Craig Topper | 255d5db | 2020-06-15 19:34:02 -0700 | [diff] [blame] | 1 | ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| 2 | ; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu | FileCheck %s |
| 3 | ; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnux32 | FileCheck %s |
| 4 | ; RUN: not llc < %s -mtriple=i386-unknown-linux-gnu 2>&1 | FileCheck %s --check-prefix=ERROR |
| 5 | |
| 6 | ; For 32-bit we still error since __int128 isn't supported in the frontend. |
| 7 | ; ERROR: error: couldn't allocate output register for constraint 'x' |
| 8 | |
| 9 | define { i64, i64 } @foo(i64 %0, i64 %1) { |
| 10 | ; CHECK-LABEL: foo: |
| 11 | ; CHECK: # %bb.0: |
| 12 | ; CHECK-NEXT: movq %rsi, %xmm0 |
| 13 | ; CHECK-NEXT: movq %rdi, %xmm1 |
| 14 | ; CHECK-NEXT: punpcklqdq {{.*#+}} xmm1 = xmm1[0],xmm0[0] |
| 15 | ; CHECK-NEXT: #APP |
| 16 | ; CHECK-NEXT: movdqa %xmm1, %xmm0 |
| 17 | ; CHECK-NEXT: #NO_APP |
| 18 | ; CHECK-NEXT: movq %xmm0, %rax |
Simon Pilgrim | 17eafe0 | 2020-07-26 16:03:53 +0100 | [diff] [blame] | 19 | ; CHECK-NEXT: punpckhqdq {{.*#+}} xmm0 = xmm0[1,1] |
Craig Topper | 255d5db | 2020-06-15 19:34:02 -0700 | [diff] [blame] | 20 | ; CHECK-NEXT: movq %xmm0, %rdx |
| 21 | ; CHECK-NEXT: retq |
| 22 | %3 = zext i64 %1 to i128 |
| 23 | %4 = shl nuw i128 %3, 64 |
| 24 | %5 = zext i64 %0 to i128 |
| 25 | %6 = or i128 %4, %5 |
| 26 | %7 = tail call i128 asm sideeffect "movdqa $1, $0", "=x,x,~{dirflag},~{fpsr},~{flags}"(i128 %6) |
| 27 | %8 = trunc i128 %7 to i64 |
| 28 | %9 = lshr i128 %7, 64 |
| 29 | %10 = trunc i128 %9 to i64 |
| 30 | %11 = insertvalue { i64, i64 } undef, i64 %8, 0 |
| 31 | %12 = insertvalue { i64, i64 } %11, i64 %10, 1 |
| 32 | ret { i64, i64 } %12 |
| 33 | } |