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test/codegen: add riscv64 codegen for arithmetic tests

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Codify the current riscv64 code generation for various subtract from
constant and addition/subtraction tests.

Change-Id: I54ad923280a0578a338bc4431fa5bdc0644c4729
Reviewed-on: https://go-review.googlesource.com/c/go/+/652316
Reviewed-by: Meng Zhuo <mengzhuo1203@gmail.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Mark Ryan <markdryan@rivosinc.com>
Reviewed-by: David Chase <drchase@google.com>
This commit is contained in:
Joel Sing 2025-02-24 23:08:46 +11:00
parent c01fa0cc21
commit e1f9013a58
1 changed files with 10 additions and 0 deletions
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10
test/codegen/arithmetic.go
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@ -85,36 +85,42 @@ func SubMem(arr []int, b, c, d int) int {
func SubFromConst(a int) int { func SubFromConst(a int) int {
// ppc64x: `SUBC\tR[0-9]+,\s[$]40,\sR` // ppc64x: `SUBC\tR[0-9]+,\s[$]40,\sR`
// riscv64: "ADDI\t\\$-40","NEG"
b := 40 - a b := 40 - a
return b return b
} }
func SubFromConstNeg(a int) int { func SubFromConstNeg(a int) int {
// ppc64x: `ADD\t[$]40,\sR[0-9]+,\sR` // ppc64x: `ADD\t[$]40,\sR[0-9]+,\sR`
// riscv64: "NEG","ADDI\t\\$-40","NEG"
c := 40 - (-a) c := 40 - (-a)
return c return c
} }
func SubSubFromConst(a int) int { func SubSubFromConst(a int) int {
// ppc64x: `ADD\t[$]20,\sR[0-9]+,\sR` // ppc64x: `ADD\t[$]20,\sR[0-9]+,\sR`
// riscv64: "ADDI\t\\$20",-"NEG"
c := 40 - (20 - a) c := 40 - (20 - a)
return c return c
} }
func AddSubFromConst(a int) int { func AddSubFromConst(a int) int {
// ppc64x: `SUBC\tR[0-9]+,\s[$]60,\sR` // ppc64x: `SUBC\tR[0-9]+,\s[$]60,\sR`
// riscv64: "ADDI\t\\$-60","NEG"
c := 40 + (20 - a) c := 40 + (20 - a)
return c return c
} }
func NegSubFromConst(a int) int { func NegSubFromConst(a int) int {
// ppc64x: `ADD\t[$]-20,\sR[0-9]+,\sR` // ppc64x: `ADD\t[$]-20,\sR[0-9]+,\sR`
// riscv64: "ADDI\t\\$-20"
c := -(20 - a) c := -(20 - a)
return c return c
} }
func NegAddFromConstNeg(a int) int { func NegAddFromConstNeg(a int) int {
// ppc64x: `SUBC\tR[0-9]+,\s[$]40,\sR` // ppc64x: `SUBC\tR[0-9]+,\s[$]40,\sR`
// riscv64: "ADDI\t\\$-40","NEG"
c := -(-40 + a) c := -(-40 + a)
return c return c
} }
@ -122,6 +128,7 @@ func NegAddFromConstNeg(a int) int {
func SubSubNegSimplify(a, b int) int { func SubSubNegSimplify(a, b int) int {
// amd64:"NEGQ" // amd64:"NEGQ"
// ppc64x:"NEG" // ppc64x:"NEG"
// riscv64:"NEG",-"SUB"
r := (a - b) - a r := (a - b) - a
return r return r
} }
@ -129,6 +136,7 @@ func SubSubNegSimplify(a, b int) int {
func SubAddSimplify(a, b int) int { func SubAddSimplify(a, b int) int {
// amd64:-"SUBQ",-"ADDQ" // amd64:-"SUBQ",-"ADDQ"
// ppc64x:-"SUB",-"ADD" // ppc64x:-"SUB",-"ADD"
// riscv64:-"SUB",-"ADD"
r := a + (b - a) r := a + (b - a)
return r return r
} }
@ -152,6 +160,7 @@ func SubAddSimplify2(a, b, c int) (int, int, int, int, int, int) {
func SubAddNegSimplify(a, b int) int { func SubAddNegSimplify(a, b int) int {
// amd64:"NEGQ",-"ADDQ",-"SUBQ" // amd64:"NEGQ",-"ADDQ",-"SUBQ"
// ppc64x:"NEG",-"ADD",-"SUB" // ppc64x:"NEG",-"ADD",-"SUB"
// riscv64:"NEG",-"ADD",-"SUB"
r := a - (b + a) r := a - (b + a)
return r return r
} }
@ -159,6 +168,7 @@ func SubAddNegSimplify(a, b int) int {
func AddAddSubSimplify(a, b, c int) int { func AddAddSubSimplify(a, b, c int) int {
// amd64:-"SUBQ" // amd64:-"SUBQ"
// ppc64x:-"SUB" // ppc64x:-"SUB"
// riscv64:"ADD","ADD",-"SUB"
r := a + (b + (c - a)) r := a + (b + (c - a))
return r return r
} }