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llvm: Update the list of targets that use native f16/f128.

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Closes #22003.
Closes #22013.
This commit is contained in:
Alex Rønne Petersen
2025-03-10 07:00:41 +01:00
parent cf9c6f5298
commit 858305385d
2 changed files with 33 additions and 24 deletions
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27
src/codegen/llvm.zig
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@@ -12472,21 +12472,21 @@ fn backendSupportsF80(target: std.Target) bool {
/// or if it produces miscompilations.
fn backendSupportsF16(target: std.Target) bool {
return switch (target.cpu.arch) {
// LoongArch can be removed from this list with LLVM 20.
.loongarch32,
.loongarch64,
// https://github.com/llvm/llvm-project/issues/97981
.csky,
// https://github.com/llvm/llvm-project/issues/97981
.hexagon,
// https://github.com/llvm/llvm-project/issues/97981
.powerpc,
.powerpcle,
.powerpc64,
.powerpc64le,
// https://github.com/llvm/llvm-project/issues/97981
.wasm32,
.wasm64,
.mips,
.mipsel,
.mips64,
.mips64el,
// https://github.com/llvm/llvm-project/issues/50374
.s390x,
// https://github.com/llvm/llvm-project/issues/97981
.sparc,
.sparc64,
=> false,
@@ -12494,7 +12494,8 @@ fn backendSupportsF16(target: std.Target) bool {
.armeb,
.thumb,
.thumbeb,
=> target.abi.float() == .soft or std.Target.arm.featureSetHas(target.cpu.features, .fp_armv8),
=> target.abi.float() == .soft or std.Target.arm.featureSetHas(target.cpu.features, .fullfp16),
// https://github.com/llvm/llvm-project/issues/129394
.aarch64,
.aarch64_be,
=> std.Target.aarch64.featureSetHas(target.cpu.features, .fp_armv8),
@@ -12507,11 +12508,18 @@ fn backendSupportsF16(target: std.Target) bool {
/// or if it produces miscompilations.
fn backendSupportsF128(target: std.Target) bool {
return switch (target.cpu.arch) {
// https://github.com/llvm/llvm-project/issues/121122
.amdgcn,
// Test failures all over the place.
.mips64,
.mips64el,
// https://github.com/llvm/llvm-project/issues/95471
.nvptx,
.nvptx64,
// https://github.com/llvm/llvm-project/issues/41838
.sparc,
=> false,
// https://github.com/llvm/llvm-project/issues/101545
.powerpc,
.powerpcle,
.powerpc64,
@@ -12522,9 +12530,6 @@ fn backendSupportsF128(target: std.Target) bool {
.thumb,
.thumbeb,
=> target.abi.float() == .soft or std.Target.arm.featureSetHas(target.cpu.features, .fp_armv8),
.aarch64,
.aarch64_be,
=> std.Target.aarch64.featureSetHas(target.cpu.features, .fp_armv8),
else => true,
};
}