertelement <2 x double> %vecins1, double %b, i32 1
ret <2 x double> %vecins2
; CHECK-LABEL: return_d2:
; CHECK-DAG: ldc1 $f[[F0:[0-9]]], 16($sp)
; CHECK-DAG: sdc1 $f[[F0]], 8($4)
; CHECK-DAG: mtc1 $6, $f[[F1:[0-9]+]]
; CHECK-DAG: mtc1 $7, $f
; CHECK-DAG: sdc1 $f[[F0]], 0($4)
}
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