| Craig Topper | 31259c5 | 2019-02-05 04:48:23 +0000 | [diff] [blame^] | 1 | ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| 2 | ; RUN: llc < %s -mtriple=x86_64-unknown-linux | FileCheck %s |
| 3 | |
| 4 | define x86_fp80 @rem_pio2l_min(x86_fp80 %z) { |
| 5 | ; CHECK-LABEL: rem_pio2l_min: |
| 6 | ; CHECK: # %bb.0: # %entry |
| 7 | ; CHECK-NEXT: fldt {{[0-9]+}}(%rsp) |
| 8 | ; CHECK-NEXT: fnstcw -{{[0-9]+}}(%rsp) |
| 9 | ; CHECK-NEXT: movzwl -{{[0-9]+}}(%rsp), %eax |
| 10 | ; CHECK-NEXT: movw $3199, -{{[0-9]+}}(%rsp) # imm = 0xC7F |
| 11 | ; CHECK-NEXT: fldcw -{{[0-9]+}}(%rsp) |
| 12 | ; CHECK-NEXT: movw %ax, -{{[0-9]+}}(%rsp) |
| 13 | ; CHECK-NEXT: fistl -{{[0-9]+}}(%rsp) |
| 14 | ; CHECK-NEXT: fldcw -{{[0-9]+}}(%rsp) |
| 15 | ; CHECK-NEXT: movl -{{[0-9]+}}(%rsp), %eax |
| 16 | ; CHECK-NEXT: movl %eax, -{{[0-9]+}}(%rsp) |
| 17 | ; CHECK-NEXT: fisubl -{{[0-9]+}}(%rsp) |
| 18 | ; CHECK-NEXT: flds {{.*}}(%rip) |
| 19 | ; CHECK-NEXT: fmul %st, %st(1) |
| 20 | ; CHECK-NEXT: fnstcw -{{[0-9]+}}(%rsp) |
| 21 | ; CHECK-NEXT: movzwl -{{[0-9]+}}(%rsp), %eax |
| 22 | ; CHECK-NEXT: movw $3199, -{{[0-9]+}}(%rsp) # imm = 0xC7F |
| 23 | ; CHECK-NEXT: fldcw -{{[0-9]+}}(%rsp) |
| 24 | ; CHECK-NEXT: movw %ax, -{{[0-9]+}}(%rsp) |
| 25 | ; CHECK-NEXT: fxch %st(1) |
| 26 | ; CHECK-NEXT: fistl -{{[0-9]+}}(%rsp) |
| 27 | ; CHECK-NEXT: fldcw -{{[0-9]+}}(%rsp) |
| 28 | ; CHECK-NEXT: movl -{{[0-9]+}}(%rsp), %eax |
| 29 | ; CHECK-NEXT: movl %eax, -{{[0-9]+}}(%rsp) |
| 30 | ; CHECK-NEXT: fisubl -{{[0-9]+}}(%rsp) |
| 31 | ; CHECK-NEXT: fmulp %st, %st(1) |
| 32 | ; CHECK-NEXT: retq |
| 33 | entry: |
| 34 | %conv = fptosi x86_fp80 %z to i32 |
| 35 | %conv1 = sitofp i32 %conv to x86_fp80 |
| 36 | %sub = fsub x86_fp80 %z, %conv1 |
| 37 | %mul = fmul x86_fp80 %sub, 0xK40178000000000000000 |
| 38 | %conv2 = fptosi x86_fp80 %mul to i32 |
| 39 | %conv3 = sitofp i32 %conv2 to x86_fp80 |
| 40 | %sub4 = fsub x86_fp80 %mul, %conv3 |
| 41 | %mul5 = fmul x86_fp80 %sub4, 0xK40178000000000000000 |
| 42 | ret x86_fp80 %mul5 |
| 43 | } |