80d2c5d9bf
* add x86 encodings for shift-immediate instructions implements encodings for ishl_imm, sshr_imm, and ushr_imm. uses 8-bit immediates. added tests for the encodings to intel/binary64.cton. Canonical versions come from llvm-mc. * translate test to use shift-immediates * shift immediate encodings: use enc_i32_i64 and note why the regular shift encodings cant use it above * add additional encoding tests for shift immediates this covers 32 bit mode, and 64 bit operations in 64 bit mode.
95 lines
1.4 KiB
Plaintext
95 lines
1.4 KiB
Plaintext
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test compile
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set is_64bit
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isa intel baseline
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; clz/ctz on 64 bit operands
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function %i64_clz(i64) -> i64 {
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ebb0(v10: i64):
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v11 = clz v10
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; check: x86_bsr
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; check: selectif.i64
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return v11
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}
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function %i64_ctz(i64) -> i64 {
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ebb1(v20: i64):
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v21 = ctz v20
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; check: x86_bsf
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; check: selectif.i64
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return v21
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}
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; clz/ctz on 32 bit operands
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function %i32_clz(i32) -> i32 {
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ebb0(v10: i32):
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v11 = clz v10
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; check: x86_bsr
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; check: selectif.i32
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return v11
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}
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function %i32_ctz(i32) -> i32 {
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ebb1(v20: i32):
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v21 = ctz v20
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; check: x86_bsf
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; check: selectif.i32
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return v21
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}
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; popcount on 64 bit operands
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function %i64_popcount(i64) -> i64 {
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ebb0(v30: i64):
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v31 = popcnt v30;
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; check: ushr_imm
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; check: iconst.i64
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; check: band
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; check: isub
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; check: ushr_imm
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; check: band
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; check: isub
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; check: ushr_imm
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; check: band
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; check: isub
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; check: ushr_imm
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; check: iadd
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; check: iconst.i64
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; check: band
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; check: iconst.i64
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; check: imul
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; check: ushr_imm
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return v31;
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}
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; popcount on 32 bit operands
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function %i32_popcount(i32) -> i32 {
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ebb0(v40: i32):
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v41 = popcnt v40;
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; check: ushr_imm
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; check: iconst.i32
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; check: band
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; check: isub
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; check: ushr_imm
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; check: band
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; check: isub
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; check: ushr_imm
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; check: band
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; check: isub
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; check: ushr_imm
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; check: iadd
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; check: iconst.i32
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; check: band
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; check: iconst.i32
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; check: imul
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; check: ushr_imm
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return v41;
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}
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