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Diffstat (limited to 'test/CodeGen/Generic/builtin-expect.ll')
| -rw-r--r-- | test/CodeGen/Generic/builtin-expect.ll | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/test/CodeGen/Generic/builtin-expect.ll b/test/CodeGen/Generic/builtin-expect.ll new file mode 100644 index 0000000..e8cd07b --- /dev/null +++ b/test/CodeGen/Generic/builtin-expect.ll @@ -0,0 +1,223 @@ +; RUN: llc < %s + +define i32 @test1(i32 %x) nounwind uwtable ssp { +entry: + %retval = alloca i32, align 4 + %x.addr = alloca i32, align 4 + store i32 %x, i32* %x.addr, align 4 + %tmp = load i32* %x.addr, align 4 + %cmp = icmp sgt i32 %tmp, 1 + %conv = zext i1 %cmp to i32 + %conv1 = sext i32 %conv to i64 + %expval = call i64 @llvm.expect.i64(i64 %conv1, i64 1) + %tobool = icmp ne i64 %expval, 0 + br i1 %tobool, label %if.then, label %if.end + +if.then: ; preds = %entry + %call = call i32 (...)* @f() + store i32 %call, i32* %retval + br label %return + +if.end: ; preds = %entry + store i32 1, i32* %retval + br label %return + +return: ; preds = %if.end, %if.then + %0 = load i32* %retval + ret i32 %0 +} + +declare i64 @llvm.expect.i64(i64, i64) nounwind readnone + +declare i32 @f(...) + +define i32 @test2(i32 %x) nounwind uwtable ssp { +entry: + %retval = alloca i32, align 4 + %x.addr = alloca i32, align 4 + store i32 %x, i32* %x.addr, align 4 + %tmp = load i32* %x.addr, align 4 + %conv = sext i32 %tmp to i64 + %expval = call i64 @llvm.expect.i64(i64 %conv, i64 1) + %tobool = icmp ne i64 %expval, 0 + br i1 %tobool, label %if.then, label %if.end + +if.then: ; preds = %entry + %call = call i32 (...)* @f() + store i32 %call, i32* %retval + br label %return + +if.end: ; preds = %entry + store i32 1, i32* %retval + br label %return + +return: ; preds = %if.end, %if.then + %0 = load i32* %retval + ret i32 %0 +} + +define i32 @test3(i32 %x) nounwind uwtable ssp { +entry: + %retval = alloca i32, align 4 + %x.addr = alloca i32, align 4 + store i32 %x, i32* %x.addr, align 4 + %tmp = load i32* %x.addr, align 4 + %tobool = icmp ne i32 %tmp, 0 + %lnot = xor i1 %tobool, true + %lnot.ext = zext i1 %lnot to i32 + %conv = sext i32 %lnot.ext to i64 + %expval = call i64 @llvm.expect.i64(i64 %conv, i64 1) + %tobool1 = icmp ne i64 %expval, 0 + br i1 %tobool1, label %if.then, label %if.end + +if.then: ; preds = %entry + %call = call i32 (...)* @f() + store i32 %call, i32* %retval + br label %return + +if.end: ; preds = %entry + store i32 1, i32* %retval + br label %return + +return: ; preds = %if.end, %if.then + %0 = load i32* %retval + ret i32 %0 +} + +define i32 @test4(i32 %x) nounwind uwtable ssp { +entry: + %retval = alloca i32, align 4 + %x.addr = alloca i32, align 4 + store i32 %x, i32* %x.addr, align 4 + %tmp = load i32* %x.addr, align 4 + %tobool = icmp ne i32 %tmp, 0 + %lnot = xor i1 %tobool, true + %lnot1 = xor i1 %lnot, true + %lnot.ext = zext i1 %lnot1 to i32 + %conv = sext i32 %lnot.ext to i64 + %expval = call i64 @llvm.expect.i64(i64 %conv, i64 1) + %tobool2 = icmp ne i64 %expval, 0 + br i1 %tobool2, label %if.then, label %if.end + +if.then: ; preds = %entry + %call = call i32 (...)* @f() + store i32 %call, i32* %retval + br label %return + +if.end: ; preds = %entry + store i32 1, i32* %retval + br label %return + +return: ; preds = %if.end, %if.then + %0 = load i32* %retval + ret i32 %0 +} + +define i32 @test5(i32 %x) nounwind uwtable ssp { +entry: + %retval = alloca i32, align 4 + %x.addr = alloca i32, align 4 + store i32 %x, i32* %x.addr, align 4 + %tmp = load i32* %x.addr, align 4 + %cmp = icmp slt i32 %tmp, 0 + %conv = zext i1 %cmp to i32 + %conv1 = sext i32 %conv to i64 + %expval = call i64 @llvm.expect.i64(i64 %conv1, i64 0) + %tobool = icmp ne i64 %expval, 0 + br i1 %tobool, label %if.then, label %if.end + +if.then: ; preds = %entry + %call = call i32 (...)* @f() + store i32 %call, i32* %retval + br label %return + +if.end: ; preds = %entry + store i32 1, i32* %retval + br label %return + +return: ; preds = %if.end, %if.then + %0 = load i32* %retval + ret i32 %0 +} + +define i32 @test6(i32 %x) nounwind uwtable ssp { +entry: + %retval = alloca i32, align 4 + %x.addr = alloca i32, align 4 + store i32 %x, i32* %x.addr, align 4 + %tmp = load i32* %x.addr, align 4 + %conv = sext i32 %tmp to i64 + %expval = call i64 @llvm.expect.i64(i64 %conv, i64 1) + switch i64 %expval, label %sw.epilog [ + i64 1, label %sw.bb + i64 2, label %sw.bb + ] + +sw.bb: ; preds = %entry, %entry + store i32 0, i32* %retval + br label %return + +sw.epilog: ; preds = %entry + store i32 1, i32* %retval + br label %return + +return: ; preds = %sw.epilog, %sw.bb + %0 = load i32* %retval + ret i32 %0 +} + +define i32 @test7(i32 %x) nounwind uwtable ssp { +entry: + %retval = alloca i32, align 4 + %x.addr = alloca i32, align 4 + store i32 %x, i32* %x.addr, align 4 + %tmp = load i32* %x.addr, align 4 + %conv = sext i32 %tmp to i64 + %expval = call i64 @llvm.expect.i64(i64 %conv, i64 1) + switch i64 %expval, label %sw.epilog [ + i64 2, label %sw.bb + i64 3, label %sw.bb + ] + +sw.bb: ; preds = %entry, %entry + %tmp1 = load i32* %x.addr, align 4 + store i32 %tmp1, i32* %retval + br label %return + +sw.epilog: ; preds = %entry + store i32 0, i32* %retval + br label %return + +return: ; preds = %sw.epilog, %sw.bb + %0 = load i32* %retval + ret i32 %0 +} + +define i32 @test8(i32 %x) nounwind uwtable ssp { +entry: + %retval = alloca i32, align 4 + %x.addr = alloca i32, align 4 + store i32 %x, i32* %x.addr, align 4 + %tmp = load i32* %x.addr, align 4 + %cmp = icmp sgt i32 %tmp, 1 + %conv = zext i1 %cmp to i32 + %expval = call i32 @llvm.expect.i32(i32 %conv, i32 1) + %tobool = icmp ne i32 %expval, 0 + br i1 %tobool, label %if.then, label %if.end + +if.then: ; preds = %entry + %call = call i32 (...)* @f() + store i32 %call, i32* %retval + br label %return + +if.end: ; preds = %entry + store i32 1, i32* %retval + br label %return + +return: ; preds = %if.end, %if.then + %0 = load i32* %retval + ret i32 %0 +} + +declare i32 @llvm.expect.i32(i32, i32) nounwind readnone + |