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SPV: Reduce spurious type generation by removing intermediate types in the middle of access chains.

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This generally simplifies access chain generation, with far fewer  type conversions.
It is particularly important to future SPIR-V changes where there is less aggregate
type uniqueness due to carrying different layout information with the type.
This commit is contained in:
John Kessenich 2015-09-13 14:46:30 -06:00
parent c9a808319a
commit fa668dad99
8 changed files with 144 additions and 137 deletions
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10
Test/baseResults/spv.Operations.frag.out
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@ -51,7 +51,7 @@ Linked fragment stage:
292: 19(int) Constant 2
299: 19(int) Constant 1
301: TypePointer Function 7(float)
332: TypeVector 7(float) 3
331: TypeVector 7(float) 3
347: 7(float) Constant 1073741824
354: 7(float) Constant 1065353216
359: 19(int) Constant 66
@ -434,11 +434,11 @@ Linked fragment stage:
329: 7(float) Load 302(f)
330: 7(float) FAdd 329 328
Store 302(f) 330
331: 8(fvec4) Load 10(v)
333: 332(fvec3) VectorShuffle 331 331 0 1 2
332: 8(fvec4) Load 10(v)
333: 331(fvec3) VectorShuffle 332 332 0 1 2
334: 8(fvec4) Load 10(v)
335: 332(fvec3) VectorShuffle 334 334 0 1 2
336: 332(fvec3) ExtInst 1(GLSL.std.450) 67(Cross) 333 335
335: 331(fvec3) VectorShuffle 334 334 0 1 2
336: 331(fvec3) ExtInst 1(GLSL.std.450) 67(Cross) 333 335
337: 7(float) CompositeExtract 336 0
338: 7(float) Load 302(f)
339: 7(float) FAdd 338 337