PKGBUILDs/community/ldc/fix-llvm_prefetch-for-LLVM-10.patch

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2020-04-19 16:44:48 +00:00
diff --git a/src/core/simd.d b/src/core/simd.d
index c27dc4c1..7641c8a9 100644
--- a/src/core/simd.d
+++ b/src/core/simd.d
@@ -84,6 +84,20 @@ version (LDC)
enum dataCache = 1;
llvm_prefetch(address, writeFetch, locality, dataCache);
}
+
+ unittest
+ {
+ float[4] data = [ 0.5, 1, 1.5, 2 ];
+ auto ptr = &data[0];
+
+ prefetch!(false, 0)(ptr);
+ auto v = loadUnaligned!float4(ptr);
+ v *= 2;
+ storeUnaligned!float4(v, ptr);
+
+ float[4] expected = [ 1, 2, 3, 4 ];
+ assert(data == expected);
+ }
}
else version (D_SIMD)
{
diff --git a/src/ldc/intrinsics.di b/src/ldc/intrinsics.di
index 914cd5e1..091b2aac 100644
--- a/src/ldc/intrinsics.di
+++ b/src/ldc/intrinsics.di
@@ -129,6 +129,14 @@ pragma(LDC_intrinsic, "llvm.stacksave")
pragma(LDC_intrinsic, "llvm.stackrestore")
void llvm_stackrestore(void* ptr);
+version(INTRINSICS_FROM_1000)
+{
+ private enum llvm_prefetch_fullname = "llvm.prefetch.p0i8";
+}
+else
+{
+ private enum llvm_prefetch_fullname = "llvm.prefetch";
+}
/// The 'llvm.prefetch' intrinsic is a hint to the code generator to insert a
/// prefetch instruction if supported; otherwise, it is a noop. Prefetches have
/// no effect on the behavior of the program but can change its performance
@@ -139,8 +147,8 @@ pragma(LDC_intrinsic, "llvm.stackrestore")
/// keep in cache. The cache type specifies whether the prefetch is performed on
/// the data (1) or instruction (0) cache. The rw, locality and cache type
/// arguments must be constant integers.
-pragma(LDC_intrinsic, "llvm.prefetch")
- void llvm_prefetch(void* ptr, uint rw, uint locality, uint cachetype) pure @safe;
+pragma(LDC_intrinsic, llvm_prefetch_fullname)
+ void llvm_prefetch(const(void)* ptr, uint rw, uint locality, uint cachetype) pure @safe;
/// The 'llvm.pcmarker' intrinsic is a method to export a Program Counter (PC)
/// in a region of code to simulators and other tools. The method is target