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aarch64: Implement isub for i128 operands

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This commit is contained in:
Afonso Bordado
2021-05-22 21:22:05 +01:00
parent d3b525fa29
commit a2e74b2c45
6 changed files with 109 additions and 27 deletions
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21
cranelift/filetests/filetests/isa/aarch64/arithmetic-run.clif
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@@ -2,7 +2,7 @@ test run
target aarch64
; i128 tests
; TODO: It would be nice if we had native support for i128 immediates in CLIF's parser
; TODO: Cleanup these tests when we have native support for i128 immediates in CLIF's parser
function %i128_const_0() -> i64, i64 {
block0:
v1 = iconst.i128 0
@@ -36,4 +36,21 @@ block0(v0: i64,v1: i64,v2: i64,v3: i64):
; run: %add_i128(1, 0, 0, 0) == [1, 0]
; run: %add_i128(1, 0, 1, 0) == [2, 0]
; run: %add_i128(1, 0, -1, -1) == [0, 0]
; run: %add_i128(-1, 0, 1, 0) == [0, 1]
; run: %add_i128(-1, 0, 1, 0) == [0, 1]
function %sub_i128(i64, i64, i64, i64) -> i64, i64 {
block0(v0: i64,v1: i64,v2: i64,v3: i64):
v4 = iconcat v0, v1
v5 = iconcat v2, v3
v6 = isub v4, v5
v7, v8 = isplit v6
return v7, v8
}
; run: %sub_i128(0, 0, 0, 0) == [0, 0]
; run: %sub_i128(1, 0, 1, 0) == [0, 0]
; run: %sub_i128(1, 0, 0, 0) == [1, 0]
; run: %sub_i128(0, 0, 1, 0) == [-1, -1]
; run: %sub_i128(0, 0, -1, -1) == [1, 0]

13
cranelift/filetests/filetests/isa/aarch64/arithmetic.clif
View File

@@ -440,3 +440,16 @@ block0(v0: i128, v1: i128):
; nextln: ldp fp, lr, [sp], #16
; nextln: ret
function %sub_i128(i128, i128) -> i128 {
block0(v0: i128, v1: i128):
v2 = isub v0, v1
return v2
}
; check: stp fp, lr, [sp, #-16]!
; nextln: mov fp, sp
; nextln: subs x0, x0, x2
; nextln: sbc x1, x1, x3
; nextln: ldp fp, lr, [sp], #16
; nextln: ret