Files
clang-p2996/llvm/test/CodeGen/Mips/msa/frameindex.ll
Simon Dardis 725acb2d91 [mips] Use register scavenging with MSA.
MSA stores and loads to the stack are more likely to require an
emergency GPR spill slot due to the smaller offsets available
with those instructions.

Handle this by overestimating the size of the stack by determining
the largest offset presuming that all callee save registers are
spilled and accounting of incoming arguments when determining
whether an emergency spill slot is required.

Reviewers: atanasyan

Differential Revision: https://reviews.llvm.org/D39056

llvm-svn: 317204
2017-11-02 12:47:22 +00:00

410 lines
14 KiB
LLVM

; RUN: llc -march=mips -mattr=+msa,+fp64 < %s | FileCheck -check-prefixes=MIPS32-AE,MIPS32-BE %s
; RUN: llc -march=mipsel -mattr=+msa,+fp64 < %s | FileCheck -check-prefixes=MIPS32-AE,MIPS32-LE %s
define void @loadstore_v16i8_near() nounwind {
; MIPS32-AE: loadstore_v16i8_near:
%1 = alloca <16 x i8>
%2 = load volatile <16 x i8>, <16 x i8>* %1
; MIPS32-AE: ld.b [[R1:\$w[0-9]+]], 0($sp)
store volatile <16 x i8> %2, <16 x i8>* %1
; MIPS32-AE: st.b [[R1]], 0($sp)
ret void
; MIPS32-AE: .size loadstore_v16i8_near
}
define void @loadstore_v16i8_just_under_simm10() nounwind {
; MIPS32-AE: loadstore_v16i8_just_under_simm10:
%1 = alloca <16 x i8>
%2 = alloca [492 x i8] ; Push the frame--acounting for the emergency spill
; slot--right up to 512 bytes
%3 = load volatile <16 x i8>, <16 x i8>* %1
; MIPS32-AE: ld.b [[R1:\$w[0-9]+]], 496($sp)
store volatile <16 x i8> %3, <16 x i8>* %1
; MIPS32-AE: st.b [[R1]], 496($sp)
ret void
; MIPS32-AE: .size loadstore_v16i8_just_under_simm10
}
define void @loadstore_v16i8_just_over_simm10() nounwind {
; MIPS32-AE: loadstore_v16i8_just_over_simm10:
%1 = alloca <16 x i8>
%2 = alloca [497 x i8] ; Push the frame--acounting for the emergency spill
; slot--right up to 512 bytes
%3 = load volatile <16 x i8>, <16 x i8>* %1
; MIPS32-AE: addiu [[BASE:\$([0-9]+|gp)]], $sp, 512
; MIPS32-AE: ld.b [[R1:\$w[0-9]+]], 0([[BASE]])
store volatile <16 x i8> %3, <16 x i8>* %1
; MIPS32-AE: addiu [[BASE:\$([0-9]+|gp)]], $sp, 512
; MIPS32-AE: st.b [[R1]], 0([[BASE]])
ret void
; MIPS32-AE: .size loadstore_v16i8_just_over_simm10
}
define void @loadstore_v16i8_just_under_simm16() nounwind {
; MIPS32-AE: loadstore_v16i8_just_under_simm16:
%1 = alloca <16 x i8>
%2 = alloca [32752 x i8] ; Push the frame--acounting for the emergency spill
; slot--right up to 32768 bytes
%3 = load volatile <16 x i8>, <16 x i8>* %1
; MIPS32-AE: ori [[R2:\$([0-9]+|gp)]], $zero, 32768
; MIPS32-AE: addu [[BASE:\$([0-9]+|gp)]], $sp, [[R2]]
; MIPS32-AE: ld.b [[R1:\$w[0-9]+]], 0([[BASE]])
store volatile <16 x i8> %3, <16 x i8>* %1
; MIPS32-AE: ori [[R2:\$([0-9]+|gp)]], $zero, 32768
; MIPS32-AE: addu [[BASE:\$([0-9]+|gp)]], $sp, [[R2]]
; MIPS32-AE: st.b [[R1]], 0([[BASE]])
ret void
; MIPS32-AE: .size loadstore_v16i8_just_under_simm16
}
define void @loadstore_v16i8_just_over_simm16() nounwind {
; MIPS32-AE: loadstore_v16i8_just_over_simm16:
%1 = alloca <16 x i8>
%2 = alloca [32753 x i8] ; Push the frame--acounting for the emergency spill
; slot--just over 32768 bytes
%3 = load volatile <16 x i8>, <16 x i8>* %1
; MIPS32-AE: ori [[R2:\$([0-9]+|gp)]], $zero, 32768
; MIPS32-AE: addu [[BASE:\$([0-9]+|gp)]], $sp, [[R2]]
; MIPS32-AE: ld.b [[R1:\$w[0-9]+]], 0([[BASE]])
store volatile <16 x i8> %3, <16 x i8>* %1
; MIPS32-AE: ori [[R2:\$([0-9]+|gp)]], $zero, 32768
; MIPS32-AE: addu [[BASE:\$([0-9]+|gp)]], $sp, [[R2]]
; MIPS32-AE: st.b [[R1]], 0([[BASE]])
ret void
; MIPS32-AE: .size loadstore_v16i8_just_over_simm16
}
define void @loadstore_v8i16_near() nounwind {
; MIPS32-AE: loadstore_v8i16_near:
%1 = alloca <8 x i16>
%2 = load volatile <8 x i16>, <8 x i16>* %1
; MIPS32-AE: ld.h [[R1:\$w[0-9]+]], 0($sp)
store volatile <8 x i16> %2, <8 x i16>* %1
; MIPS32-AE: st.h [[R1]], 0($sp)
ret void
; MIPS32-AE: .size loadstore_v8i16_near
}
define void @loadstore_v8i16_unaligned() nounwind {
; MIPS32-AE: loadstore_v8i16_unaligned:
%1 = alloca [2 x <8 x i16>]
%2 = bitcast [2 x <8 x i16>]* %1 to i8*
%3 = getelementptr i8, i8* %2, i32 1
%4 = bitcast i8* %3 to [2 x <8 x i16>]*
%5 = getelementptr [2 x <8 x i16>], [2 x <8 x i16>]* %4, i32 0, i32 0
%6 = load volatile <8 x i16>, <8 x i16>* %5
; MIPS32-AE: addiu [[BASE:\$([0-9]+|gp)]], $sp, 1
; MIPS32-AE: ld.h [[R1:\$w[0-9]+]], 0([[BASE]])
store volatile <8 x i16> %6, <8 x i16>* %5
; MIPS32-AE: addiu [[BASE:\$([0-9]+|gp)]], $sp, 1
; MIPS32-AE: st.h [[R1]], 0([[BASE]])
ret void
; MIPS32-AE: .size loadstore_v8i16_unaligned
}
define void @loadstore_v8i16_just_under_simm10() nounwind {
; MIPS32-AE: loadstore_v8i16_just_under_simm10:
%1 = alloca <8 x i16>
%2 = alloca [1004 x i8] ; Push the frame--acounting for the emergency spill
; slot--right up to 1024 bytes
%3 = load volatile <8 x i16>, <8 x i16>* %1
; MIPS32-AE: ld.h [[R1:\$w[0-9]+]], 1008($sp)
store volatile <8 x i16> %3, <8 x i16>* %1
; MIPS32-AE: st.h [[R1]], 1008($sp)
ret void
; MIPS32-AE: .size loadstore_v8i16_just_under_simm10
}
define void @loadstore_v8i16_just_over_simm10() nounwind {
; MIPS32-AE: loadstore_v8i16_just_over_simm10:
%1 = alloca <8 x i16>
%2 = alloca [1009 x i8] ; Push the frame--acounting for the emergency spill
; slot--just over 1024 bytes
%3 = load volatile <8 x i16>, <8 x i16>* %1
; MIPS32-AE: addiu [[BASE:\$([0-9]+|gp)]], $sp, 1024
; MIPS32-AE: ld.h [[R1:\$w[0-9]+]], 0([[BASE]])
store volatile <8 x i16> %3, <8 x i16>* %1
; MIPS32-AE: addiu [[BASE:\$([0-9]+|gp)]], $sp, 1024
; MIPS32-AE: st.h [[R1]], 0([[BASE]])
ret void
; MIPS32-AE: .size loadstore_v8i16_just_over_simm10
}
define void @loadstore_v8i16_just_under_simm16() nounwind {
; MIPS32-AE: loadstore_v8i16_just_under_simm16:
%1 = alloca <8 x i16>
%2 = alloca [32752 x i8] ; Push the frame--acounting for the emergency spill
; slot--right up to 32768 bytes
%3 = load volatile <8 x i16>, <8 x i16>* %1
; MIPS32-AE: ori [[R2:\$([0-9]+|gp)]], $zero, 32768
; MIPS32-AE: addu [[BASE:\$([0-9]+|gp)]], $sp, [[R2]]
; MIPS32-AE: ld.h [[R1:\$w[0-9]+]], 0([[BASE]])
store volatile <8 x i16> %3, <8 x i16>* %1
; MIPS32-AE: ori [[R2:\$([0-9]+|gp)]], $zero, 32768
; MIPS32-AE: addu [[BASE:\$([0-9]+|gp)]], $sp, [[R2]]
; MIPS32-AE: st.h [[R1]], 0([[BASE]])
ret void
; MIPS32-AE: .size loadstore_v8i16_just_under_simm16
}
define void @loadstore_v8i16_just_over_simm16() nounwind {
; MIPS32-AE: loadstore_v8i16_just_over_simm16:
%1 = alloca <8 x i16>
%2 = alloca [32753 x i8] ; Push the frame--acounting for the emergency spill
; slot--just over 32768 bytes
%3 = load volatile <8 x i16>, <8 x i16>* %1
; MIPS32-AE: ori [[R2:\$([0-9]+|gp)]], $zero, 32768
; MIPS32-AE: addu [[BASE:\$([0-9]+|gp)]], $sp, [[R2]]
; MIPS32-AE: ld.h [[R1:\$w[0-9]+]], 0([[BASE]])
store volatile <8 x i16> %3, <8 x i16>* %1
; MIPS32-AE: ori [[R2:\$([0-9]+|gp)]], $zero, 32768
; MIPS32-AE: addu [[BASE:\$([0-9]+|gp)]], $sp, [[R2]]
; MIPS32-AE: st.h [[R1]], 0([[BASE]])
ret void
; MIPS32-AE: .size loadstore_v8i16_just_over_simm16
}
define void @loadstore_v4i32_near() nounwind {
; MIPS32-AE: loadstore_v4i32_near:
%1 = alloca <4 x i32>
%2 = load volatile <4 x i32>, <4 x i32>* %1
; MIPS32-AE: ld.w [[R1:\$w[0-9]+]], 0($sp)
store volatile <4 x i32> %2, <4 x i32>* %1
; MIPS32-AE: st.w [[R1]], 0($sp)
ret void
; MIPS32-AE: .size loadstore_v4i32_near
}
define void @loadstore_v4i32_unaligned() nounwind {
; MIPS32-AE: loadstore_v4i32_unaligned:
%1 = alloca [2 x <4 x i32>]
%2 = bitcast [2 x <4 x i32>]* %1 to i8*
%3 = getelementptr i8, i8* %2, i32 1
%4 = bitcast i8* %3 to [2 x <4 x i32>]*
%5 = getelementptr [2 x <4 x i32>], [2 x <4 x i32>]* %4, i32 0, i32 0
%6 = load volatile <4 x i32>, <4 x i32>* %5
; MIPS32-AE: addiu [[BASE:\$([0-9]+|gp)]], $sp, 1
; MIPS32-AE: ld.w [[R1:\$w[0-9]+]], 0([[BASE]])
store volatile <4 x i32> %6, <4 x i32>* %5
; MIPS32-AE: addiu [[BASE:\$([0-9]+|gp)]], $sp, 1
; MIPS32-AE: st.w [[R1]], 0([[BASE]])
ret void
; MIPS32-AE: .size loadstore_v4i32_unaligned
}
define void @loadstore_v4i32_just_under_simm10() nounwind {
; MIPS32-AE: loadstore_v4i32_just_under_simm10:
%1 = alloca <4 x i32>
%2 = alloca [2028 x i8] ; Push the frame--acounting for the emergency spill
; slot--right up to 2048 bytes
%3 = load volatile <4 x i32>, <4 x i32>* %1
; MIPS32-AE: ld.w [[R1:\$w[0-9]+]], 2032($sp)
store volatile <4 x i32> %3, <4 x i32>* %1
; MIPS32-AE: st.w [[R1]], 2032($sp)
ret void
; MIPS32-AE: .size loadstore_v4i32_just_under_simm10
}
define void @loadstore_v4i32_just_over_simm10() nounwind {
; MIPS32-AE: loadstore_v4i32_just_over_simm10:
%1 = alloca <4 x i32>
%2 = alloca [2033 x i8] ; Push the frame--acounting for the emergency spill
; slot--just over 2048 bytes
%3 = load volatile <4 x i32>, <4 x i32>* %1
; MIPS32-AE: addiu [[BASE:\$([0-9]+|gp)]], $sp, 2048
; MIPS32-AE: ld.w [[R1:\$w[0-9]+]], 0([[BASE]])
store volatile <4 x i32> %3, <4 x i32>* %1
; MIPS32-AE: addiu [[BASE:\$([0-9]+|gp)]], $sp, 2048
; MIPS32-AE: st.w [[R1]], 0([[BASE]])
ret void
; MIPS32-AE: .size loadstore_v4i32_just_over_simm10
}
define void @loadstore_v4i32_just_under_simm16() nounwind {
; MIPS32-AE: loadstore_v4i32_just_under_simm16:
%1 = alloca <4 x i32>
%2 = alloca [32752 x i8] ; Push the frame--acounting for the emergency spill
; slot-- right up to 32768 bytes
%3 = load volatile <4 x i32>, <4 x i32>* %1
; MIPS32-AE: ori [[R2:\$([0-9]+|gp)]], $zero, 32768
; MIPS32-AE: addu [[BASE:\$([0-9]+|gp)]], $sp, [[R2]]
; MIPS32-AE: ld.w [[R1:\$w[0-9]+]], 0([[BASE]])
store volatile <4 x i32> %3, <4 x i32>* %1
; MIPS32-AE: ori [[R2:\$([0-9]+|gp)]], $zero, 32768
; MIPS32-AE: addu [[BASE:\$([0-9]+|gp)]], $sp, [[R2]]
; MIPS32-AE: st.w [[R1]], 0([[BASE]])
ret void
; MIPS32-AE: .size loadstore_v4i32_just_under_simm16
}
define void @loadstore_v4i32_just_over_simm16() nounwind {
; MIPS32-AE: loadstore_v4i32_just_over_simm16:
%1 = alloca <4 x i32>
%2 = alloca [32753 x i8] ; Push the frame--acounting for the emergency spill
; slot--just over 32768 bytes
%3 = load volatile <4 x i32>, <4 x i32>* %1
; MIPS32-AE: ori [[R2:\$([0-9]+|gp)]], $zero, 32768
; MIPS32-AE: addu [[BASE:\$([0-9]+|gp)]], $sp, [[R2]]
; MIPS32-AE: ld.w [[R1:\$w[0-9]+]], 0([[BASE]])
store volatile <4 x i32> %3, <4 x i32>* %1
; MIPS32-AE: ori [[R2:\$([0-9]+|gp)]], $zero, 32768
; MIPS32-AE: addu [[BASE:\$([0-9]+|gp)]], $sp, [[R2]]
; MIPS32-AE: st.w [[R1]], 0([[BASE]])
ret void
; MIPS32-AE: .size loadstore_v4i32_just_over_simm16
}
define void @loadstore_v2i64_near() nounwind {
; MIPS32-AE: loadstore_v2i64_near:
%1 = alloca <2 x i64>
%2 = load volatile <2 x i64>, <2 x i64>* %1
; MIPS32-AE: ld.d [[R1:\$w[0-9]+]], 0($sp)
store volatile <2 x i64> %2, <2 x i64>* %1
; MIPS32-AE: st.d [[R1]], 0($sp)
ret void
; MIPS32-AE: .size loadstore_v2i64_near
}
define void @loadstore_v2i64_unaligned() nounwind {
; MIPS32-AE: loadstore_v2i64_unaligned:
%1 = alloca [2 x <2 x i64>]
%2 = bitcast [2 x <2 x i64>]* %1 to i8*
%3 = getelementptr i8, i8* %2, i32 1
%4 = bitcast i8* %3 to [2 x <2 x i64>]*
%5 = getelementptr [2 x <2 x i64>], [2 x <2 x i64>]* %4, i32 0, i32 0
%6 = load volatile <2 x i64>, <2 x i64>* %5
; MIPS32-AE: addiu [[BASE:\$([0-9]+|gp)]], $sp, 1
; MIPS32-AE: ld.d [[R1:\$w[0-9]+]], 0([[BASE]])
store volatile <2 x i64> %6, <2 x i64>* %5
; MIPS32-AE: addiu [[BASE:\$([0-9]+|gp)]], $sp, 1
; MIPS32-AE: st.d [[R1]], 0([[BASE]])
ret void
; MIPS32-AE: .size loadstore_v2i64_unaligned
}
define void @loadstore_v2i64_just_under_simm10() nounwind {
; MIPS32-AE: loadstore_v2i64_just_under_simm10:
%1 = alloca <2 x i64>
%2 = alloca [4076 x i8] ; Push the frame--acounting for the emergency spill
; slot--right up to 4096 bytes
%3 = load volatile <2 x i64>, <2 x i64>* %1
; MIPS32-AE: ld.d [[R1:\$w[0-9]+]], 4080($sp)
store volatile <2 x i64> %3, <2 x i64>* %1
; MIPS32-AE: st.d [[R1]], 4080($sp)
ret void
; MIPS32-AE: .size loadstore_v2i64_just_under_simm10
}
define void @loadstore_v2i64_just_over_simm10() nounwind {
; MIPS32-AE: loadstore_v2i64_just_over_simm10:
%1 = alloca <2 x i64>
%2 = alloca [4081 x i8] ; Push the frame--acounting for the emergency spill
; slot--just over 4096 bytes
%3 = load volatile <2 x i64>, <2 x i64>* %1
; MIPS32-AE: addiu [[BASE:\$([0-9]+|gp)]], $sp, 4096
; MIPS32-AE: ld.d [[R1:\$w[0-9]+]], 0([[BASE]])
store volatile <2 x i64> %3, <2 x i64>* %1
; MIPS32-AE: addiu [[BASE:\$([0-9]+|gp)]], $sp, 4096
; MIPS32-AE: st.d [[R1]], 0([[BASE]])
ret void
; MIPS32-AE: .size loadstore_v2i64_just_over_simm10
}
define void @loadstore_v2i64_just_under_simm16() nounwind {
; MIPS32-AE: loadstore_v2i64_just_under_simm16:
%1 = alloca <2 x i64>
%2 = alloca [32752 x i8] ; Push the frame--acounting for the emergency spill
; slot--right up to 32768 bytes
%3 = load volatile <2 x i64>, <2 x i64>* %1
; MIPS32-AE: ori [[R2:\$([0-9]+|gp)]], $zero, 32768
; MIPS32-AE: addu [[BASE:\$([0-9]+|gp)]], $sp, [[R2]]
; MIPS32-AE: ld.d [[R1:\$w[0-9]+]], 0([[BASE]])
store volatile <2 x i64> %3, <2 x i64>* %1
; MIPS32-AE: ori [[R2:\$([0-9]+|gp)]], $zero, 32768
; MIPS32-AE: addu [[BASE:\$([0-9]+|gp)]], $sp, [[R2]]
; MIPS32-AE: st.d [[R1]], 0([[BASE]])
ret void
; MIPS32-AE: .size loadstore_v2i64_just_under_simm16
}
define void @loadstore_v2i64_just_over_simm16() nounwind {
; MIPS32-AE: loadstore_v2i64_just_over_simm16:
%1 = alloca <2 x i64>
%2 = alloca [32753 x i8] ; Push the frame--acounting for the emergency spill
; slot--just over 32768 bytes
%3 = load volatile <2 x i64>, <2 x i64>* %1
; MIPS32-AE: ori [[R2:\$([0-9]+|gp)]], $zero, 32768
; MIPS32-AE: addu [[BASE:\$([0-9]+|gp)]], $sp, [[R2]]
; MIPS32-AE: ld.d [[R1:\$w[0-9]+]], 0([[BASE]])
store volatile <2 x i64> %3, <2 x i64>* %1
; MIPS32-AE: ori [[R2:\$([0-9]+|gp)]], $zero, 32768
; MIPS32-AE: addu [[BASE:\$([0-9]+|gp)]], $sp, [[R2]]
; MIPS32-AE: st.d [[R1]], 0([[BASE]])
ret void
; MIPS32-AE: .size loadstore_v2i64_just_over_simm16
}