Build fails with the following errors:

	[77/1193] Compiling C object 'src/compiler/nir/src@compiler@nir@@nir@sta/meson-generated_.._nir_intrinsics.c.o'.
	src/compiler/nir/nir_intrinsics.c:2039:1: warning: excess elements in array initializer
	 {
	 ^
	src/compiler/nir/nir_intrinsics.c:2039:1: note: (near initialization for ‘nir_intrinsic_infos’)
	[123/1193] Compiling C object 'src/compiler/nir/src@compiler@nir@@nir@sta/nir_lower_system_values.c.o'.
	FAILED: src/compiler/nir/src@compiler@nir@@nir@sta/nir_lower_system_values.c.o 
	cc -Isrc/compiler/nir/src@compiler@nir@@nir@sta -Isrc/compiler/nir -I../mesa/src/compiler/nir -Isrc/../include -I../mesa/src/../include -Isrc -I../mesa/src -Isrc/mapi -I../mesa/src/mapi -Isrc/mesa -I../mesa/src/mesa -I../mesa/src/gallium/include -Isrc/gallium/auxiliary -I../mesa/src/gallium/auxiliary -Isrc/compiler -I../mesa/src/compiler -Isrc/compiler/nir/../spirv -I../mesa/src/compiler/nir/../spirv -Isrc/compiler/spirv -fdiagnostics-color=always -DNDEBUG -pipe -D_FILE_OFFSET_BITS=64 -std=c99 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS '-DVERSION="18.2.0-devel"' -DPACKAGE_VERSION=VERSION '-DPACKAGE_BUGREPORT="https://bugs.freedesktop.org/enter_bug.cgi?product=Mesa"' -DGLX_USE_TLS -DHAVE_ST_VDPAU -DENABLE_ST_OMX_BELLAGIO=1 -DENABLE_ST_OMX_TIZONIA=0 -DHAVE_X11_PLATFORM -DGLX_INDIRECT_RENDERING -DGLX_DIRECT_RENDERING -DGLX_USE_DRM -DHAVE_DRM_PLATFORM -DHAVE_SURFACELESS_PLATFORM -DENABLE_SHADER_CACHE -DHAVE___BUILTIN_BSWAP32 -DHAVE___BUILTIN_BSWAP64 -DHAVE___BUILTIN_CLZ -DHAVE___BUILTIN_CLZLL -DHAVE___BUILTIN_CTZ -DHAVE___BUILTIN_EXPECT -DHAVE___BUILTIN_FFS -DHAVE___BUILTIN_FFSLL -DHAVE___BUILTIN_POPCOUNT -DHAVE___BUILTIN_POPCOUNTLL -DHAVE___BUILTIN_UNREACHABLE -DHAVE_FUNC_ATTRIBUTE_CONST -DHAVE_FUNC_ATTRIBUTE_FLATTEN -DHAVE_FUNC_ATTRIBUTE_MALLOC -DHAVE_FUNC_ATTRIBUTE_PURE -DHAVE_FUNC_ATTRIBUTE_UNUSED -DHAVE_FUNC_ATTRIBUTE_WARN_UNUSED_RESULT -DHAVE_FUNC_ATTRIBUTE_WEAK -DHAVE_FUNC_ATTRIBUTE_FORMAT -DHAVE_FUNC_ATTRIBUTE_PACKED -DHAVE_FUNC_ATTRIBUTE_RETURNS_NONNULL -DHAVE_FUNC_ATTRIBUTE_VISIBILITY -DHAVE_FUNC_ATTRIBUTE_ALIAS -DHAVE_FUNC_ATTRIBUTE_NORETURN -D_GNU_SOURCE -DUSE_SSE41 -DUSE_GCC_ATOMIC_BUILTINS -DUSE_X86_64_ASM -DMAJOR_IN_SYSMACROS -DHAVE_SYS_SYSCTL_H -DHAVE_LINUX_FUTEX_H -DHAVE_ENDIAN_H -DHAVE_STRTOF -DHAVE_MKOSTEMP -DHAVE_POSIX_MEMALIGN -DHAVE_TIMESPEC_GET -DHAVE_MEMFD_CREATE -DHAVE_STRTOD_L -DHAVE_DLADDR -DHAVE_DL_ITERATE_PHDR -DHAVE_ZLIB -DHAVE_PTHREAD -DHAVE_LIBDRM -DHAVE_LLVM=0x0800 -DMESA_LLVM_VERSION_PATCH=0 -DUSE_LIBGLVND=1 -DHAVE_WAYLAND_PLATFORM -DWL_HIDE_DEPRECATED -DHAVE_DRI3 -DHAVE_DRI3_MODIFIERS -DHAVE_GALLIUM_EXTRA_HUD=1 -DHAVE_LIBSENSORS=1 -Wall -Werror=implicit-function-declaration -Werror=missing-prototypes -fno-math-errno -fno-trapping-math -Wno-missing-field-initializers -march=native -O3 -fno-stack-protector -fweb -fno-semantic-interposition -fmerge-all-constants -floop-nest-optimize -fPIC -fvisibility=hidden -Werror=pointer-arith -Werror=vla -Wno-override-init  -MD -MQ 'src/compiler/nir/src@compiler@nir@@nir@sta/nir_lower_system_values.c.o' -MF 'src/compiler/nir/src@compiler@nir@@nir@sta/nir_lower_system_values.c.o.d' -o 'src/compiler/nir/src@compiler@nir@@nir@sta/nir_lower_system_values.c.o' -c ../mesa/src/compiler/nir/nir_lower_system_values.c
	../mesa/src/compiler/nir/nir_lower_system_values.c: In function ‘convert_block’:
	../mesa/src/compiler/nir/nir_lower_system_values.c:153:28: error: implicit declaration of function ‘nir_load_sample_id_no_per_sample’; did you mean ‘nir_load_sample_pos’? [-Werror=implicit-function-declaration]
								nir_load_sample_id_no_per_sample(b));
								^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
								nir_load_sample_pos
	../mesa/src/compiler/nir/nir_lower_system_values.c:153:28: warning: passing argument 3 of ‘nir_ishl’ makes pointer from integer without a cast [-Wint-conversion]
								nir_load_sample_id_no_per_sample(b));
								^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	In file included from ../mesa/src/compiler/nir/nir_builder.h:379,
					 from ../mesa/src/compiler/nir/nir_lower_system_values.c:29:
	../mesa/src/compiler/nir/nir_builder_opcodes.h:789:62: note: expected ‘nir_ssa_def *’ {aka ‘struct nir_ssa_def *’} but argument is of type ‘int’
	 nir_ishl(nir_builder *build, nir_ssa_def *src0, nir_ssa_def *src1)
													 ~~~~~~~~~~~~~^~~~
	cc1: some warnings being treated as errors
	[128/1193] Compiling C object 'src/compiler/nir/src@compiler@nir@@nir@sta/nir_lower_tex.c.o'.
	ninja: build stopped: subcommand failed.
	==> ERROR: A failure occurred in build().
		Aborting...

# Bisected commit:


8dfc9e22c12ff840510d876b09d7f7163256bb17 is the first bad commit
commit 8dfc9e22c12ff840510d876b09d7f7163256bb17
Author: Rob Clark <robdclark@gmail.com>
Date:   Fri Jun 1 14:07:15 2018 -0400

    nir: add lowering for gl_HelperInvocation
    
    v2: reword comment about lower_helper_invocations to be more clear
        that it might not work on all hardware
    v3: add special variant of load_sample_id which does not imply per-
        sample shading
    
    Signed-off-by: Rob Clark <robdclark@gmail.com>

:040000 040000 ddb9c228e9f22d020ec2a1eb20b46803187a6ea0 55e9ca1c8d04a1e157697a94576dfbec8c140db2 M      src

# Steps to reproduce

Build with the following commands:

    meson setup mesa _build \
       -D b_ndebug=true \
       -D buildtype=plain \
       --wrap-mode=nofallback \
       -D prefix=/usr \
       -D sysconfdir=/etc \
       -D platforms=x11,wayland,drm,surfaceless \
       -D dri-drivers="" \
       -D gallium-drivers=r600,swrast \
       -D vulkan-drivers="" \
       -D dri3=true \
       -D egl=true \
       -D gallium-extra-hud=true \
       -D gallium-nine=true \
       -D gallium-omx=bellagio \
       -D gallium-va=true \
       -D gallium-vdpau=true \
       -D gallium-xa=false \
       -D gallium-xvmc=false \
       -D gbm=true \
       -D gles1=true \
       -D gles2=true \
       -D glvnd=true \
       -D glx=dri \
       -D libunwind=false \
       -D llvm=true \
       -D lmsensors=true \
       -D osmesa=gallium \
       -D shared-glapi=true \
       -D gallium-opencl=icd \
       -D valgrind=false \
       -D tools=[]
    meson configure _build
    ninja -C _build