Mercurial > hg > CbC > CbC_llvm
view test/CodeGen/AArch64/arm64-extract.ll @ 100:7d135dc70f03 LLVM 3.9
LLVM 3.9
author | Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp> |
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date | Tue, 26 Jan 2016 22:53:40 +0900 |
parents | 54457678186b |
children | 1172e4bd9c6f |
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; RUN: llc -aarch64-extr-generation=true -verify-machineinstrs < %s \ ; RUN: -march=arm64 | FileCheck %s define i64 @ror_i64(i64 %in) { ; CHECK-LABEL: ror_i64: %left = shl i64 %in, 19 %right = lshr i64 %in, 45 %val5 = or i64 %left, %right ; CHECK: ror {{x[0-9]+}}, x0, #45 ret i64 %val5 } define i32 @ror_i32(i32 %in) { ; CHECK-LABEL: ror_i32: %left = shl i32 %in, 9 %right = lshr i32 %in, 23 %val5 = or i32 %left, %right ; CHECK: ror {{w[0-9]+}}, w0, #23 ret i32 %val5 } define i32 @extr_i32(i32 %lhs, i32 %rhs) { ; CHECK-LABEL: extr_i32: %left = shl i32 %lhs, 6 %right = lshr i32 %rhs, 26 %val = or i32 %left, %right ; Order of lhs and rhs matters here. Regalloc would have to be very odd to use ; something other than w0 and w1. ; CHECK: extr {{w[0-9]+}}, w0, w1, #26 ret i32 %val } define i64 @extr_i64(i64 %lhs, i64 %rhs) { ; CHECK-LABEL: extr_i64: %right = lshr i64 %rhs, 40 %left = shl i64 %lhs, 24 %val = or i64 %right, %left ; Order of lhs and rhs matters here. Regalloc would have to be very odd to use ; something other than w0 and w1. ; CHECK: extr {{x[0-9]+}}, x0, x1, #40 ret i64 %val } ; Regression test: a bad experimental pattern crept into git which optimised ; this pattern to a single EXTR. define i32 @extr_regress(i32 %a, i32 %b) { ; CHECK-LABEL: extr_regress: %sh1 = shl i32 %a, 14 %sh2 = lshr i32 %b, 14 %val = or i32 %sh2, %sh1 ; CHECK-NOT: extr {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, #{{[0-9]+}} ret i32 %val ; CHECK: ret }