157 lines
4.6 KiB
LLVM
157 lines
4.6 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -passes='require<profile-summary>,function(codegenprepare)' -S -mtriple=x86_64-linux < %s | FileCheck %s
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define i32 @test1(ptr %d) nounwind {
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; CHECK-LABEL: @test1(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[L:%.*]] = load i8, ptr [[D:%.*]], align 1
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; CHECK-NEXT: [[TMP0:%.*]] = icmp eq i8 [[L]], 0
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; CHECK-NEXT: [[CONV:%.*]] = zext i1 [[TMP0]] to i32
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; CHECK-NEXT: ret i32 [[CONV]]
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;
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entry:
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%l = load i8, ptr %d
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%cmp = icmp eq i8 %l, 0
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br i1 %cmp, label %exit, label %if.end
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if.end:
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%gep = getelementptr i8, ptr %d, i32 42
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%call = call i64 @foo(ptr %gep) nounwind readonly willreturn
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%cmp2 = icmp ne i64 %call, 0
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call void @llvm.assume(i1 %cmp2)
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br label %exit
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exit:
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%conv = zext i1 %cmp to i32
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ret i32 %conv
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}
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define i32 @test2(i32 %N) nounwind {
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; CHECK-LABEL: @test2(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br label [[HEADER:%.*]]
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; CHECK: header:
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; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[IV_INC:%.*]], [[HEADER]] ]
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; CHECK-NEXT: [[IV_INC]] = add i32 [[IV]], 1
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; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[IV]], [[N:%.*]]
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; CHECK-NEXT: br i1 [[CMP]], label [[EXIT:%.*]], label [[HEADER]]
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; CHECK: exit:
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; CHECK-NEXT: ret i32 [[IV]]
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;
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entry:
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br label %header
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header:
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%iv = phi i32 [0, %entry], [%iv.inc, %header]
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%iv2 = phi i32 [0, %entry], [%iv2.inc, %header]
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%iv.inc = add i32 %iv, 1
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%iv2.inc = add i32 %iv2, 1
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%cmp = icmp eq i32 %iv, %N
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%cmp2 = icmp sle i32 %iv2, %N
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call void @llvm.assume(i1 %cmp2)
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br i1 %cmp, label %exit, label %header
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exit:
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ret i32 %iv
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}
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define i32 @test3(i32 %N) nounwind {
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; CHECK-LABEL: @test3(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br label [[HEADER:%.*]]
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; CHECK: header:
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; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[IV_INC:%.*]], [[HEADER]] ]
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; CHECK-NEXT: [[IV_INC]] = add i32 [[IV]], 1
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; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[IV]], [[N:%.*]]
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; CHECK-NEXT: br i1 [[CMP]], label [[EXIT:%.*]], label [[HEADER]]
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; CHECK: exit:
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; CHECK-NEXT: ret i32 [[IV]]
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;
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entry:
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br label %header
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header:
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%iv = phi i32 [0, %entry], [%iv.inc, %header]
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%iv2 = phi i32 [0, %entry], [%iv2.inc, %header]
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%iv.inc = add i32 %iv, 1
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%iv2.inc = add i32 %iv2, 1
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%cmp = icmp eq i32 %iv, %N
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%cmp2 = icmp sle i32 %iv2.inc, %N
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call void @llvm.assume(i1 %cmp2)
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br i1 %cmp, label %exit, label %header
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exit:
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ret i32 %iv
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}
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; Two assumes case.
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define i32 @test4(i32 %N) nounwind {
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; CHECK-LABEL: @test4(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br label [[HEADER:%.*]]
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; CHECK: header:
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; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[IV_INC:%.*]], [[HEADER]] ]
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; CHECK-NEXT: [[IV_INC]] = add i32 [[IV]], 1
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; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[IV]], [[N:%.*]]
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; CHECK-NEXT: br i1 [[CMP]], label [[EXIT:%.*]], label [[HEADER]]
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; CHECK: exit:
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; CHECK-NEXT: ret i32 [[IV]]
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;
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entry:
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br label %header
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header:
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%iv = phi i32 [0, %entry], [%iv.inc, %header]
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%iv2 = phi i32 [0, %entry], [%iv2.inc, %header]
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%iv.inc = add i32 %iv, 1
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%iv2.inc = add i32 %iv2, 1
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%cmp = icmp eq i32 %iv, %N
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%cmp2 = icmp sle i32 %iv2.inc, %N
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call void @llvm.assume(i1 %cmp2)
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%cmp3 = icmp sge i32 %iv2.inc, 0
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call void @llvm.assume(i1 %cmp3)
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br i1 %cmp, label %exit, label %header
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exit:
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ret i32 %iv
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}
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; phi is used in assume and in compare.
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define i32 @test5(i32 %N, i32 %M) nounwind {
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; CHECK-LABEL: @test5(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br label [[HEADER:%.*]]
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; CHECK: header:
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; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[IV_INC:%.*]], [[HEADER]] ]
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; CHECK-NEXT: [[IV2:%.*]] = phi i32 [ 0, [[ENTRY]] ], [ [[IV2_INC:%.*]], [[HEADER]] ]
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; CHECK-NEXT: [[IV_INC]] = add i32 [[IV]], 1
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; CHECK-NEXT: [[IV2_INC]] = add i32 [[IV2]], 1
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; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[IV]], [[N:%.*]]
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; CHECK-NEXT: [[CMP3:%.*]] = icmp sge i32 [[IV2_INC]], [[M:%.*]]
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; CHECK-NEXT: [[CMP4:%.*]] = and i1 [[CMP]], [[CMP3]]
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; CHECK-NEXT: br i1 [[CMP4]], label [[EXIT:%.*]], label [[HEADER]]
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; CHECK: exit:
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; CHECK-NEXT: ret i32 [[IV]]
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;
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entry:
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br label %header
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header:
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%iv = phi i32 [0, %entry], [%iv.inc, %header]
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%iv2 = phi i32 [0, %entry], [%iv2.inc, %header]
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%iv.inc = add i32 %iv, 1
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%iv2.inc = add i32 %iv2, 1
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%cmp = icmp eq i32 %iv, %N
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%cmp2 = icmp sle i32 %iv2.inc, %N
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call void @llvm.assume(i1 %cmp2)
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%cmp3 = icmp sge i32 %iv2.inc, %M
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%cmp4 = and i1 %cmp, %cmp3
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br i1 %cmp4, label %exit, label %header
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exit:
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ret i32 %iv
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}
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declare i64 @foo(ptr) nounwind readonly willreturn
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declare void @llvm.assume(i1 noundef) nounwind willreturn
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