From f6cd68386d76e4a9a489187c47f218b59e1734f3 Mon Sep 17 00:00:00 2001
From: vegecode <39607947+vegecode@users.noreply.github.com>
Date: Wed, 2 Jan 2019 15:47:47 -0600
Subject: @bitreverse intrinsic, part of #767 (#1865)

* bitreverse - give bswap behavior

* bitreverse, comptime_ints, negative values still not working?

* bitreverse working for negative comptime ints

* Finished bitreverse test cases

* Undo exporting a bigint function. @bitreverse test name includes ampersand

* added docs entry for @bitreverse
---
 src/analyze.cpp | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src/analyze.cpp')

diff --git a/src/analyze.cpp b/src/analyze.cpp
index 0f2b8e48cc..b9794114a0 100644
--- a/src/analyze.cpp
+++ b/src/analyze.cpp
@@ -6121,6 +6121,8 @@ uint32_t zig_llvm_fn_key_hash(ZigLLVMFnKey x) {
             return (uint32_t)(x.data.floating.bit_count) * (uint32_t)2225366385;
         case ZigLLVMFnIdBswap:
             return (uint32_t)(x.data.bswap.bit_count) * (uint32_t)3661994335;
+        case ZigLLVMFnIdBitReverse:
+            return (uint32_t)(x.data.bit_reverse.bit_count) * (uint32_t)2621398431;
         case ZigLLVMFnIdOverflowArithmetic:
             return ((uint32_t)(x.data.overflow_arithmetic.bit_count) * 87135777) +
                 ((uint32_t)(x.data.overflow_arithmetic.add_sub_mul) * 31640542) +
@@ -6141,6 +6143,8 @@ bool zig_llvm_fn_key_eql(ZigLLVMFnKey a, ZigLLVMFnKey b) {
             return a.data.pop_count.bit_count == b.data.pop_count.bit_count;
         case ZigLLVMFnIdBswap:
             return a.data.bswap.bit_count == b.data.bswap.bit_count;
+        case ZigLLVMFnIdBitReverse:
+            return a.data.bit_reverse.bit_count == b.data.bit_reverse.bit_count;
         case ZigLLVMFnIdFloor:
         case ZigLLVMFnIdCeil:
         case ZigLLVMFnIdSqrt:
-- 
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