derek.holloway
7502bf64a4
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78 lines
2.5 KiB
LLVM
78 lines
2.5 KiB
LLVM
; RUN: opt -S -passes=lower-guard-intrinsic < %s | FileCheck %s
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; RUN: opt -S -passes='lower-guard-intrinsic' < %s | FileCheck %s
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declare void @llvm.experimental.guard(i1, ...)
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define i8 @f_basic(ptr %c_ptr) {
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; CHECK-LABEL: @f_basic(
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%c = load volatile i1, ptr %c_ptr
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call void(i1, ...) @llvm.experimental.guard(i1 %c, i32 1) [ "deopt"(i32 1) ]
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ret i8 5
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; CHECK: br i1 %c, label %guarded, label %deopt, !prof !0
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; CHECK: deopt:
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; CHECK-NEXT: %deoptcall = call i8 (...) @llvm.experimental.deoptimize.i8(i32 1) [ "deopt"(i32 1) ]
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; CHECK-NEXT: ret i8 %deoptcall
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; CHECK: guarded:
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; CHECK-NEXT: ret i8 5
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}
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define void @f_void_return_ty(ptr %c_ptr) {
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; CHECK-LABEL: @f_void_return_ty(
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%c = load volatile i1, ptr %c_ptr
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call void(i1, ...) @llvm.experimental.guard(i1 %c, i32 1) [ "deopt"() ]
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ret void
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; CHECK: br i1 %c, label %guarded, label %deopt, !prof !0
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; CHECK: deopt:
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; CHECK-NEXT: call void (...) @llvm.experimental.deoptimize.isVoid(i32 1) [ "deopt"() ]
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; CHECK-NEXT: ret void
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; CHECK: guarded:
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; CHECK-NEXT: ret void
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}
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define void @f_multiple_args(ptr %c_ptr) {
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; CHECK-LABEL: @f_multiple_args(
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%c = load volatile i1, ptr %c_ptr
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call void(i1, ...) @llvm.experimental.guard(i1 %c, i32 1, i32 2, double 500.0) [ "deopt"(i32 2, i32 3) ]
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ret void
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; CHECK: br i1 %c, label %guarded, label %deopt, !prof !0
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; CHECK: deopt:
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; CHECK-NEXT: call void (...) @llvm.experimental.deoptimize.isVoid(i32 1, i32 2, double 5.000000e+02) [ "deopt"(i32 2, i32 3) ]
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; CHECK-NEXT: ret void
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; CHECK: guarded:
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; CHECK-NEXT: ret void
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}
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define i32 @f_zero_args(ptr %c_ptr) {
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; CHECK-LABEL: @f_zero_args(
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%c = load volatile i1, ptr %c_ptr
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call void(i1, ...) @llvm.experimental.guard(i1 %c) [ "deopt"(i32 2, i32 3) ]
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ret i32 500
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; CHECK: br i1 %c, label %guarded, label %deopt, !prof !0
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; CHECK: deopt:
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; CHECK-NEXT: %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"(i32 2, i32 3) ]
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; CHECK-NEXT: ret i32 %deoptcall
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; CHECK: guarded:
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; CHECK-NEXT: ret i32 500
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}
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define i8 @f_with_make_implicit_md(ptr %ptr) {
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; CHECK-LABEL: @f_with_make_implicit_md(
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; CHECK: br i1 %notNull, label %guarded, label %deopt, !prof !0, !make.implicit !1
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; CHECK: deopt:
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; CHECK-NEXT: %deoptcall = call i8 (...) @llvm.experimental.deoptimize.i8(i32 1) [ "deopt"(i32 1) ]
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; CHECK-NEXT: ret i8 %deoptcall
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%notNull = icmp ne ptr %ptr, null
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call void(i1, ...) @llvm.experimental.guard(i1 %notNull, i32 1) [ "deopt"(i32 1) ], !make.implicit !{}
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ret i8 5
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}
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!0 = !{!"branch_weights", i32 1048576, i32 1}
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