; RUN: llc -mtriple=mips-linux-gnu -relocation-model=static < %s | FileCheck --check-prefix=ALL --check-prefix=O32 --check-prefix=O32-BE %s
; RUN: llc -mtriple=mipsel-linux-gnu -relocation-model=static < %s | FileCheck --check-prefix=ALL --check-prefix=O32 --check-prefix=O32-LE %s
-; RUN-TODO: llc -mtriple=mips64-linux-gnu -relocation-model=static -mattr=-n64,+o32 < %s | FileCheck --check-prefix=ALL --check-prefix=O32 %s
-; RUN-TODO: llc -mtriple=mips64el-linux-gnu -relocation-model=static -mattr=-n64,+o32 < %s | FileCheck --check-prefix=ALL --check-prefix=O32 %s
+; RUN-TODO: llc -mtriple=mips64-linux-gnu -relocation-model=static -target-abi o32 < %s | FileCheck --check-prefix=ALL --check-prefix=O32 %s
+; RUN-TODO: llc -mtriple=mips64el-linux-gnu -relocation-model=static -target-abi o32 < %s | FileCheck --check-prefix=ALL --check-prefix=O32 %s
-; RUN: llc -mtriple=mips64-linux-gnu -relocation-model=static -mattr=-n64,+n32 < %s | FileCheck --check-prefix=ALL --check-prefix=N32 --check-prefix=N32-BE %s
-; RUN: llc -mtriple=mips64el-linux-gnu -relocation-model=static -mattr=-n64,+n32 < %s | FileCheck --check-prefix=ALL --check-prefix=N32 --check-prefix=N32-LE %s
+; RUN: llc -mtriple=mips64-linux-gnu -relocation-model=static -target-abi n32 < %s | FileCheck --check-prefix=ALL --check-prefix=N32 --check-prefix=N32-BE %s
+; RUN: llc -mtriple=mips64el-linux-gnu -relocation-model=static -target-abi n32 < %s | FileCheck --check-prefix=ALL --check-prefix=N32 --check-prefix=N32-LE %s
-; RUN: llc -mtriple=mips64-linux-gnu -relocation-model=static -mattr=-n64,+n64 < %s | FileCheck --check-prefix=ALL --check-prefix=N64 --check-prefix=N64-BE %s
-; RUN: llc -mtriple=mips64el-linux-gnu -relocation-model=static -mattr=-n64,+n64 < %s | FileCheck --check-prefix=ALL --check-prefix=N64 --check-prefix=N64-LE %s
+; RUN: llc -mtriple=mips64-linux-gnu -relocation-model=static -target-abi n64 < %s | FileCheck --check-prefix=ALL --check-prefix=N64 --check-prefix=N64-BE %s
+; RUN: llc -mtriple=mips64el-linux-gnu -relocation-model=static -target-abi n64 < %s | FileCheck --check-prefix=ALL --check-prefix=N64 --check-prefix=N64-LE %s
; Test struct returns for all ABI's and byte orders.
@struct_byte = global {i8} zeroinitializer
@struct_2byte = global {i8,i8} zeroinitializer
+@struct_3xi16 = global {[3 x i16]} zeroinitializer
+@struct_6xi32 = global {[6 x i32]} zeroinitializer
+@struct_128xi16 = global {[128 x i16]} zeroinitializer
declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, i64, i32, i1)
define inreg {i8} @ret_struct_i8() nounwind {
entry:
- %0 = load volatile {i8}* @struct_byte
+ %0 = load volatile {i8}, {i8}* @struct_byte
ret {i8} %0
}
entry:
%retval = alloca {i8,i8}, align 1
%0 = bitcast {i8,i8}* %retval to i8*
- call void @llvm.memcpy.p0i8.p0i8.i64(i8* %0, i8* getelementptr inbounds ({i8,i8}* @struct_2byte, i32 0, i32 0), i64 2, i32 1, i1 false)
+ call void @llvm.memcpy.p0i8.p0i8.i64(i8* %0, i8* getelementptr inbounds ({i8,i8}, {i8,i8}* @struct_2byte, i32 0, i32 0), i64 2, i32 1, i1 false)
%1 = bitcast {i8,i8}* %retval to {i16}*
- %2 = load volatile {i16}* %1
+ %2 = load volatile {i16}, {i16}* %1
ret {i16} %2
}
; N64-BE-DAG: sh [[R2]], 8([[SP:\$sp]])
; N64-BE-DAG: lh [[R3:\$[0-9]+]], 8([[SP:\$sp]])
; N64-BE-DAG: dsll $2, [[R3]], 48
+
+; Ensure that structures bigger than 32-bits but smaller than 64-bits are
+; also returned in the upper bits on big endian targets. Previously, these were
+; missed by the CCPromoteToType and the shift didn't happen.
+define inreg {i48} @ret_struct_3xi16() nounwind {
+entry:
+ %0 = load volatile i48, i48* bitcast ({[3 x i16]}* @struct_3xi16 to i48*), align 2
+ %1 = insertvalue {i48} undef, i48 %0, 0
+ ret {i48} %1
+}
+
+; ALL-LABEL: ret_struct_3xi16:
+
+; O32-BE-DAG: lui [[PTR_HI:\$[0-9]+]], %hi(struct_3xi16)
+; O32-BE-DAG: addiu [[PTR_LO:\$[0-9]+]], [[PTR_HI]], %lo(struct_3xi16)
+; O32-BE-DAG: lhu [[R1:\$[0-9]+]], 4([[PTR_LO]])
+; O32-BE-DAG: lw [[R2:\$[0-9]+]], %lo(struct_3xi16)([[PTR_HI]])
+; O32-BE-DAG: sll [[R3:\$[0-9]+]], [[R2]], 16
+; O32-BE-DAG: or $3, [[R1]], [[R3]]
+; O32-BE-DAG: srl $2, [[R2]], 16
+
+; O32-LE-DAG: lui [[PTR_HI:\$[0-9]+]], %hi(struct_3xi16)
+; O32-LE-DAG: addiu [[PTR_LO:\$[0-9]+]], [[PTR_HI]], %lo(struct_3xi16)
+; O32-LE-DAG: lhu $3, 4([[PTR_LO]])
+; O32-LE-DAG: lw $2, %lo(struct_3xi16)([[PTR_HI]])
+
+; N32-LE-DAG: lui [[PTR_HI:\$[0-9]+]], %hi(struct_3xi16)
+; N32-LE-DAG: addiu [[PTR_LO:\$[0-9]+]], [[PTR_HI]], %lo(struct_3xi16)
+; N32-LE-DAG: lh [[R1:\$[0-9]+]], 4([[PTR_LO]])
+; N32-LE-DAG: lwu [[R2:\$[0-9]+]], %lo(struct_3xi16)([[PTR_HI]])
+; N32-LE-DAG: dsll [[R3:\$[0-9]+]], [[R1]], 32
+; N32-LE-DAG: or $2, [[R2]], [[R3]]
+
+; N32-BE-DAG: lui [[PTR_HI:\$[0-9]+]], %hi(struct_3xi16)
+; N32-BE-DAG: addiu [[PTR_LO:\$[0-9]+]], [[PTR_HI]], %lo(struct_3xi16)
+; N32-BE-DAG: lw [[R1:\$[0-9]+]], %lo(struct_3xi16)([[PTR_HI]])
+; N32-BE-DAG: dsll [[R2:\$[0-9]+]], [[R1]], 16
+; N32-BE-DAG: lhu [[R3:\$[0-9]+]], 4([[PTR_LO]])
+; N32-BE-DAG: or [[R4:\$[0-9]+]], [[R3]], [[R2]]
+; N32-BE-DAG: dsll $2, [[R4]], 16
+
+; N64-LE-DAG: ld [[PTR:\$[0-9]+]], %got_disp(struct_3xi16)($1)
+; N64-LE-DAG: lh [[R1:\$[0-9]+]], 4([[PTR]])
+; N64-LE-DAG: lwu [[R2:\$[0-9]+]], 0([[PTR]])
+; N64-LE-DAG: dsll [[R3:\$[0-9]+]], [[R1]], 32
+; N64-LE-DAG: or $2, [[R2]], [[R3]]
+
+; N64-BE-DAG: ld [[PTR:\$[0-9]+]], %got_disp(struct_3xi16)($1)
+; N64-BE-DAG: lw [[R1:\$[0-9]+]], 0([[PTR]])
+; N64-BE-DAG: dsll [[R2:\$[0-9]+]], [[R1]], 16
+; N64-BE-DAG: lhu [[R3:\$[0-9]+]], 4([[PTR]])
+; N64-BE-DAG: or [[R4:\$[0-9]+]], [[R3]], [[R2]]
+; N32-BE-DAG: dsll $2, [[R4]], 16
+
+; Ensure that large structures (>128-bit) are returned indirectly.
+; We pick an extremely large structure so we don't have to match inlined memcpy's.
+define void @ret_struct_128xi16({[128 x i16]}* sret %returnval) {
+entry:
+ %0 = bitcast {[128 x i16]}* %returnval to i8*
+ call void @llvm.memcpy.p0i8.p0i8.i64(i8* %0, i8* bitcast ({[128 x i16]}* @struct_128xi16 to i8*), i64 256, i32 2, i1 false)
+ ret void
+}
+
+; ALL-LABEL: ret_struct_128xi16:
+
+; sret pointer is already in $4
+; O32-DAG: lui [[PTR:\$[0-9]+]], %hi(struct_128xi16)
+; O32-DAG: addiu $5, [[PTR]], %lo(struct_128xi16)
+; O32: jal memcpy
+
+; sret pointer is already in $4
+; N32-DAG: lui [[PTR_HI:\$[0-9]+]], %hi(struct_128xi16)
+; N32-DAG: addiu [[PTR:\$[0-9]+]], [[PTR_HI]], %lo(struct_128xi16)
+; FIXME: This signext isn't necessary. Like integers, pointers are
+; but unlike integers, pointers cannot have the signext attribute.
+; N32-DAG: sll $5, [[PTR]], 0
+; N32: jal memcpy
+
+; sret pointer is already in $4
+; N64-DAG: ld $5, %got_disp(struct_128xi16)(
+; N64-DAG: ld $25, %call16(memcpy)(
+; N64: jalr $25
+
+; Ensure that large structures (>128-bit) are returned indirectly.
+; This will generate inlined memcpy's anyway so pick the smallest large
+; structure
+; This time we let the backend lower the sret argument.
+define {[6 x i32]} @ret_struct_6xi32() {
+entry:
+ %0 = load volatile {[6 x i32]}, {[6 x i32]}* @struct_6xi32, align 2
+ ret {[6 x i32]} %0
+}
+
+; ALL-LABEL: ret_struct_6xi32:
+
+; sret pointer is already in $4
+; O32-DAG: lui [[PTR_HI:\$[0-9]+]], %hi(struct_6xi32)
+; O32-DAG: addiu [[PTR:\$[0-9]+]], [[PTR_HI]], %lo(struct_6xi32)
+; O32-DAG: lw [[T0:\$[0-9]+]], %lo(struct_6xi32)([[PTR]])
+; O32-DAG: lw [[T1:\$[0-9]+]], 4([[PTR]])
+; O32-DAG: lw [[T2:\$[0-9]+]], 8([[PTR]])
+; O32-DAG: lw [[T3:\$[0-9]+]], 12([[PTR]])
+; O32-DAG: lw [[T4:\$[0-9]+]], 16([[PTR]])
+; O32-DAG: lw [[T5:\$[0-9]+]], 20([[PTR]])
+; O32-DAG: sw [[T0]], 0($4)
+; O32-DAG: sw [[T1]], 4($4)
+; O32-DAG: sw [[T2]], 8($4)
+; O32-DAG: sw [[T3]], 12($4)
+; O32-DAG: sw [[T4]], 16($4)
+; O32-DAG: sw [[T5]], 20($4)
+
+; FIXME: This signext isn't necessary. Like integers, pointers are
+; but unlike integers, pointers cannot have the signext attribute.
+; In this case we don't have anywhere to put the signext either since
+; the sret argument is invented by the backend.
+; N32-DAG: sll [[RET_PTR:\$[0-9]+]], $4, 0
+; N32-DAG: lui [[PTR_HI:\$[0-9]+]], %hi(struct_6xi32)
+; N32-DAG: addiu [[PTR:\$[0-9]+]], [[PTR_HI]], %lo(struct_6xi32)
+; N32-DAG: lw [[T0:\$[0-9]+]], %lo(struct_6xi32)([[PTR]])
+; N32-DAG: lw [[T1:\$[0-9]+]], 4([[PTR]])
+; N32-DAG: lw [[T2:\$[0-9]+]], 8([[PTR]])
+; N32-DAG: lw [[T3:\$[0-9]+]], 12([[PTR]])
+; N32-DAG: lw [[T4:\$[0-9]+]], 16([[PTR]])
+; N32-DAG: lw [[T5:\$[0-9]+]], 20([[PTR]])
+; N32-DAG: sw [[T0]], 0([[RET_PTR]])
+; N32-DAG: sw [[T1]], 4([[RET_PTR]])
+; N32-DAG: sw [[T2]], 8([[RET_PTR]])
+; N32-DAG: sw [[T3]], 12([[RET_PTR]])
+; N32-DAG: sw [[T4]], 16([[RET_PTR]])
+; N32-DAG: sw [[T5]], 20([[RET_PTR]])
+
+; sret pointer is already in $4
+; N64-DAG: ld [[PTR:\$[0-9]+]], %got_disp(struct_6xi32)(
+; N64-DAG: lw [[T0:\$[0-9]+]], 0([[PTR]])
+; N64-DAG: lw [[T1:\$[0-9]+]], 4([[PTR]])
+; N64-DAG: lw [[T2:\$[0-9]+]], 8([[PTR]])
+; N64-DAG: lw [[T3:\$[0-9]+]], 12([[PTR]])
+; N64-DAG: lw [[T4:\$[0-9]+]], 16([[PTR]])
+; N64-DAG: lw [[T5:\$[0-9]+]], 20([[PTR]])
+; N64-DAG: sw [[T0]], 0($4)
+; N64-DAG: sw [[T1]], 4($4)
+; N64-DAG: sw [[T2]], 8($4)
+; N64-DAG: sw [[T3]], 12($4)
+; N64-DAG: sw [[T4]], 16($4)
+; N64-DAG: sw [[T5]], 20($4)
projects / oota-llvm.git / blobdiff