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Implement initial emission of constants

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This approach suffers from memory-size bloat during compile time due to the desire to de-duplicate the constants emitted and reduce runtime memory-size. As a first step, though, this provides an end-to-end mechanism for constants to be emitted in the MachBuffer islands.
This commit is contained in:
Andrew Brown
2020-10-27 11:54:15 -07:00
parent efa87d4c17
commit 83f182b390
7 changed files with 251 additions and 64 deletions
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18
cranelift/filetests/filetests/isa/x64/simd-lane-access-compile.clif
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@@ -12,11 +12,11 @@ block0:
v2 = shuffle v0, v1, 0x11000000000000000000000000000000 ; pick the second lane of v1, the rest use the first lane of v0
return v2
}
; check: load_const $$[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], %xmm1
; nextln: load_const $$[1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], %xmm0
; nextln: load_const $$[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 128], %xmm2
; check: load_const VCodeConstant(3), %xmm1
; nextln: load_const VCodeConstant(2), %xmm0
; nextln: load_const VCodeConstant(0), %xmm2
; nextln: pshufb %xmm2, %xmm1
; nextln: load_const $$[128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 1], %xmm2
; nextln: load_const VCodeConstant(1), %xmm2
; nextln: pshufb %xmm2, %xmm0
; nextln: orps %xmm1, %xmm0
@@ -27,8 +27,8 @@ block0:
v2 = shuffle v1, v1, 0x13000000000000000000000000000000 ; pick the fourth lane of v1 and the rest from the first lane of v1
return v2
}
; check: load_const $$[1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], %xmm0
; nextln: load_const $$[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3], %xmm1
; check: load_const VCodeConstant(1), %xmm0
; nextln: load_const VCodeConstant(0), %xmm1
; nextln: pshufb %xmm1, %xmm0
@@ -42,9 +42,9 @@ block0:
v2 = swizzle.i8x16 v0, v1
return v2
}
; check: load_const $$[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15], %xmm1
; nextln: load_const $$[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15], %xmm0
; nextln: load_const $$[112, 112, 112, 112, 112, 112, 112, 112, 112, 112, 112, 112, 112, 112, 112, 112], %xmm2
; check: load_const VCodeConstant(1), %xmm1
; nextln: load_const VCodeConstant(1), %xmm0
; nextln: load_const VCodeConstant(0), %xmm2
; nextln: paddusb %xmm2, %xmm0
; nextln: pshufb %xmm0, %xmm1
; nextln: movdqa %xmm1, %xmm0