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Merge pull request #641 from jbrodman/stdlibshift

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Add a "shift" operator to the stdlib.
This commit is contained in:
Dmitry Babokin
2013-10-28 14:18:31 -07:00
parent ef5d2dc043 e682b19eda
commit 6585a925be
12 changed files with 425 additions and 59 deletions
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7
builtins/target-generic-common.ll
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@@ -80,6 +80,13 @@ declare <WIDTH x i32> @__rotate_i32(<WIDTH x i32>, i32) nounwind readnone
declare <WIDTH x double> @__rotate_double(<WIDTH x double>, i32) nounwind readnone
declare <WIDTH x i64> @__rotate_i64(<WIDTH x i64>, i32) nounwind readnone
declare <WIDTH x i8> @__shift_i8(<WIDTH x i8>, i32) nounwind readnone
declare <WIDTH x i16> @__shift_i16(<WIDTH x i16>, i32) nounwind readnone
declare <WIDTH x float> @__shift_float(<WIDTH x float>, i32) nounwind readnone
declare <WIDTH x i32> @__shift_i32(<WIDTH x i32>, i32) nounwind readnone
declare <WIDTH x double> @__shift_double(<WIDTH x double>, i32) nounwind readnone
declare <WIDTH x i64> @__shift_i64(<WIDTH x i64>, i32) nounwind readnone
declare <WIDTH x i8> @__shuffle_i8(<WIDTH x i8>, <WIDTH x i32>) nounwind readnone
declare <WIDTH x i8> @__shuffle2_i8(<WIDTH x i8>, <WIDTH x i8>,
<WIDTH x i32>) nounwind readnone

18
builtins/util.m4
View File

@@ -797,6 +797,24 @@ not_const:
ret <WIDTH x $1> %result
}
define <WIDTH x $1> @__shift_$1(<WIDTH x $1>, i32) nounwind readnone alwaysinline {
%ptr = alloca <WIDTH x $1>, i32 3
%ptr0 = getelementptr <WIDTH x $1> * %ptr, i32 0
store <WIDTH x $1> zeroinitializer, <WIDTH x $1> * %ptr0
%ptr1 = getelementptr <WIDTH x $1> * %ptr, i32 1
store <WIDTH x $1> %0, <WIDTH x $1> * %ptr1
%ptr2 = getelementptr <WIDTH x $1> * %ptr, i32 2
store <WIDTH x $1> zeroinitializer, <WIDTH x $1> * %ptr2
%offset = add i32 %1, WIDTH
%ptr_as_elt_array = bitcast <WIDTH x $1> * %ptr to [eval(3*WIDTH) x $1] *
%load_ptr = getelementptr [eval(3*WIDTH) x $1] * %ptr_as_elt_array, i32 0, i32 %offset
%load_ptr_vec = bitcast $1 * %load_ptr to <WIDTH x $1> *
%result = load <WIDTH x $1> * %load_ptr_vec, align $2
ret <WIDTH x $1> %result
}
define <WIDTH x $1> @__shuffle_$1(<WIDTH x $1>, <WIDTH x i32>) nounwind readnone alwaysinline {
forloop(i, 0, eval(WIDTH-1), `
%index_`'i = extractelement <WIDTH x i32> %1, i32 i')