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| 1 | +; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5 |
1 | 2 | ; RUN: llc < %s -O3 -mtriple=x86_64-- |FileCheck %s
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2 |
| -define i64 @foo(i64 %data1, i64 %data2, i64 %data3) |
3 |
| -{ |
| 3 | + |
4 | 4 | ; If constant 4294967295 is hoisted to a variable, then we won't be able to
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5 | 5 | ; use a shift right by 32 to optimize the compare.
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| 6 | +define i64 @foo(i64 %data1, i64 %data2, i64 %data3) { |
| 7 | +; CHECK-LABEL: foo: |
| 8 | +; CHECK: # %bb.0: # %entry |
| 9 | +; CHECK-NEXT: movq %rdx, %rax |
| 10 | +; CHECK-NEXT: shrq $32, %rdi |
| 11 | +; CHECK-NEXT: je .LBB0_2 |
| 12 | +; CHECK-NEXT: # %bb.1: |
| 13 | +; CHECK-NEXT: incq %rax |
| 14 | +; CHECK-NEXT: retq |
| 15 | +; CHECK-NEXT: .LBB0_2: # %L_val2 |
| 16 | +; CHECK-NEXT: shrq $32, %rsi |
| 17 | +; CHECK-NEXT: je .LBB0_4 |
| 18 | +; CHECK-NEXT: # %bb.3: |
| 19 | +; CHECK-NEXT: addq $2, %rax |
| 20 | +; CHECK-NEXT: retq |
| 21 | +; CHECK-NEXT: .LBB0_4: # %L_val3 |
| 22 | +; CHECK-NEXT: addq $3, %rax |
| 23 | +; CHECK-NEXT: retq |
6 | 24 | entry:
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7 | 25 | %val1 = add i64 %data3, 1
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8 | 26 | %x = icmp ugt i64 %data1, 4294967295
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9 | 27 | br i1 %x, label %End, label %L_val2
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10 | 28 |
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11 |
| -; CHECK: shrq $32, {{.*}} |
12 |
| -; CHECK: shrq $32, {{.*}} |
13 | 29 | L_val2:
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14 | 30 | %val2 = add i64 %data3, 2
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15 | 31 | %y = icmp ugt i64 %data2, 4294967295
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