[LLVMbugs] [Bug 24153] New: Regression: No target for triple spir-unknown-unknown

[bugzilla-daemon at llvm.org]

https://llvm.org/bugs/show_bug.cgi?id=24153

            Bug ID: 24153
           Summary: Regression: No target for triple spir-unknown-unknown
           Product: clang
           Version: 3.7
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: -New Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: moritz.pflanzer14 at imperial.ac.uk
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Created attachment 14599
  --> https://llvm.org/bugs/attachment.cgi?id=14599&action=edit
File from which the PCH should be generated

The target triples spir-unknown-unknown and spir64-unknown-unknown are
currently not recognised by clang.
The following command worked in 3.6.1 and up to some point in 3.7:

$ clang -cc1 -x cl -cl-std=CL1.2 -O0 -g -fno-builtin -emit-pch -triple
spir-unknown-unknown -relocatable-pch -isysroot . clc.h -o ./clc32.pch

$ clang -cc1 -version
LLVM (http://llvm.org/):
  LLVM version 3.6.1
  DEBUG build with assertions.
  Built Jul 16 2015 (11:46:26).
  Default target: x86_64-unknown-linux-gnu
  Host CPU: core-avx2

It does currently not work in 3.7 ([1]) and trunk. When it is executed the
following error is emitted:

fatal error: error in backend: No available targets are compatible with this
triple, see -version for the available targets.

$ clang -cc1 -version
LLVM (http://llvm.org/):
  LLVM version 3.7.0
  DEBUG build with assertions.
  Built Jul 16 2015 (11:56:40).
  Default target: x86_64-unknown-linux-gnu
  Host CPU: haswell


[1] For LLVM commit 3690da1 and clang commit 979403f it still works. Some
change after these commits must have broken the support for the spir triple.

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