derek.holloway
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108 lines
2.2 KiB
LLVM
108 lines
2.2 KiB
LLVM
; RUN: mlir-translate -import-llvm -split-input-file %s | FileCheck %s
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; CHECK-LABEL: @cond_br
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define i64 @cond_br(i1 %arg1, i64 %arg2) {
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entry:
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; CHECK: llvm.cond_br
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; CHECK-SAME: weights([0, 3])
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br i1 %arg1, label %bb1, label %bb2, !prof !0
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bb1:
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ret i64 %arg2
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bb2:
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ret i64 %arg2
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}
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!0 = !{!"branch_weights", i32 0, i32 3}
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; // -----
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; CHECK-LABEL: @cond_br_expected
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define i64 @cond_br_expected(i1 %arg1, i64 %arg2) {
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entry:
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; CHECK: llvm.cond_br
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; CHECK-SAME: weights([1, 2000])
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br i1 %arg1, label %bb1, label %bb2, !prof !0
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bb1:
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ret i64 %arg2
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bb2:
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ret i64 %arg2
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}
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!0 = !{!"branch_weights", !"expected", i32 1, i32 2000}
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; // -----
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; CHECK-LABEL: @simple_switch(
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define i32 @simple_switch(i32 %arg1) {
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; CHECK: llvm.switch
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; CHECK: {branch_weights = array<i32: 42, 3, 5>}
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switch i32 %arg1, label %bbd [
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i32 0, label %bb1
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i32 9, label %bb2
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], !prof !0
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bb1:
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ret i32 %arg1
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bb2:
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ret i32 %arg1
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bbd:
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ret i32 %arg1
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}
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!0 = !{!"branch_weights", i32 42, i32 3, i32 5}
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; // -----
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; CHECK-LABEL: @simple_switch_expected(
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define i32 @simple_switch_expected(i32 %arg1) {
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; CHECK: llvm.switch
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; CHECK: {branch_weights = array<i32: 1, 1, 2000>}
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switch i32 %arg1, label %bbd [
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i32 0, label %bb1
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i32 9, label %bb2
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], !prof !0
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bb1:
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ret i32 %arg1
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bb2:
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ret i32 %arg1
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bbd:
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ret i32 %arg1
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}
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!0 = !{!"branch_weights", !"expected", i32 1, i32 1, i32 2000}
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; // -----
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; Verify that a single weight attached to a call is not translated.
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; The MLIR WeightedBranchOpInterface does not support this case.
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; CHECK: llvm.func @fn()
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declare i32 @fn()
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; CHECK-LABEL: @call_branch_weights
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define i32 @call_branch_weights() {
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; CHECK: llvm.call @fn() : () -> i32
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%1 = call i32 @fn(), !prof !0
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ret i32 %1
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}
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!0 = !{!"branch_weights", i32 42}
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; // -----
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declare void @foo()
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declare i32 @__gxx_personality_v0(...)
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; CHECK-LABEL: @invoke_branch_weights
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define i32 @invoke_branch_weights() personality ptr @__gxx_personality_v0 {
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; CHECK: llvm.invoke @foo() to ^bb2 unwind ^bb1 {branch_weights = array<i32: 42, 99>} : () -> ()
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invoke void @foo() to label %bb2 unwind label %bb1, !prof !0
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bb1:
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%1 = landingpad { ptr, i32 } cleanup
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br label %bb2
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bb2:
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ret i32 1
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}
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!0 = !{!"branch_weights", i32 42, i32 99}
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