Emma Anholt 8771aff787 nir/opt_phi_precision: Fix missing swizzles when narrowing phi srcs.
This NIR:

	vec4 32 ssa_169 = phi block_1: ssa_168, block_2: ssa_138
	vec1 16 ssa_209 = f2fmp ssa_169.x
	vec1 16 ssa_210 = f2fmp ssa_169.y
	vec1 16 ssa_211 = f2fmp ssa_169.z
	vec1 16 ssa_212 = f2fmp ssa_169.w
	vec4 16 ssa_213 = vec4 ssa_209, ssa_210, ssa_211, ssa_212
	intrinsic store_output (ssa_213, ssa_171) (base=0, wrmask=xyzw /*15*/, component=0, src_type=float16 /*144*/, io location=4 slots=1 mediump /*8388740*/, xfb() /*0*/, xfb2() /*0*/)

would turn into:

	vec4 32 ssa_169 = phi block_1: ssa_168, block_2: ssa_138
	vec4 16 ssa_216 = phi block_1: ssa_214, block_2: ssa_215
	vec1 16 ssa_209 = f2fmp ssa_169.x
	vec1 16 ssa_210 = f2fmp ssa_169.y
	vec1 16 ssa_211 = f2fmp ssa_169.z
	vec1 16 ssa_212 = f2fmp ssa_169.w
	vec4 16 ssa_213 = vec4 ssa_216.x, ssa_216.x, ssa_216.x, ssa_216.x
	intrinsic store_output (ssa_213, ssa_171) (base=0, wrmask=xyzw /*15*/, component=0, src_type=float16 /*144*/, io location=4 slots=1 mediump /*8388740*/, xfb() /*0*/, xfb2() /*0*/)

ignoring the swizzles from the f2fmp srcs.  Fixes failures in
dEQP-GLES2.functional.shaders.random.all_features.fragment.20 on
turnip+ANGLE.

Fixes: c7b935962b ("nir: Add pass to lower phi precision")
Reviewed-by: Connor Abbott <cwabbott0@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19179>
(cherry picked from commit 22f7f167cd)
2022-10-25 09:25:41 -07:00
2022-10-19 10:06:27 -07:00
2022-01-19 15:17:17 +00:00
2022-07-15 21:31:51 +00:00
2022-10-19 09:50:22 -07:00

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