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sat-arithmetic: add c backend support

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- modify AstGen binOpExt()/assignBinOpExt() to accept generic extended payload T
- rework Sema zirSatArithmetic() to use existing sema.analyzeArithmetic() by adding an `opt_extended` parameter.
- add airSatOp() to codegen/c.zig
- add saturating functions to src/link/C/zig.h
This commit is contained in:
Travis Staloch
2021-09-08 15:19:03 -07:00
committed by Andrew Kelley
parent 29f41896ed
commit b9a95f2dd9
5 changed files with 262 additions and 44 deletions
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6
src/codegen/llvm.zig
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@@ -2038,7 +2038,7 @@ pub const FuncGen = struct {
const rhs = try self.resolveInst(bin_op.rhs);
const inst_ty = self.air.typeOfIndex(inst);
if (inst_ty.isFloat()) return self.builder.buildFAdd(lhs, rhs, "");
if (inst_ty.isAnyFloat()) return self.builder.buildFAdd(lhs, rhs, "");
if (ty == .wrapping)
return self.builder.buildAdd(lhs, rhs, "")
else if (ty == .saturated) {
@@ -2060,7 +2060,7 @@ pub const FuncGen = struct {
const rhs = try self.resolveInst(bin_op.rhs);
const inst_ty = self.air.typeOfIndex(inst);
if (inst_ty.isFloat()) return self.builder.buildFSub(lhs, rhs, "");
if (inst_ty.isAnyFloat()) return self.builder.buildFSub(lhs, rhs, "");
if (ty == .wrapping)
return self.builder.buildSub(lhs, rhs, "")
else if (ty == .saturated) {
@@ -2082,7 +2082,7 @@ pub const FuncGen = struct {
const rhs = try self.resolveInst(bin_op.rhs);
const inst_ty = self.air.typeOfIndex(inst);
if (inst_ty.isFloat()) return self.builder.buildFMul(lhs, rhs, "");
if (inst_ty.isAnyFloat()) return self.builder.buildFMul(lhs, rhs, "");
if (ty == .wrapping)
return self.builder.buildMul(lhs, rhs, "")
else if (ty == .saturated) {