Comment 4 for bug 1131614

I don’t know, but ceil is far from the only intrinsic that was inserted into the middle of the sorted list:

@@ -2636,2 +2655,3 @@
   "llvm.bswap",
+ "llvm.ceil",
   "llvm.convert.from.fp16",
@@ -3678,2 +3698,3 @@
   "llvm.mips.wrdsp",
+ "llvm.nearbyint",
   "llvm.nvvm.abs.i",
@@ -4155,4 +4176,20 @@
   "llvm.ptx.read.warpid",
+ "llvm.r600.read.global.size.x",
+ "llvm.r600.read.global.size.y",
+ "llvm.r600.read.global.size.z",
+ "llvm.r600.read.local.size.x",
+ "llvm.r600.read.local.size.y",
+ "llvm.r600.read.local.size.z",
+ "llvm.r600.read.ngroups.x",
+ "llvm.r600.read.ngroups.y",
+ "llvm.r600.read.ngroups.z",
+ "llvm.r600.read.tgid.x",
+ "llvm.r600.read.tgid.y",
+ "llvm.r600.read.tgid.z",
+ "llvm.r600.read.tidig.x",
+ "llvm.r600.read.tidig.y",
+ "llvm.r600.read.tidig.z",
   "llvm.readcyclecounter",
   "llvm.returnaddress",
+ "llvm.rint",
   "llvm.sadd.with.overflow",
@@ -4251,2 +4288,3 @@
   "llvm.trap",
+ "llvm.trunc",
   "llvm.uadd.with.overflow",